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Hot deformation and processing map of a typical Al-Zn-Mg-Cu alloy

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WOS被引频次:133
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成果类型:
期刊论文
作者:
Lin, Y. C.*;Li, Lei-Ting;Xia, Yu-Chi;Jiang, Yu-Qiang
通讯作者:
Lin, Y. C.
作者机构:
[Jiang, Yu-Qiang; Lin, Y. C.; Li, Lei-Ting; Xia, Yu-Chi] Cent S Univ, Sch Mech & Elect Engn, Changsha 410083, Peoples R China.
[Jiang, Yu-Qiang; Lin, Y. C.; Li, Lei-Ting; Xia, Yu-Chi] State Key Lab High Performance Complex Mfg, Changsha 410083, Peoples R China.
通讯机构:
[Lin, Y. C.] Cent S Univ, Sch Mech & Elect Engn, Changsha 410083, Peoples R China.
语种:
英文
关键词:
Metals and alloys;Microstructure;Processing map
期刊:
Journal of Alloys and Compounds
ISSN:
0925-8388
年:
2013
卷:
550
页码:
438-445
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:材料科学;WOS学科类别:Chemistry, Physical;Materials Science, Multidisciplinary;Metallurgy & Metallurgical Engineering
入藏号:
WOS:000312149700071;EI:20125015778896
基金类别:
Program for New Century Excellent Talents in University [NCET-10-0838]; Sheng-hua Yu-ying Program, Fundamental Research Funds for the Central Universities of Central South University [2012zzts076]; Graduate Degree Thesis Innovation Foundation of Central South University, China [2011ssxt094]
机构署名:
本校为第一且通讯机构
院系归属:
机电工程学院
摘要:
The high-temperature flow behavior of 7075 aluminum alloy was studied by hot compressive tests. Based on the experimental data, the efficiencies of power dissipation and instability parameter were evaluated. Processing maps were constructed by superimposing the instability map over the power dissipation map. Microstructural evolution of 7075 aluminum alloy during the hot compression was analyzed to correlate with the processing maps. It can be found that the flow stresses increase with the increase of strain rate or the decrease of deformation temperature. The high-angle boundaries and coarse precipitations distributing in the grain interior/boundaries, which may result in the deep inter-granular corrosion and large areas of denudation layer, should be avoided in the final products. The optimum hot working domain is the temperature range of 623-723 K and strain rate range of 0.001-0.05 s<sup>-1</sup>. &copy;2012 Elsevier B.V. All rights reserved.
参考文献:
Abbasi SM, 2012, MAT SCI ENG A-STRUCT, V552, P330, DOI 10.1016/j.msea.2012.05.048
Ahamed H, 2012, MAT SCI ENG A-STRUCT, V539, P349, DOI 10.1016/j.msea.2012.01.109
Bradaskja B, 2011, STEEL RES INT, V82, P346, DOI 10.1002/srin.201000036
Chen F, 2012, MAT SCI ENG A-STRUCT, V540, P46, DOI 10.1016/j.msea.2012.01.061
Chen Xue-hai, 2011, Chinese Journal of Nonferrous Metals, V21, P88

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