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1 Navy Ships Corrosion Project Implementation DoD Maintenance Conference Fort Worth, Texas November 15 , 2011

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Page 1: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

1

Navy Ships Corrosion Project

Implementation

DoD Maintenance Conference Fort Worth, Texas

November 15 , 2011

Page 2: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Outline

• Corrosion Detection Methods – Tank Sensors – Corrosion Detection Algorithm – Topside /Freeboard surveys

• Composites – Electrical enclosures – Electrical conduit and end connectors – Rapid Manufacturing

• Paint Removal – Induction Heating

Page 3: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Economic Relevance: Corrosion Costs for Naval Platforms

Total Annual DoN Cost: $7.36B

3.0

3.2

0.70.46

Corrosion Maintenance Cost, $B

Aviation

Ships

Ground Vehicles

Facilities

Top 20 Corrosion Cost Drivers Navy Ships

Page 4: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Ballast Tank Corrosion Importance to the Navy

Represervation of US Navy ship tanks represented # 1 annual maintenance cost to fleet Currently, 4000 shipboard tanks opened, cleaned, inspected and gas-freed each year at a total cost $32M/yr Cost of preservation over $250M to preserve tanks each year 50 % of tank work is unplanned due to corrosion occurring during the interval between cyclic inspections Tanks are difficult to inspect and evaluate, at a cost of $8-15K per tank gas-free, open & inspect

Page 5: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Maintenance $ Savings Open, Cleaning, Gas-free & Inspect

Current Cost of $32M per year Eliminate Cleaning & Gas-Free w/Remote Monitoring Savings of $15M per year

Improved Resource Application Better Maintenance Planning - 10% Saving Savings of $25M per year

Reduced Structural Damage Savings from Improved Inspections & Analysis, Early Detection, Re-preservation & Remedial Actions Est. Savings of $10M per year

$50M = Total Expected Annual Savings

Page 6: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Corrosion Sensor Overview

Measures the “state of preservation” without the need for costly opening/gas-freeing or manned entry.

Consists of a polarization sensors and instrumented anode and to establish tank coating condition. Allows for monitoring of both electrochemical potential (at multiple points) and the measurement of current requirements via instrumented anodes. Resultant data and analyses allow for quantitative determination of tank coating condition.

Page 7: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Corrosion Sensor Components Measures the “state of preservation” without the need for costly opening/gas-freeing or manned entry. Consists of :

Ag/AgCl Chloride Reference Half-Cells (qty. 2-5 per sensor system): measures the polarization behavior of the tank (Corrosion Protection Level) Instrumented Zinc Anode which allows for independent measurement of anode current output (Relates to Tank Coating Condition and allows for Cathodic Protection System Life Prediction) Integral Logging System for long-term data storage (Stand Alone or Ship Tie-in System with 15yr Battery Life) Analysis Software for Corrosion Risk Assessment, Ranking and Trend Analysis of single or multiple tanks aboard ship

Page 8: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

8 8

USS SAIPAN Corrosion Sensor Installation

Page 9: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Hatch

Hatch

Third Deck Ballast Tank

Fifth Deck Ballast Tank

Portable Antenna

Wing Tank Cutaway

Third Deck

Fifth Deck

Corrosion Sensors

Page 10: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Raw Sensor Data (6 fill events)

550

650

750

850

950

1050

Jun-18

Jun-28

Jul-8

Jul-1

8

Jul-2

8

Aug-7

Aug-17

Aug-27

Sep-6

Sep-16

Sep-26

Oct-6

Oct-16

Oct-26

Nov-5

Nov-15

Nov-25

Dec-5

Date

Pote

ntia

l Vs

Ag/

AgC

l (-m

V)

0

50

100

150

200

250

300

Zinc

Cur

rent

OU

tput

(mA

)

Low RefMid RefTop RefZinc

USS GUNSTON HALL

Page 11: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Naval Research Lab. DEC 2003

11

0.600 0.650 0.700 0.750 0.800 0.850 0.900 0.950 1.000

6-196-2-W

6-196-O-W

6-196-1-W

3-248-2-W

3-248-1-W

6-228-O-W

6-228-1-W

6-228-2-W

3-228-1-W

3-338-2-W

6-96-1-W

6-96-2-W

6-84-O-W

6-52-2-W

6-52-1-W

6-52-O-W

6-180-O-W

6-212-O-W

Tan

k

Potential vs Ag/AgCl(-V)

Ranking Algorithm Results Seawater Tank Population

Average Estable Events

Page 12: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Tank Corrosion Sensors Current Ship Installations

Ship Tank Type Sensor Type Program Year

USS PORTLAND LSD-37** 4 SW Ballast Demonstration ONR – CBM 2/1997 USS RUSHMORE LSD-47* 4 SW Ballast * Demonstration ONR – CBM 5/1997 USS WASP LHD-1 6 SW Ballast Demonstration ONR – CBM 1/1998 USS WASP LHD-1 4 SW Ballast Semi-Permanent NAVSEA ERM-1 3/2001 USS WASP LHD-1 1 SW Ballast Permanent ONR Single Coat 12/2003 USS SAIPAN LHA-2 4 SW Ballast Demonstration ONR – CBM 2/1998 USS SAIPAN LHA-2 4 SW Ballast Permanent NAVSEA ERM-1 6/2002 USS KINKAID DD-965** 2 Comp Fuel Demonstration ONR – CBM 5/1998 USS COMSTOCK LSD-45 4 SW Ballast Demonstration ONR – CBM 2/1999 USS TORTUGA LSD-46 4 SW Ballast Demonstration ONR – CBM 4/1999 USS TORTUGA LSD-46 6 SW Ballast Demonstration NAVSEA ERM-1 6/2000 USS TORTUGA LSD-46 3 SW Ballast Permanent ONR Single Coat 10/2003 USS OLDENDORF DD-972** 1 Comp Fuel Demonstration ONR – CBM 7/1999 USS CLEVELAND LPD-07 6 SW Ballast Demonstration JASPA 6/2000 USS MT VERNON LSD-39** 6 SW Ballast Demonstration JASPA 2/2001 USS GUNSTON HALL LSD-44 1 SW Ballast Permanent ONR Single Coat 5/2002 USS WHIDBEY ISLAND LSD-41 2 SW Ballast Permanent ONR Single Coat 5/2003

* ICAS Tie-in System, ** Decommissioned

Page 13: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Imaging Issues Significant Variation - Imaged Areas Shipboard Tank & Void Imagery Significant Variation in Coatings’ Color, Texture and Sheen and Coatings

Damage Shapes and Colors

Optical Inspection

Page 14: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Insertable Stalk Imaging System (ISIS) Optical Inspection

Page 15: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Insertable Stalk Inspection System (ISIS)

Page 16: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Insertable Stalk Inspection System (ISIS)

Remote Tank Inspection System with Corrosion Detection Algorithm (CDA)

Page 17: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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ISIS Image Collection and Analysis 1% > 3.5% Degradation

7.26 %

10.26 %

4.04 %

1.86 %

2.18 %

Front View Typical Tank Configuration

Visual Image Analyzed Image

Visual Image Analyzed Image

ISIS Image

Capture Areas

Optical Inspection

Page 18: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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Image of tank structure showing 0.5% damage

Seawater Ballast Tank Images, Showing Varying Degrees of Damage

with Respective Tank Ranking

Image of tank structure showing 1% damage

Image of tank structure showing 3 % damage

Image of tank structure showing 4 - 5 % damage

Page 19: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Corrosion Detection Algorithm

• Topside – Freeboard coatings – Painting was the highest cost area in the

2006 and 2007 cost of corrosion study – Cost of painting was $451 M in FY 2007 – $300M Freeboard – Almost 10 percent of total corrosion cost

Page 20: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

USS Truman (CVN-75) FY-06 DPIA Freeboard Preservation Analysis (63141)

Orig Award $10.5 milAward After Aval Start $1.1 mil

Total Cost at Completion $11,587,806

Blast & Prep $4.8milPainting $1.6milMisc Matl & Equip Rntl $1.0milStaging, Contain, Blank $1.3milServices $1milQA $0.2milPaint Matl $0.5mil

Orig Award Price $10.5 mil

Growth $410KSponsons $575KPlanning Error $70KD & D $35KSF $3K

Awarded After Avail Start $1.1 mil

Orig gov’t est $10.6 mil

Scope of Work Hydro Blast and paint top of boot top to bottom edge of catwalks. From bottom edge of catwalk to wheel stops low pressure wash 3K-5K PSI and preserve. REDUCED SCOPE FROM GW

46%

15%

10%

14%

2%

52%

6%

3% 1%

90%

10%

38%

Costs per sq/ft = $19.74 587K sq/ft

8%

Page 21: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Marriage of New Coating Systems with New Inspection Technology

• Current legacy products have been proven to be poor performers

• The necessary inspection tools AND procedures have not been employed for assessing topside and nonskid coating condition and arguably not previously existed

June 2010 USS Nimitz survey found an average of 23 mils extra paint from overcoating → 14 tons extra topside weight

Page 22: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Composites - The Problem • Due to prolonged exposure in a harsh sea environment, the

traditional materials used in the manufacture of electrical boxes and conduit consistently require maintenance or replacement.

• Boxes and conduit provide protection from the harsh topside environment and mechanical damage. Certain electrical systems also require boxes / conduit to provide EMI/EMP shielding. Failure of boxes or conduit is often detrimental to shipboard operations. – Metallic boxes corrode resulting in box seal leakage and loss

of electrical function • Switches and controls are no longer operational • Personnel safety hazard - potential for electrical shock

– Brass boxes corrode the ship structure – Conduit and metal fittings corrode causing electrical system

failure or reduced EMI/EMP performance.

Page 23: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Metal fittings corrode resulting in loss of function of the encased electrical system

Stern gate and lighting control system corrosion

Typical conduit jacket failure Ship structure corrosion due to Brass enclosure box

Page 24: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Demonstration – Stern Gate Controller of Amphibious Ship (LSD)

24

Ship Commanding Officer points out problem

Page 25: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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COMPOSITE ELECTRICAL BOXES INSTALLATION SYSTEMS APPROACH

• IDENTIFIED COMPOSITE BOX CORROSION MECHANISMS AND ENSURED THAT ENTIRE BOX SYSTEM (INCLUDING MOUNTING) WOULD PREVENT CORROSION.

BRASS BOX

PAINT

STEEL SHIP

CORROSION COMPOSITE BOX

IMPROVED PAINT

STEEL SHIP

CURRENT BOXES

FUTURE BOXES STAINLESSSHOULDER STUD & AIR GAP

Page 26: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Demonstration – Stern Gate Controller of Amphibious Ship (LSD)

26

Page 27: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

OSD Composite EMP Conduit Terminations

Objective • Eliminate chronic corrosion issues &

electrical loss associated with CRES • Develop technology that surpasses

the performance of the legacy • Reduce maintenance • Increase system reliability

Payoff • 75 dB attenuation via insertion loss

measurement (NSWCDD) • 1/3 the weight of 316L CRES • Corrosion free (672 hours of SO2

salt fog test) • Lower acquisition costs due to

improved manufacturing • Exceeds the requirements of the

new MIL-PRF-24758A

Page 28: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Composite Boxes and Conduit • Mitigate the effects of corrosion and excessive

weathering with high performance composite materials

Composites in Stern Gate Area

Composite Electrical Connector after 1 ½ years

Composite Box and Conduit

Composite Conduit

Page 29: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Composite Boxes in Fleet USS Vella Gulf on

Deployment

Stern gate and lighting control system corrosion

Composite Phone Jack Box

Page 30: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

USS Carter Hall Planned Installation

Quantity NAME New Composite NSN PART/ SYMBOL # Part Number Ref # 17 Quad SPT 5935-01-572-5631 SYMBOL 2843 147-021XMS-03 20 Dual SPT 5935-01-572-6657 SYMBOL 2842 147-021XMS-02 8 Single SPT 5935-01-572-5487 SYM 2841 147-022XMS-01

15 Single 115V 5940-01-557-2667 SYM 1099.1 147-023XMS-02 18 Large 5935-01-557-2679 ENC6X9 140-060XMS-03 8 Small junction w/terminals 5940-01-556-7967 SYMBOL 435.1 140-060XMS-01T3

5 Toggle Switch 147-037XMS-0009 1 Push Button start/stop switch 147-037XMS-0010 1 Dual Lamp Indicator 147-037XMS-0011 2 Rotary Switch 1-9 A, B 147-015XO-2006 1 Single Lamp Indicator 147-037XMS-0012

4 Composite Switch & Receptacle

ASSY 147-038XMS-0008 100

Page 31: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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COMPOSITE ELECTRICAL BOXES BUSINESS CASE

• NAVSEA COLLECTED DATA FROM SHIPBUILDERS AND FLEET REGARDING NUMBER OF BOXES ON SHIPS. Ship Type Number of Boxes Number of Ships Total CVN, CV 477 12 5,724 LHD, LHA, LSD, LPD 230 36 8,280 COMBATANT & OTHER 125 190 23,838 MSC 60 116 6,960 ARMY 29 166 4,814 TOTAL 520 49,616 • 26% OF CARRIER METAL BOXES REPAIRED PER YEAR. 35% OF SMALLER COMBATANT BOXES REPAIRED PER YEAR. INCLUDES ELECTRICAL REPAIR, PAINTING, AND PART REPLACEMENT AT A COST OF $422/BOX. 4-hours ELECTRICIAN AT $53/hr = $212 5-hours PAINTER LABOR AT $40/hr = $200 PAINT & PARTS WERE $10 = $10

Page 32: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

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2001

2003

2005

2007

2009

2011

2013

2015

2017

2019

2021

2023

2025

2027

2029

2031

$0

$500,000

$1,000,000

$1,500,000

$2,000,000

$2,500,000

$3,000,000

$3,500,000

$4,000,000

COMPOSITE BOX Materials & yard Labor ($) METAL BOX Materials & Yard Labor ($)

COMPOSITE ELECTRICAL BOXES BUSINESS CASE – LIFE-CYCLE COSTS FOR CVN SHIP SET

COMPOSITE BOX COSTS $159 & INSTALLATION LABOR COSTS $1,608 & HIGHER SOLIDS PAINT INSTALL COSTS $478 or $1,070,865 FOR A CARRIER SHIP SET

BRASS BOX COSTS $60, INSTALLATION LABOR COSTS $1,608 SUBSTRATE REPAIR PAINT COSTS $436 SCRAP VALUE IS $251 or $1,004,511 PER SHIP SET

Page 33: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Rapid Manufacturing • Rapid Manufacturing Task

o 2 techniques and 2 components were evaluated under this task

• Techniques Evaluated 1. Fused Deposition Molding (FDM) 2. Sheet Fold and Weld Process

• Components Evaluated 1. Brow Chain Storage Box 2. Sound Powered Telephone Handset

Cabinet, MIL-T-24649/13 • Fleet Installation

1. Brow Chain Storage Box 1. USS Nitze (Method 2) 24 Mar

2011 2. USS Cole (Method 1) TBD

Side by Side Comparison of Brow Chain Storage Box

Installation of Brow Chain Storage Box on USS Nitze (Method 2)

• Outcome • FDM being used in NAVAIR Depots for small components, appears to be cost prohibitive for

larger scale components • Path forward with SPT Handset cabinet stopped at this time since cabinet did not turn out to

be a “simple box” which was the original intent of the task.

Page 34: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Surface Ship Composite Potential Applications

Flight Deck Edge Light LPH/LHA/LHD

Sound Powered Telephone Handset Cabinet

Cable Wraps and Brackets

Kick Pipe

Page 35: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Heat Induction Coating Removal

Blast & Prep $4.8milPainting $1.6milMisc Matl & Equip Rntl $1.0milStaging, Contain, Blank $1.3milServices $1milQA $0.2milPaint Matl $0.5mil

Coating removal is the highest percentage cost for recoating most surfaces including tanks and freeboard

Page 36: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Heat Induction Coating Removal

Page 37: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Heat Induction Coating Removal

Page 38: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Heat Induction Coating Removal

Page 39: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Heat Induction Coating Removal

Page 40: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Heat Induction Coating Removal

Coating Removal Energy Consumption

0

0.05

0.1

0.15

0.2

0.25

0.3

Abrasive Water Jet Induction Chemical

Coating Removal method

kWh

ft²

90% Efficient Energy to Heat Transfer, 75% Reduction in Energy Consumption

Page 41: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Heat Induction Coating Removal

Historical Work Performance for Rubber & Residue Removal in Battery Well

24 Man-Days Actual Work Performance

8 Man-Days

Page 42: Navy Ships Corrosion Project Implementationsae.org/.../2011/Navy_Ships_Corrosion_Project_Implementation.pdf · Navy Ships Corrosion Project Implementation. ... Cleaning, Gas- free

Summary

• DoD Corrosion Projects led to successful technology transitions to reduce cost – Corrosion Detection

• Hardware tank sensors • Software tank and topside algorithms

– Composites – Coating Removal