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纳米结构多相CrMnFeCoNi高熵合金中变形诱导的结构与性能变化

Deformation Induced Structure and Property Changes in a Nanostructured Multiphase CrMnFeCoNi High-Entropy Alloy.

作者信息

Schuh Benjamin, Issa Inas, Müller Timo, Kremmer Thomas, Gammer Christoph, Pippan Reinhard, Hohenwarter Anton

机构信息

Erich-Schmid-Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, 8700 Leoben, Austria.

Department of Materials Science, Montanuniversität Leoben, Jahnstraße 12, 8700 Leoben, Austria.

出版信息

Nanomaterials (Basel). 2023 Mar 2;13(5):924. doi: 10.3390/nano13050924.

DOI:10.3390/nano13050924
PMID:36903802
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10005044/
Abstract

A nanocrystalline CrMnFeCoNi high-entropy alloy produced using severe plastic deformation using high-pressure torsion was annealed at selected temperatures and times (450 °C for 1 h and 15 h and at 600 °C for 1 h), causing a phase decomposition into a multi-phase structure. The samples were subsequently deformed again by high-pressure torsion to investigate the possibility of tailoring a favorable composite architecture by re-distributing, fragmenting, or partially dissolving the additional intermetallic phases. While the second phase in the 450 °C annealing states had high stability against mechanical mixing, a partial dissolution could be achieved in the samples subjected to 600 °C for 1 h.

摘要

采用高压扭转严重塑性变形制备的纳米晶CrMnFeCoNi高熵合金在选定的温度和时间（450℃保温1小时和15小时以及600℃保温1小时）下进行退火，导致相分解成多相结构。随后，通过高压扭转使样品再次变形，以研究通过重新分布、破碎或部分溶解额外的金属间相来定制有利的复合结构的可能性。虽然在450℃退火状态下的第二相具有较高的抗机械混合稳定性，但在600℃保温1小时的样品中可以实现部分溶解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/d21eb7e8a775/nanomaterials-13-00924-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/cf6d78c344e3/nanomaterials-13-00924-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/d2dda9b2572c/nanomaterials-13-00924-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/558e736bb8f6/nanomaterials-13-00924-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/5c0d20c6b634/nanomaterials-13-00924-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/05f718aa9f70/nanomaterials-13-00924-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/2f2fa82324f8/nanomaterials-13-00924-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/55fa7464c923/nanomaterials-13-00924-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/62ac0d528770/nanomaterials-13-00924-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/d21eb7e8a775/nanomaterials-13-00924-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/cf6d78c344e3/nanomaterials-13-00924-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/d2dda9b2572c/nanomaterials-13-00924-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/558e736bb8f6/nanomaterials-13-00924-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/5c0d20c6b634/nanomaterials-13-00924-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/05f718aa9f70/nanomaterials-13-00924-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/2f2fa82324f8/nanomaterials-13-00924-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/55fa7464c923/nanomaterials-13-00924-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/62ac0d528770/nanomaterials-13-00924-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c3c9/10005044/d21eb7e8a775/nanomaterials-13-00924-g009.jpg

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本文引用的文献

1
A fracture-resistant high-entropy alloy for cryogenic applications.一种用于低温应用的抗断裂高熵合金。
Science. 2014 Sep 5;345(6201):1153-8. doi: 10.1126/science.1254581.