DEVELOPMENT AND PRODUCTION OF IMPROVED MOLYBDENUM SHEET BY POWDER METALLURGY TECHNIQUES
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 31, 1963
- Accession Number
- AD0297038
Entities
People
- Lauri D. Tiala
- Richard F. Cheney
- Roger B. Bargainnier
Organizations
- Sylvania Electric Products