Tailoring planar slip to achieve pure metal-like ductility in body-centred-cubic multi-principal element alloys

Uniform tensile ductility (UTD) is crucial for the forming/machining capabilities of structural materials. Normally, planar-slip induced narrow deformation bands localize the plastic strains and hence hamper UTD, particularly in body-centred-cubic (bcc) multi-principal element high-entropy alloys (H...

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Veröffentlicht in:	Nature materials 2023-08, Vol.22 (8), p.950-957
Hauptverfasser:	Wang, Liang, Ding, Jun, Chen, Songshen, Jin, Ke, Zhang, Qiuhong, Cui, Jiaxiang, Wang, Benpeng, Chen, Bing, Li, Tianyi, Ren, Yang, Zheng, Shijian, Ming, Kaisheng, Lu, Wenjun, Hou, Junhua, Sha, Gang, Liang, Jun, Wang, Lu, Xue, Yunfei, Ma, En
Format:	Artikel
Sprache:	eng
Schlagworte:	639/301/1023/1026 639/301/1023/303 Alloying elements Alloys Aluminum Banded structure Biomaterials Chemistry and Materials Science Condensed Matter Physics Cubic lattice Deformation Distortion Ductility Edge dislocations Elastic deformation Elongation Hardening rate Heat treating High entropy alloys Machining MATERIALS SCIENCE Nanotechnology Necking Niobium Optical and Electronic Materials Plastic flow Plastics Titanium Yield strength Yield stress Zirconium
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Zusammenfassung:	Uniform tensile ductility (UTD) is crucial for the forming/machining capabilities of structural materials. Normally, planar-slip induced narrow deformation bands localize the plastic strains and hence hamper UTD, particularly in body-centred-cubic (bcc) multi-principal element high-entropy alloys (HEAs), which generally exhibit early necking (UTD
ISSN:	1476-1122 1476-4660
DOI:	10.1038/s41563-023-01517-0