Understanding the mechanisms of texture evolution in an Mg-2Zn-1Ca alloy during cold rolling and annealing

被引:60
作者
Huang, Xinde [1 ]
Xin, Yunchang [2 ]
Cao, Yu [1 ]
Li, Wei [1 ]
Huang, Guangjie [1 ]
Zhao, Xi [3 ]
Liu, Qing [2 ]
Wu, Peidong [4 ]
机构
[1] Chongqing Univ, Sch Mat Sci & Engn, Chongqing 400044, Peoples R China
[2] Nanjing Tech Univ, Key Lab Light Weight Mat, Nanjing 210009, Peoples R China
[3] North Univ China, Coll Mech & Elect Engn, Taiyuan 030051, Peoples R China
[4] McMaster Univ, Dept Mech Engn, Hamilton, ON L8S 4L7, Canada
基金
中国国家自然科学基金;
关键词
Mg alloy; Texture; Rolling; simulation; Recrystallization; RECRYSTALLIZATION NUCLEATION SITES; AZ31 MAGNESIUM ALLOY; STATIC RECRYSTALLIZATION; DYNAMIC RECRYSTALLIZATION; PLASTIC-DEFORMATION; GRAIN-GROWTH; MG ALLOY; CA; MICROSTRUCTURE; GD;
D O I
10.1016/j.ijplas.2022.103412
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
A TD-split basal texture with two peaks highly tilted from the normal direction (ND) towards the transverse direction (TD) is usually developed in Mg-Zn-Ca plates and can effectively improve ductility and formability. In the present study, the texture evolution during cold rolling and subsequent annealing of a Mg-2Zn-1Ca plate with initial TD-split texture was investigated, and new insights into the mechanisms of texture evolution were obtained. The results show that a dumbbell-shaped basal texture transformed into an elliptical shape after 41% cold rolling. The random distribution of prismatic planes became preferred with < 1010 > largely parallel to the rolling direction (RD). Crystal plasticity simulations revealed that basal slip was the predominant deformation mode, and inclined basal poles toward the ND. The activation of other non-basal slips would retard this tendency. Prismatic slip with a relative activity of 20% to 30% pre-served the pre-existing TD-split texture after a high rolling reduction of 41%. Pyramidal slip prevented the formation of basal fiber and lead to a spreading of basal poles toward the RD mainly at strains over 29%. After full recrystallization, the elliptical TD-split basal texture became a dumbbell-shaped TD-split texture. Grain nucleation was observed at grain boundaries (GBN mechanism), within deformation twins (DTN mechanism), and near precipitates (PSN mecha-nism). GBN and DTN mainly developed a TD-split basal-texture. Instead of the formation of random orientations as considered previously, PSN produced a TD-split basal-texture, and the basal poles exhibited a much wider distribution with high angle of the peaks off the ND. The grains nucleated by GBN, DTN, and PSN did not exhibit preferred growth, and consequently, the texture hardly changed during subsequent grain growth.
引用
收藏
页数:20
相关论文
共 88 条
[41]   Effect of Anisotropic Plasticity on the Prediction of Formability of E-Form Magnesium Alloy Sheet [J].
Lee, Yongheon ;
Jung, Seungyoon ;
Baek, Hansung ;
Lee, Jinwoo ;
Choi, Moon-Seok ;
Lee, Myoung-Gyu .
INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY, 2019, 20 (06) :1183-1193
[42]   On the texture evolution of Mg-Zn-Ca alloy with different hot rolling paths [J].
Li, Q. ;
Huang, G. J. ;
Huang, X. D. ;
Pan, S. W. ;
Tan, C. L. ;
Liu, Q. .
JOURNAL OF MAGNESIUM AND ALLOYS, 2017, 5 (02) :166-172
[43]   Designing Mg alloys with high ductility: Reducing the strength discrepancies between soft deformation modes and hard deformation modes [J].
Liu, Guobao ;
Zhang, Jing ;
Xi, Guoqiang ;
Zuo, Rulin ;
Liu, Shuang .
ACTA MATERIALIA, 2017, 141 :1-9
[44]   Experimentally quantifying critical stresses associated with basal slip and twinning in magnesium using micropillars [J].
Liu, Y. ;
Li, N. ;
Kumar, M. Arul ;
Pathak, S. ;
Wang, J. ;
McCabe, R. J. ;
Mara, N. A. ;
Tome, C. N. .
ACTA MATERIALIA, 2017, 135 :411-421
[45]   Unusual cold rolled texture in an Mg-2.0Zn-0.8Gd sheet [J].
Luo, J. ;
Hu, W. W. ;
Jin, Q. Q. ;
Yan, H. ;
Chen, R. S. .
SCRIPTA MATERIALIA, 2017, 127 :146-150
[46]   The recrystallization and texture of magnesium-zinc-cerium alloys [J].
Mackenzie, L. W. F. ;
Pekguleryuz, M. O. .
SCRIPTA MATERIALIA, 2008, 59 (06) :665-668
[47]   The deformation, recrystallisation and texture of three magnesium alloy extrusions [J].
Mackenzie, L. W. F. ;
Davis, B. ;
Humphreys, F. J. ;
Lorimer, G. W. .
MATERIALS SCIENCE AND TECHNOLOGY, 2007, 23 (10) :1173-1180
[48]  
Mackenzie L.W. F., 2005, DEFORMATION RECRYSTA
[49]   Descriptive tools for the analysis of texture projects with large datasets using MTEX: strength, symmetry and components [J].
Mainprice, David ;
Bachmann, Florian ;
Hielscher, Ralf ;
Schaeben, Helmut .
ROCK DEFORMATION FROM FIELD, EXPERIMENTS AND THEORY: A VOLUME IN HONOUR OF ERNIE RUTTER, 2015, 409 :251-271
[50]  
Maqbool A, 2021, J MANUF SCI E-T ASME