Achieving dispersed fine soft Bi particles and grain refinement in a hypermonotectic Al-Bi alloy by severe plastic deformation and annealing

被引：15
作者：
Zha, Min [1 ,2 ,5 ]
Yu, Zhi-Yuan [1 ,2 ]
Qian, Feng [3 ]
Wang, Hui-Yuan [1 ,2 ,5 ]
Li, Yan-Jun [3 ]
Mathiesen, Ragnvald H. [4 ]
Roven, Hans J. [3 ]
机构：
[1] Jilin Univ, Minist Educ, Key Lab Automobile Mat, Nanling Campus,5988 Renmin St, Changchun 130025, Jilin, Peoples R China
[2] Jilin Univ, Sch Mat Sci & Engn, Nanling Campus,5988 Renmin St, Changchun 130025, Jilin, Peoples R China
[3] Norwegian Univ Sci & Technol, Dept Mat Sci & Engn, N-7491 Trondheim, Norway
[4] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway
[5] Jilin Univ, Int Ctr Future Sci, Changchun 130012, Jilin, Peoples R China
来源：
SCRIPTA MATERIALIA | 2018年 / 155卷
关键词：
ECAP; Particle dispersion; Al-Bi alloys; Microstructure; Recrystallization; IMMISCIBLE ALLOYS; DIRECTIONAL SOLIDIFICATION; CHANNEL; ECAP; COMPOSITES; EVOLUTION; MATRIX;
D O I：
10.1016/j.scriptamat.2018.06.029
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The present work revealed that equal-channel angular pressing (ECAP) deformation combined with appropriate annealing could represent as an efficient route to modify immiscible as-cast microstructure of a monotectic Al-8Bi alloy by a complete redistribution of immiscible Bi particles and grain refinement of alloy matrix. Especially, we found that the mean size of Bi particles in the 4-pass ECAPed Al-8Bi sample decreases after annealing at 200 degrees C for 8 h, due to inverse coarsening driven by the reduction of elastic energy and interfacial energy induced by morphology change and spatial distribution of Bi particles. (C) 2018 Acta Materialia Inc. Published by Elsevier ltd. All rights reserved.
引用
收藏
页码：124 / 128
页数：5
相关论文
共 26 条
[1]   The effect of coarse second-phase particles on the rate of grain refinement during severe deformation processing [J].
Apps, PJ ;
Bowen, JR ;
Prangnell, PB .
ACTA MATERIALIA, 2003, 51 (10) :2811-2822
[2]   Effect of processing route and second phase particles on grain refinement during equal-channel angular extrusion [J].
Berta, M ;
Apps, PJ ;
Prangnell, PB .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 410 :381-385
[3]  
Ferreira T., 2012, IMAGE J USER GUIDEL
[4]   Microstructural development during equal channel angular pressing of hypo-eutectic Al-Si casting alloy by different processing routes [J].
Garcia-Infanta, J. M. ;
Swaminathan, S. ;
Zhilyaev, A. P. ;
Carreno, F. ;
Ruano, O. A. ;
McNelley, T. R. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 485 (1-2) :160-175
[5]   Directional solidification and microstructural refinement of immiscible alloys [J].
He, Jie ;
Zhao, Jiuzhou ;
Li, Haili ;
Zhang, Xianfei ;
Zhang, Qinxia .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2008, 39A (05) :1174-1182
[6]   Microstructure Formation in Al-Bi-Co Immiscible Alloys Directionally Solidified with Different Melt Superheat Temperatures [J].
He, Jie ;
Xing, Chengyao ;
Zhao, Jiuzhou ;
Zhao, Lei .
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2010, 26 (02) :136-140
[7]   Soft particles assisted grain refinement and strengthening of an Al-Bi-Zn alloy subjected to ECAP [J].
Jia, Hailong ;
Bjorge, Ruben ;
Marthinsen, Knut ;
Mathiesen, Ragnvald H. ;
Li, Yanjun .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 703 :304-313
[8]   Interfacial tension, wetting and nucleation in Al-Bi and Al-Pb monotectic alloys [J].
Kaban, I. ;
Koehler, M. ;
Ratke, L. ;
Hoyer, W. ;
Mattern, N. ;
Eckert, J. ;
Greer, A. L. .
ACTA MATERIALIA, 2011, 59 (18) :6880-6889
[9]   Inverse Ripening and Rearrangement of Precipitates under Chemomechanical Coupling [J].
Kamachali, Reza Darvishi ;
Schwarze, Christian .
COMPUTATIONAL MATERIALS SCIENCE, 2017, 130 :292-296
[10]   A theoretical model for digestive ripening [J].
Lee, Dong-Kwon ;
Park, Sung-Il ;
Lee, Jong K. ;
Hwang, Nong-Moon .
ACTA MATERIALIA, 2007, 55 (15) :5281-5288
123