The workability of 'XD' titanium aluminide alloys with low volume fractions of TiB2

Journal Article · Fri May 01 00:00:00 EDT 1992 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(92)90257-F· OSTI ID:7203778

Szaruga, A; Rothenflue, L; Srinivasan, R; Lipsitt, H A ^[1]

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1. Wright State University, Dayton, OH (United States)

A determination is made of the effect of lowering the volume fraction of titanium diboride on the workability of the Ti-48Al-2Mn-2Nb titanium aluminide alloy. It is found that the workability of the low-TiB2 alloys is similar to that of alloys containing 7.5 TiB2; the improved workability of these alloys is accordingly considered to be due to the control of grain size that is achieved by the dispersion of a hard stable phase. While a volume fraction of 0.5 percent was insufficient for consistent retention of fine grain size, alloys with 1-2 vol pct TiB2 deformed uniformly at high temperatures. 6 refs.

• OSTI ID: 7203778
• Journal Information: Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 26:10; ISSN SCRME; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
AEROSPACE INDUSTRY
ALLOYS
ALUMINIUM ALLOYS
BORIDES
BORON COMPOUNDS
CRYSTAL STRUCTURE
FABRICATION
GRAIN SIZE
INDUSTRY
MANGANESE ALLOYS
MATERIALS WORKING
METALLURGICAL EFFECTS
MICROSTRUCTURE
NIOBIUM ALLOYS
SIZE
TITANIUM ALLOYS
TITANIUM BORIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS