Machine casting of ferrous alloys. Final report, 30 June 1976--30 June 1977

Technical Report · Wed Jun 01 00:00:00 EDT 1977

OSTI ID:6668392

Flemings, M C; Young, K P; Boylan, J F; Bye, R L; Santor, M L

During this year the basic Rheocasting system, which was fully operational at the beginning of the year, was improved in various ways to increase reliability and productivity. Specific improvements were the addition of a reducing gas in the melting chamber, a shield gas extension nozzle and graphite inserts at the bottom of the Rheocaster to eliminate 'hot spots'. Large quantities of 304 and 440C stainless steel alloys were cast during this period (approximately 800 pounds of 304 and 2000 pounds of 440C) and smaller quantities of other materials were also Rheocast including M2 tool steel, and HS 31 Cobalt base superalloy. Improvements in details and automation of the Thixocasting process were also made during this period. Work subsequently concentrated on casting large quantities of stainless steel into various die materials in order to determine die life and to optimize that die life.

• Research Organization: Massachusetts Inst. of Tech., Cambridge (USA). Dept. of Materials Science and Engineering
• DOE Contract Number: DAAG46-73-C-0110
• OSTI ID: 6668392
• Report Number(s): AD-A-051155
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHROMIUM ALLOYS
CASTING
COBALT BASE ALLOYS
COPPER ALLOYS
IRON ALLOYS
STAINLESS STEEL-304
STAINLESS STEEL-440
ZIRCONIUM ALLOYS
ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COBALT ALLOYS
CORROSION RESISTANT ALLOYS
FABRICATION
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON BASE ALLOYS
MATERIALS
NICKEL ALLOYS
STAINLESS STEELS
STEELS
360101* - Metals & Alloys- Preparation & Fabrication