Mechanical properties of a Ti-Al-Cr alloy

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(94)90363-8· OSTI ID:5306088

Chen, Weijie; Wang, Jianguo; Zhang, Bing; Wan, Xiaojing ^[1]

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1. Shanghai Univ. of Technology (China). Inst. of Materials Science

Poor ductility at low to intermediate temperatures seems to be the most serious obstacle to a wide application of TiAl alloys. Research reports that the tensile elongation of as-cast and homogenized alloys does not exceed 1%. A number of studies have been undertaken to seek improvement for the ductility of these materials, while most efforts concentrate on the element alloying and thermal processing of dual phase (alpha-2 and gamma phases) TiAl alloys. It was suggested that the presence of [beta] phase will also improve the ductility of TiAl alloys with lower aluminum content, and with the addition of chromium and niobium elements, since it has been reported that [beta] phase further improves the deformability in two phase Ti[sub 3]Al+Nb alloys. Recently, [beta] phase was found in microstructures with alpha-2 and gamma phases in some ternary TiAl alloys, but detailed reports about the mechanical properties of the three-phase TiAl alloys have rarely been made. This study focuses on the mechanical properties of a Ti-Al-Cr alloy, with [beta] phase.

• OSTI ID: 5306088
• Journal Information: Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 30:1; ISSN SCRMEX; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOY SYSTEMS
ALLOYS
ALUMINIUM ALLOYS
CHROMIUM ALLOYS
MECHANICAL PROPERTIES
TERNARY ALLOY SYSTEMS
TITANIUM ALLOYS
TITANIUM BASE ALLOYS