Accession Number:

AD0777790

Title:

Stress Corrosion of Chaparral Fin Retainers

Descriptive Note:

Technical rept.

Corporate Author:

ARMY MISSILE RESEARCH DEVELOPMENT AND ENGINEERING LAB REDSTONE ARSENAL AL GROUND EQUIPMENT/MATERIALS DIRECTORATE

Personal Author(s):

• Honeycutt, John H.

Report Date:

1974-01-25

Pagination or Media Count:

18.0

Abstract:

An investigation of the stress-corrosion characteristics of two materials proposed for use as fin retainers for the CHAPARRAL missile system was made. The two materials were 17-7PH stainless steel and QQ-S-777 carbon spring steel. Retainers made from these two materials were mounted on a test fixture, which simulated the static loading conditions, and subjected to a salt fog environment per MIL-STD-151-B. It was concluded that the retainers manufactured from the spring steel QQ-S-777 were superior to those manufactured from the 17-7PH stainless steel.

Descriptors:

• *SURFACE TO AIR MISSILES
• *FINS
• *STRESS CORROSION
• *SUPPORTS
• CARBON STEELS
• PHYSICAL METALLURGY
• STAINLESS STEEL
• TENSILE STRESS

Subject Categories:

• Properties of Metals and Alloys
• Surface-Launched Guided Missiles

Distribution Statement:

APPROVED FOR PUBLIC RELEASE