Achieving ultra-fine grains in AZ61 Mg alloy by friction stir processing

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	Achieving ultra-fine grains in AZ61 Mg alloy by friction stir processing; Achieving ultra-fine grains in AZ61 Mg alloy by friction stir processing
	X. H. Du; E. L. Zhang; B. L. Wu
	2008 ; 2008
发表期刊	International Journal of Materials Research ; International Journal of Materials Research
ISSN	1862-5282 ; 1862-5282
卷号	99 期号:12 页码:1375-1378
摘要	In order to obtain fine-microstructure magnesium alloys with superior mechanical properties, AZ61 alloy is processed by friction stir processing combined with rapid heat sinking in this study. Ultrafine-grain microstructure with average size less than 300 nm was observed in the resultant AZ61 alloy. The mean microhardness of the ultrafine-grain region reached 120 similar to 130 HV, twice that of the AZ61 substrate. All these results demonstrate clearly that under a cooling rate high enough, ultrafine-grain Structure in AZ61 alloy with superior mechanical properties can be produced by one pass friction stir processing via dynamic recrystallization.; In order to obtain fine-microstructure magnesium alloys with superior mechanical properties, AZ61 alloy is processed by friction stir processing combined with rapid heat sinking in this study. Ultrafine-grain microstructure with average size less than 300 nm was observed in the resultant AZ61 alloy. The mean microhardness of the ultrafine-grain region reached 120 similar to 130 HV, twice that of the AZ61 substrate. All these results demonstrate clearly that under a cooling rate high enough, ultrafine-grain Structure in AZ61 alloy with superior mechanical properties can be produced by one pass friction stir processing via dynamic recrystallization.
部门归属	[du, xinghao; wu, baolin] shenyang inst aeronaut engn, dept mat engn, shenyang 110034, peoples r china. [zhang, erlin] chinese acad sci, inst met res, shenyang, peoples r china.;du, xh (reprint author), shenyang inst aeronaut engn, dept mat engn, shenyang 110034, peoples r china;xhdu@alumni.nsysu.edu.tw ; [du, xinghao; wu, baolin] shenyang inst aeronaut engn, dept mat engn, shenyang 110034, peoples r china. [zhang, erlin] chinese acad sci, inst met res, shenyang, peoples r china.;du, xh (reprint author), shenyang inst aeronaut engn, dept mat engn, shenyang 110034, peoples r china;xhdu@alumni.nsysu.edu.tw
关键词	Magnesium Based Alloys Magnesium Based Alloys Az61 Alloy Az61 Alloy Friction Stir Processing Friction Stir Processing Ultrafine-grain Microstructure Ultrafine-grain Microstructure Magnesium Alloy Magnesium Alloy Mechanical-properties Mechanical-properties Superplasticity Superplasticity Deformation Deformation Temperature Temperature Refinement Refinement Extrusion Extrusion Size Size Ecap Ecap
URL	查看原文 ; 查看原文
WOS记录号	WOS:000262320100011 ; WOS:000262320100011
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32724
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. H. Du,E. L. Zhang,B. L. Wu. Achieving ultra-fine grains in AZ61 Mg alloy by friction stir processing, Achieving ultra-fine grains in AZ61 Mg alloy by friction stir processing[J]. International Journal of Materials Research, International Journal of Materials Research,2008, 2008,99, 99(12):1375-1378, 1375-1378.
APA	X. H. Du,E. L. Zhang,&B. L. Wu.(2008).Achieving ultra-fine grains in AZ61 Mg alloy by friction stir processing.International Journal of Materials Research,99(12),1375-1378.
MLA	X. H. Du,et al."Achieving ultra-fine grains in AZ61 Mg alloy by friction stir processing".International Journal of Materials Research 99.12(2008):1375-1378.