Accession Number : AD0748359

Title :   Effect of Thermomechanical Treatment of the Stress Corrosion Cracking Susceptibility of Beta III Titanium.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s) : Seats,John H.

Report Date : JUN 1972

Pagination or Media Count : 107

Abstract : Specimens receiving cold-working treatments of 0, 2, 5, 10, 20, and 50% were given 8 hour precipitation hardening treatments at 900F and subsequently subjected to stress levels of 80% of yield in a 3.5w/o NaCl at ambient temperature. An alternate wet/dry test was used to simulate actual service conditions. These tests were conducted until failure occurred or a minimum of 720 hourtest time limit had elapsed. A 720 hour test time was considered sufficient to establish the degree of stress corrosion cracking susceptibility. A more severe test was performed on a small number of specimens to determine if crack initiation was a factor in stress corrosion cracking. (Author)

Descriptors :   (*TITANIUM ALLOYS, *STRESS CORROSION), HEAT TREATMENT, MOLYBDENUM ALLOYS, TIN ALLOYS, ZIRCONIUM ALLOYS, COLD WORKING, FAILURE(MECHANICS), CRACKS, THESES

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE