Effects of Cr Content on Microstructure and Mechanical Properties of AlCoCrxFeNi High-Entropy Alloy
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-21
Country of Publication
Egypt
No. of Pages
7
Abstract EN
In this study, we investigated the effects of Cr content on the crystal structure, microstructure, and mechanical properties of four AlCoCrxFeNi (x = 0.3, 0.5, 0.7, and 1.0, in molar ratio) high-entropy alloys.
AlCoCr0.3FeNi alloy contains duplex phases, which are ordered BCC phase and FCC phase.
As the Cr content increases to x = 1.0, the FCC phase disappears and the microstructure exhibits a spinodal structure formed by a BCC phase and an ordered BCC phase.
This result indicates that Cr is a BCC former in AlCoCrxFeNi alloys.
With increasing Cr content, the alloy hardness increases from HV415 to HV498.
AlCoCr0.3FeNi, AlCoCr0.5FeNi, and AlCoCr0.7FeNi exhibit a high compressive fracture strain of about 0.24 because of the formation of the FCC phase in the BCC matrix.
Moreover, the highest yield stress of 1394 MPa and compressive strength of 1841 MPa presented by AlCoCrFeNi alloy are due to the existence of a nano-net-like spinodal structure.
American Psychological Association (APA)
Shun, Tao-Tsung& Hung, Wei-Jhe. 2018. Effects of Cr Content on Microstructure and Mechanical Properties of AlCoCrxFeNi High-Entropy Alloy. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1121203
Modern Language Association (MLA)
Shun, Tao-Tsung& Hung, Wei-Jhe. Effects of Cr Content on Microstructure and Mechanical Properties of AlCoCrxFeNi High-Entropy Alloy. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1121203
American Medical Association (AMA)
Shun, Tao-Tsung& Hung, Wei-Jhe. Effects of Cr Content on Microstructure and Mechanical Properties of AlCoCrxFeNi High-Entropy Alloy. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1121203
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121203