Effect of ECAE conditions on the microstructure, texture and mechanical properties of an extruded Mg-Zn-Y-Zr alloy

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	Effect of ECAE conditions on the microstructure, texture and mechanical properties of an extruded Mg-Zn-Y-Zr alloy
	W. N. Tang; R. S. Chen; J. Zhou; E. H. Han
	2010
发表期刊	International Journal of Materials Research
ISSN	1862-5282
卷号	101 期号:3 页码:409-416
摘要	Equal channel angular extrusion (ECAE) experiments of an extruded Mg-Zn-Y-Zr alloy with an intense basal texture were performed up to 8 passes at 250 and 350 degrees C through route Bc (billets with a rotation of 90 in the same direction between passes) and route A (without rotation between passes). It was found that under these ECAE conditions significant grain refinement was achieved. The initial texture of the alloy gradually altered as the number of ECAE passes increased. The ductility of the alloy was improved in all the cases after eight passes. The yield strength of the alloy ECAEed through route Bc considerably decreased with the passes increasing, as a result of the formation of the texture component with the basal planes inclined at about 45 to the ECAE direction. The yield strength of the material ECAEed at 250 degrees C with a finer grain structure was considerably lower than that at 350 degrees C with a coarser grain structure. This abnormal phenomenon was attributed to more crystals in the former being oriented to be more favorable for basal slip.
部门归属	[tang, w. n.; chen, r. s.; han, e. h.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, liaoning prov, peoples r china. [zhou, j.] delft univ technol, dept mat sci & engn, delft, netherlands. [tang, w. n.] chinese acad sci, grad sch, beijing, peoples r china.;chen, rs (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, liaoning prov, peoples r china;rongshichen@yahoo.com
关键词	Mg-zn-y-zr Alloy Equal Channel Angular Extrusion (Ecae) Microstructure Texture Mechanical Properties Az31 Magnesium Alloy Channel Angular Extrusion Deformation-behavior Tensile Properties Grain-refinement Temperature Ductility
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WOS记录号	WOS:000276612700014
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31473
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. N. Tang,R. S. Chen,J. Zhou,et al. Effect of ECAE conditions on the microstructure, texture and mechanical properties of an extruded Mg-Zn-Y-Zr alloy[J]. International Journal of Materials Research,2010,101(3):409-416.
APA	W. N. Tang,R. S. Chen,J. Zhou,&E. H. Han.(2010).Effect of ECAE conditions on the microstructure, texture and mechanical properties of an extruded Mg-Zn-Y-Zr alloy.International Journal of Materials Research,101(3),409-416.
MLA	W. N. Tang,et al."Effect of ECAE conditions on the microstructure, texture and mechanical properties of an extruded Mg-Zn-Y-Zr alloy".International Journal of Materials Research 101.3(2010):409-416.