NBSIR 73-103

Stress Corrosion Behavior of High

Strength Corrosion Resistant Materials

E. Escatante and W. F. Gerhold

Corrosion Section

National Bureau of Standards

Washington, D. C. 20234

February 7, 1973

Prepared for Materials Division

Naval Air Systems Command

Department of the Navy

NBSIR 73-103

STRESS CORROSION BEHAVIOR OF HIGH

STRENGTH CORROSION RESISTANT MATERIALS

E. Escalante and W. F. Gerhold

Corrosion Section

Metallurgy Division

February 7, 1973

Prepared for Materials Division

Naval Air Systems Command

Department of the Navy

U. S. DEPARTMENT OF COMMERCE, Frederick B. Dent, Secretary

NATIONAL BUREAU OF STANDARDS, Richard W. Roberts, Director

Progress Report

on Stress Corrosion Behavior of High Strength

Corrosion Resistant Materials

E. Escalante and W. F. Gerhold

Corrosion Section

Metallurgy Division

Results to date in the investigation of the stress -corrosion behavior

of high strength corrosion resistant materials (authorized under RRMA 2007) are included herein.

The materials that are being studied in this investigation include

the following:

Alloy Steels

PH 14-4 Mo, "C "-rings

PH 14-8 Mo, sheet

17-4 PH, sheet

17-4 PH, forging

PH 15-7 Mo, sheet

AM 350, sheet

AM 355, sheet

AM 355, wire

AM 357, sheet

17-7 PH, sheet

17-7 PH, wire

Thermenol , sheet

A 286, sheet

HNM, sheet

17 Cr-5 Ni, foil

Custom 450

Custom 455

Titanium Alloys

6 A1-4V

C105 VA

A110 AT

CI 15 VA

B120 VCA

The tests are being conducted in the marine atmosphere at the SO' and

800' lots at Kure Beach, North Carolina. Table 1 and Table 2 contain the

results obtained from tests conducted at the 80' and the 800' lots, respectively.

These tests are continuing.

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form NBS-114A H--71) U.S. DEPT. OF COMM. I 1. PUBLICATION OR REPORT NO. 2. Gov't Accession

BIBLIOGRAPHIC DATA j NBSIR 73-103 N°'

3. Recipient's Accession No.

4. TITLE AND SUBTITLE

Progress Report on Stress Corrosion Behavior of High

Strength Corrosion Resistant Materials

5. Publication Date January

6. Performing Organization Code

7. AUTHOR(S) _ _ . , „. _ _ i . , E. Escalante and W. F. Gerhold

8. Performing Organ i/.mon

9. PERFORMING ORGANIZATION NAME AND ADDRESS

NATIONAL BUREAU OF STANDARDS

UtrAKlMtlNl Ur LL/MMllK^E.

WASHINGTON, D.C. 20234

10. Hro|cct/T.isk/Work Unit No. 3120410

11. Contract/Grant No.

12. Sponsoring Organization Name and Address

Materials Division

Naval Air Systems Command

Department of the Navy

13. Type of Report Si Period

Covered

14. Sponsoring Agency Code

15. SUPPLEMENTARY NOTES

16. ABSTRACT (A 200-word or less factual summary of most significant information. If document includes a significant

bibliography or literature survey, mention it here.)

This report contains results to date in the investigation of the stress-corrosion

behavior of high strength, corrosion-resistant materials exposed to marine

environments. These materials are high strength alloy steels and titanium alloys

in the form of c-rings, wire, sheet, forgings, and foil. The investigation is still

in progress.

17. KEY WORDS (Alphabetical order, separated by semicolons) Alloy Steels; high Strength materials

marine environment; stress .corrosion; titanium alloys.

18. AVAILABILITY STATEMENT

UNLIMITED.

1x1 FOR OFFICIAL DISTRIBUTION. DO NOT RELEASE

TO NTIS.

19. SECURITY CLASS

(THIS REPORT)

UNCL ASSIFIED

20. SECURITY CLASS

(THIS PAGE)

21. NO. OF PAGES

14

22. Price

UNCLASSIFIED

USCOMM-OC 6