Coarsening Behavior of Al(3)(Sc, Zr) Precipitates and Its Influence on Recrystallization Temperature of Al-Mg-Sc-Zr Alloy

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	Coarsening Behavior of Al(3)(Sc, Zr) Precipitates and Its Influence on Recrystallization Temperature of Al-Mg-Sc-Zr Alloy
	G. Du; J. W. Deng; D. S. Yan; M. J. Zhao; L. J. Rong
	2009
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	25 期号:6 页码:749-752
摘要	Effects of intermediate annealing temperature and time after hot working on recrystallization temperature (T(r)) of Al-Mg-Sc-Zr alloy subjected to further cold working were investigated. It was found that Tr of cold worked alloy dropped with the rise of intermediate annealing temperature or extension of annealing time, due to coarsening of Al(3)(Sc, Zr) particles during intermediate annealing. After annealed at 550 degrees C for 1 h or 475 degrees C for 50 h, T, is nearly same as that in a Sc, Zr free 5A06 alloy. Coarsening mechanism was also discussed. After hot rolling, residual dislocations promoted diffusion of Sc and Zr atoms at the elevated temperature of the intermediate annealing. Easier diffusion sped the growth of the Al(3)(Sc, Zr) particles, resulting in a coherency loss and quantity reduction of the particles.
部门归属	[du, gang; deng, jingwei; yan, desheng; zhao, mingjiu; rong, lijian] chinese acad sci, inst met res, shenyang 110016, peoples r china.;rong, lj (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;ljrong@imr.ac.cn
关键词	Al(3)(Sc Zr) Precipitates Coarsening Recrystallization Diffusion Al3sc
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31876
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. Du,J. W. Deng,D. S. Yan,et al. Coarsening Behavior of Al(3)(Sc, Zr) Precipitates and Its Influence on Recrystallization Temperature of Al-Mg-Sc-Zr Alloy[J]. Journal of Materials Science & Technology,2009,25(6):749-752.
APA	G. Du,J. W. Deng,D. S. Yan,M. J. Zhao,&L. J. Rong.(2009).Coarsening Behavior of Al(3)(Sc, Zr) Precipitates and Its Influence on Recrystallization Temperature of Al-Mg-Sc-Zr Alloy.Journal of Materials Science & Technology,25(6),749-752.
MLA	G. Du,et al."Coarsening Behavior of Al(3)(Sc, Zr) Precipitates and Its Influence on Recrystallization Temperature of Al-Mg-Sc-Zr Alloy".Journal of Materials Science & Technology 25.6(2009):749-752.