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Effect of annealing time on the microstructure and mechanical properties of the AlCrFeNi<inf>2</inf>Ti<inf>0.5</inf>high entropy alloys

Release Time:2019-03-11  Hits:

Indexed by: Conference Paper

Date of Publication: 2014-07-04

Included Journals: Scopus、EI

Volume: 816

Page Number: 319-323

Abstract: As-cast AlCrFeNi<inf>2</inf>Ti<inf>0.5</inf>high entropy alloy was annealed at 600   C and 800   C for 6 h, 12 h and 24 h, respectively. The effect of annealing time on the microstructure and mechanical properties were investigated intensively. The as-cast sample showed a fine and homogeneous microstructure, and owned an excellent ductility of 16.3%. While the 600   , 12 h annealed sample showed the highest compressive strength of 2658 MPa and yield strength of 2046 MPa. The mechanical properties of the samples after 800   C annealed for 12 h and 24 h deteriorated obviously. High annealing temperature promotes the growth of the crystal grains, and the new generated FeCr-type intermetallic phase leads to the embrittlement of the alloy. ? (2015) Trans Tech Publications, Switzerland.

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