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Grain size stabilization of mechanically alloyed nanocrystalline Fe-Zr alloys by forming highly dispersed coherent Fe-Zr-O nanoclusters
文献类型:期刊
作者:Chen, Y. Z.[1]  Wang, K.[2]  Shan, G. B.[3]  Ceguerra, A. V.[4]  Huang, L. K.[5]  Dong, H.[6]  Cao, L. F.[7]  Ringer, S. P.[8]  Liu, F.[9]  
机构:[1]Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China.;
[2]Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China.;
[3]Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China.;
[4]Univ Sydney, Australian Ctr Microscopy & Microanal, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia.;
[5]Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China.;
[6]Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China.;
[7]Chongqing Univ, Coll Mat Sci & Engn, Minist Educ, Int Joint Lab Light Alloys, Chongqing 400044, Peoples R China.,Chongqing Univ, Electron Microscopy Ctr, Chongqing 400044, Peoples R China.;
[8]Univ Sydney, Australian Ctr Microscopy & Microanal, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia.;
[9]Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China.;
通讯作者:Liu, F (reprint author), Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China.; Cao, LF (reprint author), Chongqing Univ, Electron Microscopy Ctr, Chongqing 400044, Peoples R China.
年:2018
期刊名称:ACTA MATERIALIA影响因子和分区
卷:158
页码范围:340-353
增刊:正刊
学科:材料科学
收录情况:SCI(E)(WOS:000444667600027)  EI(20183205676161)  
所属部门:材料学院
被引频次:5
人气指数:85
浏览次数:84
基金:National Key R&D Program of China [2017YFB0703001]; NSFC of China [51771153, 51371147, 51790481, 51431008]; State Key Lab. of Solidification Processing of Northwestern Polytechnical University [146-QZ-2016]; Fundamental Research Funds for the Central Universities [3102017jc03008]
关键词:Nanocrystalline materials; Fe-based alloys; Precipitates; Oxides; Mechanical alloying; Thermal stability
摘要:
Grain size stabilization is crucial for the production and application of nanocrystalline (NC) materials. The mechanically alloyed (MA) NC Fe-Zr system is known as a very successful NC system as it exhibits excellent thermal stability at elevated temperatures. The grain size stabilization of this system has been previously ascribed to its reduced grain boundary (GB) energy by Zr segregation and Zener pinning of Zr-rich intermetallic precipitates. In this work, we report a different mechanism tha ...More
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