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Type: Journal article
Title: Powder metallurgy synthesis of Heusler Alloys: effects of process parameters
Author: Ahamed Khan, R.
Ghomashchi, R.
Xie, Z.
Chen, L.
Citation: Materials, 2019; 12(10):1596-1-1596-18
Publisher: MDPI
Issue Date: 2019
ISSN: 0921-5107
Statement of
Riaz Ahamed, Reza Ghomashchi, Zonghan Xie and Lei Chen
Abstract: Ni45Co5Mn40Sn10 Heusler alloy was fabricated with elemental powders, using a powder processing route of press and sinter, in place of vacuum induction melting or arc melting route. The effects of process parameters, such as compaction load, sintering time, and temperature, on the transformation characteristics and microstructures of the alloy were investigated. While the effect of compaction pressure was not significant, those of sintering time and temperature are important in causing or annulling martensitic transformation, which is characteristic of Heusler alloys. The processing condition of 1050 °C/24 h was identified to be favorable in producing ferromagnetic Heusler alloy. Longer durations of sintering resulted in an increased γ-phase fraction, which acts as an impediment to the structural transformation.
Keywords: Heusler alloy; powder processing; process parameters; microstructure; martensite
Rights: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
RMID: 0030116315
DOI: 10.3390/ma12101596
Appears in Collections:Mechanical Engineering publications

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