Accession Number:

AD0423391

Title:

STRESS CORROSION CRACKING OF HIGH STRENGTH NICKEL ALLOY STEELS FOR AIRCRAFT APPLICATIONS

Descriptive Note:

Corporate Author:

GENERAL DYNAMICS CORP FORT WORTH TX

Personal Author(s):

• Hildebrand, John F.

Report Date:

1963-11-04

Pagination or Media Count:

49.0

Abstract:

Forged parts and billets of AISI 4340, H11 tool steel, and 9 and 18 nickel alloy steels were evaluated for susceptibility to stress corrosion cracking SCC by an alternate immersion test. The alloys were prepared by the consumable electrode-vacuum melt practice and were heat treated as test specimens to strengths in the range from 263,000 to 290,000 psi. Polished specimens were alternately immersed in a 5 NaCl solution while sustaining a load equivalent to 75 of the ultimate strength.

Descriptors:

• *CRACKING(FRACTURING)
• *STEEL
• *STRESS CORROSION
• FILMS
• FORGING
• LUBRICANTS
• MOLYBDENUM ALLOYS
• CHROMIC ACID
• TOOL STEEL
• CORROSIVE LIQUIDS
• COBALT ALLOYS
• SULFIDES
• CHEMICAL ANALYSIS
• FRACTOGRAPHY
• TEST METHODS
• CORROSION INHIBITION

Subject Categories:

• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE