ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Tensile test of TiAl alloy was carried out in 700oC gas environment(H2, pure air, Ar,vacuum) at three strain rates, 2.8x10-4, 2.8x10-5, and 2.8x10-6s-1. With decreasing strain rate, theultimate tensile strength decreased in all environments similarly. However, elongation to fracturediffered from each environment. With decreasing strain rate, the elongation to fracture in vacuumand Ar increased slightly, that in H2 increased much and that in pure air significantly. The reasonsof such behaviour are not known. One of the reasons for high elongation to fracture would beformation of multiple microcracks in H2 and pure air on the gauge surface of the specimen duringtensile deformation
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.345-346.1007.pdf
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