Hot deformation behavior and microstructure evolution of annealed Al-7.9Zn-2.7Mg-2.0Cu (wt%) alloy

被引：80
作者：
Zang, Qianhao [1 ,2 ]
Yu, Huashun [1 ]
Lee, Yun-Soo [2 ]
Kim, Min-Seok [2 ]
Kim, Hyoung-Wook [2 ]
机构：
[1] Shandong Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Shandong, Peoples R China
[2] Korea Inst Mat Sci, Metall Mat Div, Chang Won 51508, South Korea
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 763卷
关键词：
Aluminum; Processing map; Texture; Dynamic recrystallization; Particle stimulated nucleation (PSN); SEVERE PLASTIC-DEFORMATION; 7050; ALUMINUM-ALLOY; 3D PROCESSING MAP; MG-CU ALLOY; ER-ZR ALLOY; MECHANICAL-PROPERTIES; RECRYSTALLIZATION BEHAVIOR; DYNAMIC RECRYSTALLIZATION; AUTOMOTIVE APPLICATIONS; ELEVATED-TEMPERATURE;
D O I：
10.1016/j.jallcom.2018.05.307
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hot compression test of annealed Al-7.9Zn-2.7Mg-2.0Cu alloy was carried out on a thermo-mechanical simulator (Thermacmaster-Z). The hot deformation behavior of the alloy was studied, and the processing map at the strain of 0.7 was established. The processing map exhibited three stable domains with high efficiency (> 30%), which suggested that good hot workability was obtained for the studied alloy. The continuous dynamic recrystallization (CDRX) and discontinuous DRX (DDRX) by PSN were considered the recrystallization mechanisms at low deformation temperature. The particles promoted the recrystallization by stimulating nucleation at the low deformation temperature. The necklace grains were developed along the original grain boundaries through progressive rotation of subgrains in the studied alloy. The effect of PSN was weaker with increasing the deformation temperature, and CDRX was the dominant recrystallization mechanism at high deformation temperature. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：25 / 33
页数：9
相关论文
共 46 条
[21]   EBSD study of a hot deformed nickel-based superalloy [J].
Lin, Y. C. ;
Wu, Xian-Yang ;
Chen, Xiao-Min ;
Chen, Jian ;
Wen, Dong-Xu ;
Zhang, Jin-Long ;
Li, Lei-Ting .
JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 640 :101-113
[22]   Effect of minor Sc and Zr on recrystallization behavior and mechanical properties of novel Al-Zn-Mg-Cu alloys [J].
Liu, Jing ;
Yao, Pei ;
Zhao, Naiqin ;
Shi, Chunsheng ;
Li, Huijun ;
Li, Xuan ;
Xi, Desheng ;
Yang, Shuo .
JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 657 :717-725
[23]   Effect of hot and cold deformation on the P {011} ⟨455⟩ recrystallization texture in a continuous cast Al-Mn-Mg aluminum alloy [J].
Liu, WC ;
Morris, JG .
SCRIPTA MATERIALIA, 2006, 54 (12) :2095-2099
[24]   Study on hot deformation behavior and intrinsic workability of 6063 aluminum alloys using 3D processing map [J].
Liu, Yang ;
Geng, Cong ;
Lin, Qiquan ;
Xiao, Yifeng ;
Xu, Junrui ;
Kang, Wei .
JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 713 :212-221
[25]   Hot deformation behavior of Ti-6.0Al-7.0Nb biomedical alloy by using processing map [J].
Liu, Yanhui ;
Ning, Yongquan ;
Yao, Zekun ;
Guo, Hongzhen .
JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 587 :183-189
[26]   The correlation between flow behavior and microstructural evolution of 7050 aluminum alloy [J].
Luo, J. ;
Li, M. Q. ;
Wu, B. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 530 :559-564
[27]   A Study on Microstructural Evolution and Dynamic Recrystallization During Isothermal Deformation of a Ti-Modified Austenitic Stainless Steel [J].
Mandal, Sumantra ;
Bhaduri, A. K. ;
Sarma, V. Subramanya .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2011, 42A (04) :1062-1072
[28]   Microstructure evolution and mechanical properties of Al-Zn-Mg-Cu alloy reprocessed by spray-forming and heat treated at peak aged condition [J].
Mazzer, E. M. ;
Afonso, C. R. M. ;
Galano, M. ;
Kiminami, C. S. ;
Bolfarini, C. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 579 :169-173
[29]   Recent development in aluminium alloys for the automotive industry [J].
Miller, WS ;
Zhuang, L ;
Bottema, J ;
Wittebrood, A ;
De Smet, P ;
Haszler, A ;
Vieregge, A .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 280 (01) :37-49
[30]   Characterization of the microstructure, texture and mechanical properties of 7075 aluminum alloy in early stage of severe plastic deformation [J].
Moghaddam, M. ;
Zarei-Hanzaki, A. ;
Pishbin, M. H. ;
Shafieizad, A. H. ;
Oliveira, V. B. .
MATERIALS CHARACTERIZATION, 2016, 119 :137-147
12345