Microstructure and tensile property of a BCC-structured high entropy alloy fabricated by laser melting deposition

Min Yang; Shi Hai Sun; Benpeng Wang; Yaojian Liang; Lu Wang; Yunfei Xue

doi:10.1088/1742-6596/1948/1/012194

Microstructure and tensile property of a BCC-structured high entropy alloy fabricated by laser melting deposition

Min Yang, Shi Hai Sun^*, Benpeng Wang, Yaojian Liang, Lu Wang, Yunfei Xue

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

The microstructure and tensile property of a BCC-structured high entropy alloy fabricated by laser melting deposition was investigated in this paper. The microstructure of as-deposited specimens was equiaxed grain and consisted of BCC phase and Zr rich precipitate. Due to the in-situ aging effect, the precipitate content in the as-deposited specimen increased with the increase of the distance from the last build plane, which can be weakened by decreasing the input power. With a heat treatment at 950°C for 1h, the precipitate can be completely removed. The strength and ductility of the heat treated specimen were much higher than those of the as-deposited specimen, which may be owing to the increased solution strengthening effect through the dissolution of the precipitates.

Original language	English
Article number	012194
Journal	Journal of Physics: Conference Series
Volume	1948
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/1948/1/012194
Publication status	Published - 28 Jun 2021
Event	2021 2nd International Conference on Internet of Things, Artificial Intelligence and Mechanical Automation, IoTAIMA 2021 - Hangzhou, China Duration: 14 May 2021 → 16 May 2021

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title = "Microstructure and tensile property of a BCC-structured high entropy alloy fabricated by laser melting deposition",

abstract = "The microstructure and tensile property of a BCC-structured high entropy alloy fabricated by laser melting deposition was investigated in this paper. The microstructure of as-deposited specimens was equiaxed grain and consisted of BCC phase and Zr rich precipitate. Due to the in-situ aging effect, the precipitate content in the as-deposited specimen increased with the increase of the distance from the last build plane, which can be weakened by decreasing the input power. With a heat treatment at 950°C for 1h, the precipitate can be completely removed. The strength and ductility of the heat treated specimen were much higher than those of the as-deposited specimen, which may be owing to the increased solution strengthening effect through the dissolution of the precipitates.",

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AU - Yang, Min

AU - Sun, Shi Hai

AU - Wang, Benpeng

AU - Liang, Yaojian

AU - Wang, Lu

AU - Xue, Yunfei

PY - 2021/6/28

Y1 - 2021/6/28

N2 - The microstructure and tensile property of a BCC-structured high entropy alloy fabricated by laser melting deposition was investigated in this paper. The microstructure of as-deposited specimens was equiaxed grain and consisted of BCC phase and Zr rich precipitate. Due to the in-situ aging effect, the precipitate content in the as-deposited specimen increased with the increase of the distance from the last build plane, which can be weakened by decreasing the input power. With a heat treatment at 950°C for 1h, the precipitate can be completely removed. The strength and ductility of the heat treated specimen were much higher than those of the as-deposited specimen, which may be owing to the increased solution strengthening effect through the dissolution of the precipitates.

AB - The microstructure and tensile property of a BCC-structured high entropy alloy fabricated by laser melting deposition was investigated in this paper. The microstructure of as-deposited specimens was equiaxed grain and consisted of BCC phase and Zr rich precipitate. Due to the in-situ aging effect, the precipitate content in the as-deposited specimen increased with the increase of the distance from the last build plane, which can be weakened by decreasing the input power. With a heat treatment at 950°C for 1h, the precipitate can be completely removed. The strength and ductility of the heat treated specimen were much higher than those of the as-deposited specimen, which may be owing to the increased solution strengthening effect through the dissolution of the precipitates.

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DO - 10.1088/1742-6596/1948/1/012194

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Microstructure and tensile property of a BCC-structured high entropy alloy fabricated by laser melting deposition

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