STUDY ON THE HOT DEFORMATION BEHAVIORS OF Al-Zn-Mg-Cu-Cr ALUMINUM ALLOY

金属学报(英文版), 2008, 21(2): 109-115.

^1, , ^2, , ^3, , ^4, , ^5,

1.School of Materials Science and Engineering, Central South University, Changsha 410083, China

2.School of Materials Science and Engineering, Central South University, Changsha 410083, China

3.School of Materials Science and Engineering, Central South University, Changsha 410083, China

4.School of Materials Science and Engineering, Central South University, Changsha 410083, China

5.School of Materials Science and Engineering, Central South University, Changsha 410083, China

基金项目: 国家重点基础研究发展计划(973计划)(G1999064908)

STUDY ON THE HOT DEFORMATION BEHAVIORS OF Al-Zn-Mg-Cu-Cr ALUMINUM ALLOY

G.Y. Lin ^1, , Z.F. Zhang ^2, , H. Zhang ^3, , D.S. Peng ^4, , J. Zhou ^5,

1.School of Materials Science and Engineering, Central South University, Changsha 410083, China

2.School of Materials Science and Engineering, Central South University, Changsha 410083, China

3.School of Materials Science and Engineering, Central South University, Changsha 410083, China

4.School of Materials Science and Engineering, Central South University, Changsha 410083, China

5.School of Materials Science and Engineering, Central South University, Changsha 410083, China

Keywords： Al-Zn-Mg-Cu-Cr aluminum alloy

The hot deformation behaviors and mierostructures of Al-Zn-Mg-Cu-Cr aluminum alloy have been studied using thermal simulation test, optical microscopy and transmission electron microscopy. As a result, the true stress versus true strain curves and the microstructures under various deformation conditions are obtained. The microstructures gradually incline to dynamic-recrystallization with the deformation temperature rising and the recrystallization grains refine with the decrease of deformation temperature or with raising the strain rates. The quantitative relationship between the Zener-HoUomon parameter (Z) and average recrystallization grain size in the subsequent heat treatment is set up.

参考文献

[1]	D Mathur;K Agarwal;R Shivpuri.[A].San Diego:TMS,2003:521.
[2]	张小明,张廷杰,马光来,田锋,李中奎,周廉.Limit of structure refinement for 7075 aluminum alloy at elevated temperature by hot deformation[J].中国有色金属学会会刊(英文版),2003(03):645-648.
[3]	E Cerri;E Evangelista;A Forcellese;H J McQueen .[J].Materials Science and Engineering A,1995,197:181.
[4]	林高用,张辉,郭武超,彭大暑.7075铝合金热压缩变形流变应力[J].中国有色金属学报,2001(03):412-415.
[5]	H. Zhang;G. Y. Lin;D. S. Peng;L. B. Yang;Q. Q. Lin .Dynamic and static softening behaviors of aluminum alloys during multistage hot deformation[J].Journal of Materials Processing Technology,2004(2):245-249.
[6]	Z.M.El-Baradi;M.E1-Sayed .[J].Journal of Materials Processing Technology,1996,62:76.
[7]	T K Saki;X Y Yang;H Miura .[J].Materials Science and Engineering A,1997,234-236:857.
[8]	Y.H. Zhao;X.Z. Liao;Y.T. Zhu .Enhanced mechanics! properties in ultrafine grained 7075 Al alloy[J].Journal of Materials Research,2005(2):288-291.
[9]	F.W.Panella;P.Cavaliere;R.Nobile .[J].International Journal of Machine Tools and Manufacture,2006,46:588.
[10]	M Baydogan;H Cimenoglu;E S Kayali.[A].San Antonio:TMS,2006:1.
[11]	M.P. Ciccone;R.P. Gangloff;R.G. Kelly .Test Environment Selection for Corrosion-Fatigue Testing of Aluminum Alloy 7075-T6[J].Corrosion: The Journal of Science and Engineering,2005(6):571-578.
[12]	M.A.Zaidi;T.Sheppard .[J].Metal Science Journal,1982,16:229.
[13]	H.Shi;A.J.Mclaren;C.M.Sellars .[J].Materials Science and Technology,1997,13:210.
[14]	S.Martin;I.Gutierrez;J.J.Urcola .[J].Materials Science and Technology,1993,9:874.
[15]	N.Raghunathan;T.Sheppard .[J].Materials Science and Technology,1989,5:194.
[16]	E.A. Badawi;M.A. Abdel-Rahman;M.S. Abdellah .Activation Energy (Migration Defects) in 7075 Aircraft Alloys by Positron Annihilation Lifetime Technique (PALT)[J].Materials Science Forum,2006(Pt.2):1397-1401.
[17]	B.K.Chen;P.F.Thomson;S.K.Choi .[J].Materials Science and Technology,1992,8:72.
[18]	F.R.Castro-Fernandez;C.M.Sellars;J.A.Whiteman .[J].Materials Science and Technology,1990,6:453.
[19]	T.Sheppard;A.Jackson .[J].Materials Science and Technology,1997,13:203.

上一张下一张

计量

下载量()
访问量()

作者相关

在本站搜索
在百度学术搜索
在万方数据库搜索
在CNKI搜索

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

STUDY ON THE HOT DEFORMATION BEHAVIORS OF Al-Zn-Mg-Cu-Cr ALUMINUM ALLOY

参考文献