Accession Number:

AD0297038

Title:

DEVELOPMENT AND PRODUCTION OF IMPROVED MOLYBDENUM SHEET BY POWDER METALLURGY TECHNIQUES

Descriptive Note:

Corporate Author:

SYLVANIA ELECTRIC PRODUCTS INC TOWANDA PA

Report Date:

1963-01-31

Pagination or Media Count:

107.0

Abstract:

A powder-metallurgical molybdenum alloy was developed which, in wrought form, has properties as good, or better than, those of arc-cast Mo-0. 5Ti. The alloy, Mo- MTC, was selected after screening 15 molybdenum-alloy systems. Process specifications for 40-mil MTC sheet were developed. In the as-rolled condition the sheet has an ultimate tensile strength at 1200 C of about 60 ksi. It is approximately 50 recrystallized after one hour at 1210 C, and its ductile-brittle transition temperature is below room temperature. MTC seems to be responsive to strain-induced precipitation strengthening in a manner similar to that.5Ti-0.03C MTC, was selected after screening 15 molybdenum- alloy systems. Process specifications for 40-mil MTC sheet were developed. In the as-rolled condition the sheet has an ultimate tensile strength at 1200 C of about 60 ksi. It is approximately 50 recrystallized after one hour at 1210 C, and its ductile-brittle transition temperature is below room temperature. MTC seems to be responsive to strain-induced precipitation strengthening in a manner similar to that ascribed by other investigators to certain arc-cast molybdenum alloys. Sintering at 1850 C is necessary to develop the best properties in MTC sheet.

Subject Categories:

  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE