[1]潘云炜,董安平,杜大帆,等.CrCoNi基多主元合金研究进展[J].中国材料进展,2021,40(04):241-250.[doi:10.7502/j.issn.1674-3962.202007038]
 PAN Yunwei,DONG Anping,DU Dafan,et al.Research Progress of CrCoNi-Based Multi-Component Alloys[J].MATERIALS CHINA,2021,40(04):241-250.[doi:10.7502/j.issn.1674-3962.202007038]
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CrCoNi基多主元合金研究进展()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
40
期数:
2021年第04期
页码:
241-250
栏目:
出版日期:
2021-04-30

文章信息/Info

Title:
Research Progress of CrCoNi-Based Multi-Component Alloys
文章编号:
1674-3962(2021)04-0241-10
作者:
潘云炜董安平杜大帆周阳何林李仲杰汪东红疏达祝国梁孙宝德
(上海交通大学材料科学与工程学院,上海 200240)
Author(s):
PAN YunweiDONG AnpingDU DafanZHOU YangHE LinLI Zhongjie WANG DonghongSHU DaZHU GuoliangSUN Baode
(School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)
关键词:
多主元合金CrCoNi合金元素增材制造力学性能变形孪晶
Keywords:
multi-component alloys CrCoNi alloying elements additive manufacturing mechanical properties deformation twins
分类号:
TG139
DOI:
10.7502/j.issn.1674-3962.202007038
文献标志码:
A
摘要:
总结了近期引起国内外众多学者关注的CrCoNi基多主元合金的研究现状。首先简要地介绍了CrCoNi基合金的发展历史,详细分析了该合金的变形机理,其中包括变形孪晶的形成原因及其对合金性能产生的影响。其次介绍了包括冷轧、热轧和增材制造在内的多种加工工艺对该合金显微组织及力学性能的影响。目前制备CrCoNi合金应用最广泛的方法是“铸造-冷轧-热处理”。但是有学者研究发现,通过增材制造制备的CrCoNi合金,其强度在不经过任何打印后热处理就与传统冷轧+热处理方式制备的合金相当,说明CrCoNi合金是一种非常适合于增材制造加工的合金。随后,分类讨论了多种合金元素对CrCoNi基多主元合金显微组织、相稳定性和力学性能的影响。其中Al和Ti的复合添加使面心立方(FCC)基体上析出了γ′相,对CrCoNi合金的强化效果最为显著,明显改善了合金的力学性能。最后,提出了CrCoNi基多主元合金的后续研究方向及其潜在应用背景。
Abstract:
This review comprehensively summarizes the recent researches of CrCoNi-based multi-component alloys which have attracted broad interest of researchers at home and abroad. The development history and research progress of CrCoNi-based alloys are briefly introduced. The deformation mechanism of the alloy is analyzed in detail, including the formation of the deformation twins and the effects on mechanical properties. Secondly, the effects of various processing techniques including cold rolling, hot rolling and additive manufacturing on the microstructures and mechanical properties of the CrCoNi-based alloy are presented. At present, the most widely used method of preparing CrCoNi alloy is “casting-cold rolling-heat treatment”. However, some researchers have discovered that the mechanical properties of the additive manufactured CrCoNi-based alloys without any post heat treatment are comparable to that of the alloys prepared by the traditional cold rolling and heat treatment, indicating that CrCoNi alloy is very suitable for additive manufacturing. Then the influences of various alloying elements on the microstructures, phase stability and mechanical properties of the CrCoNi-based multi-component alloy are also discussed. Among them, the addition of Al and Ti has the strongest strengthening effect on the CrCoNi alloy, which causes the precipitation of γ′ phase on the FCC matrix, improving the mechanical properties of the alloy. Finally, future research directions and potential applications of CrCoNi-based alloys are proposed.

备注/Memo

备注/Memo:
收稿日期:2020-07-29修回日期:2020-09-17 基金项目:国家自然科学基金面上项目(51771118);国家自然科学基金钢铁联合基金项目(U1760110)第一作者:潘云炜,男,1994年生,博士研究生通讯作者:董安平,男,1977年生,研究员,博士生导师, Email:apdong@sjtu.edu.cn 周阳,男,1988年生,助理研究员,硕士生导师, Email:yzhou76@sjtu.edu.cn
更新日期/Last Update: 2021-03-24