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01-06-2016 | Issue 6/2016

Journal of Materials Engineering and Performance 6/2016

Microstructure and Properties of FeAlCrNiMo x High-Entropy Alloys

Journal:
Journal of Materials Engineering and Performance > Issue 6/2016
Authors:
X. C. Li, D. Dou, Z. Y. Zheng, J. C. Li

Abstract

FeAlCrNiMo x high-entropy alloys were prepared. The effect of Mo content on the microstructure and the properties of the alloys were investigated. When the Mo content was 0.1, the alloys were composed of single BCC solid solution; when Mo content reaches 0.25, the alloys were composed of BCC solid solution and ordered B2 solid solution. When Mo content is more than 0.75, some σ phases emerged. The volume fraction of the second phase increases with the increasing Mo content, and the crystal grains became coarsening. The yield strength, fracture strength, and hardness increase with the increasing Mo content and reach 2252, 2612 MPa, and 1006 Hv, respectively. The magnetic transformation undergoes from the ferromagnetism to paramagnetism with the increasing Mo content. The saturation intensity and remnant magnetism are decreased with the increasing Mo content.

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