Accession Number : AD0768433

Title :   Investigation of the Structure and Corrision Behavior of Alloys in the Ti-Ta-Cr System,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Tomashov,N. D. ; Chernova,G. P.

Report Date : 10 OCT 1973

Pagination or Media Count : 11

Abstract : Polythermal corss sections of the Ti-Ta-Cr system with a ratio of Ta:Cr = 1:3; 1:1; 3:1 were constructed. As the tantalum content in the alloys increases the stability of the beta-phase increases and the eutectic transformation is shifted to the region of higher overall tantalum and chromium content and lowest temperatures. As the tantalum content increases the corrosion rate for both quenched and annealed alloys decreases. The ternary Ti-Ta-Cr alloys with a ratio Ta:Cr = 3:1 and binary Ti-Ta alloys with 20% or more Ta become corrosion resistant in a 5% HC1 solution at 100C. Alloying titanium with chromium reduces its corrosion properties in HC1 solution. The corrosion rate increases as the chromium content increases for both quenched and annealed alloys.

Descriptors :   (*TITANIUM ALLOYS, *CORROSION), TANTALUM ALLOYS, CHROMIUM ALLOYS, HEAT TREATMENT, USSR

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE