Effect of Mn Contents on the Phase Transition of the High Entropy Alloy Prepared by Laser Cladding
Al1.3FeCoNiCuCr high entropy alloy (HEA) coatings were prepared by pre-placed laser cladding on 921A steel substrate, and the study on the phase transition of the Al1.3FeCoNiCuCr coating due to the introduction of Mn was conducted. The combination of TEM and XRD results showed that the Al1.3FeCoNiCu...
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Published in | Materials science forum Vol. 849; pp. 64 - 70 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
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Trans Tech Publications Ltd
01.03.2016
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Abstract | Al1.3FeCoNiCuCr high entropy alloy (HEA) coatings were prepared by pre-placed laser cladding on 921A steel substrate, and the study on the phase transition of the Al1.3FeCoNiCuCr coating due to the introduction of Mn was conducted. The combination of TEM and XRD results showed that the Al1.3FeCoNiCuCr HEA coatings without Mn addition typically consisted of two kinds of grains, i.e., one is composed of only FCC phase, and the another is a mixture of BCC and FCC phases. The two phases were of similar ratio in the coatings, while nanoparticulate precipitates were observed in the bcc phase. When 3 wt. % Mn was introduced into the alloy, the coatings consisted of also FCC and BCC phase. However, most of the grains were in FCC phase, while the BCC phase with a lath shape only distributed between the FCC phases. High hardness nanobanded precipitates were observed in the FCC phase. It is clearly revealed that the phase structure of Al1.3FeCoNiCuCr coatings undergoes a dramatic transition due to the introducing of Mn. |
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AbstractList | Al
1.3
FeCoNiCuCr high entropy alloy (HEA) coatings were prepared by pre-placed laser cladding on 921A steel substrate, and the study on the phase transition of the Al
1.3
FeCoNiCuCr coating due to the introduction of Mn was conducted. The combination of TEM and XRD results showed that the Al
1.3
FeCoNiCuCr HEA coatings without Mn addition typically consisted of two kinds of grains, i.e., one is composed of only FCC phase, and the another is a mixture of BCC and FCC phases. The two phases were of similar ratio in the coatings, while nanoparticulate precipitates were observed in the bcc phase. When 3 wt. % Mn was introduced into the alloy, the coatings consisted of also FCC and BCC phase. However, most of the grains were in FCC phase, while the BCC phase with a lath shape only distributed between the FCC phases. High hardness nanobanded precipitates were observed in the FCC phase. It is clearly revealed that the phase structure of Al
1.3
FeCoNiCuCr coatings undergoes a dramatic transition due to the introducing of Mn. Al1.3FeCoNiCuCr high entropy alloy (HEA) coatings were prepared by pre-placed laser cladding on 921A steel substrate, and the study on the phase transition of the Al1.3FeCoNiCuCr coating due to the introduction of Mn was conducted. The combination of TEM and XRD results showed that the Al1.3FeCoNiCuCr HEA coatings without Mn addition typically consisted of two kinds of grains, i.e., one is composed of only FCC phase, and the another is a mixture of BCC and FCC phases. The two phases were of similar ratio in the coatings, while nanoparticulate precipitates were observed in the bcc phase. When 3 wt. % Mn was introduced into the alloy, the coatings consisted of also FCC and BCC phase. However, most of the grains were in FCC phase, while the BCC phase with a lath shape only distributed between the FCC phases. High hardness nanobanded precipitates were observed in the FCC phase. It is clearly revealed that the phase structure of Al1.3FeCoNiCuCr coatings undergoes a dramatic transition due to the introducing of Mn. |
Author | Liu, Wen Jin Zhang, Wei Ming Ma, Ming Xing Liu, Shi Da Peng, Cun Yuan |
Author_xml | – givenname: Cun Yuan surname: Peng fullname: Peng, Cun Yuan email: anthempeng@163.com organization: Tsinghua University : Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Ministry of Education, Department of Mechanical Engineering – givenname: Wei Ming surname: Zhang fullname: Zhang, Wei Ming organization: Tsinghua University : Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Ministry of Education, Department of Mechanical Engineering – givenname: Wen Jin surname: Liu fullname: Liu, Wen Jin organization: Tsinghua University : Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Ministry of Education, Department of Mechanical Engineering – givenname: Ming Xing surname: Ma fullname: Ma, Ming Xing email: mamx@mail.tsinghua.edu.cn organization: Tsinghua University : Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Ministry of Education, Department of Mechanical Engineering – givenname: Shi Da surname: Liu fullname: Liu, Shi Da email: liusd15@mails.tsinghua.edu.cn organization: Tsinghua University : Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Ministry of Education, Department of Mechanical Engineering |
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Snippet | Al1.3FeCoNiCuCr high entropy alloy (HEA) coatings were prepared by pre-placed laser cladding on 921A steel substrate, and the study on the phase transition of... Al 1.3 FeCoNiCuCr high entropy alloy (HEA) coatings were prepared by pre-placed laser cladding on 921A steel substrate, and the study on the phase transition... |
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Title | Effect of Mn Contents on the Phase Transition of the High Entropy Alloy Prepared by Laser Cladding |
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