Microstructure observation of naturally aged thixoforming ZA27 alloy

doi:10.1590/1516-1439.050015

	Microstructure observation of naturally aged thixoforming ZA27 alloy
	Chen, Ti Jun; Zhao, Hai Jing; Ma, Ying; Hao, Yuan
	2015-11-01
发表期刊	Materials Research
ISSN	15161439
卷号	18 期号:6 页码:1322-1330
摘要	The microstructure of the thixoformed ZA27 alloy naturally aged for 5 years has been observed and analyzed. The results indicate that most of the original ? + ? laminar eutectics have changed into the structures that small ? particles uniformly distribute in ? phase matrix. Both the ? phase and ?' phase have also decomposed. It is suggested that a continuous or dot-line ? phase first precipitates in the ? phase close to the eutectic ? phase layer. Then eutectoid ? phase nucleates or directly grows up from the eutectic ? phase, which promotes the nucleation of eutectoid ? phase or the direct growth of the ? phase from the existing ? phase. Subsequently, the resulting ? + ? phases grow towards the ? phase inside, forming the regular laminar ? + ? structures. The laminar structures always continuously grow across the center ?' phase, which leads the ?' phase also to transform into regular ? + ? laminar structures. The laminar structures may crack possibly due to internal stress. The eutectoid ? phase lamellae have a tendency of changing from laminar shape to particle form, resulting in the formation of non-laminar structures.
关键词	Eutectics Ageing Direct growth Laminar structure Microstructure observation Naturally aged Particle forms Thixo-forming ZA27 alloys
DOI	10.1590/1516-1439.050015
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000367150700023
出版者	Universidade Federal de Sao Carlos
EI入藏号	20160902004716
EI主题词	Microstructure
EI分类号	531.2 Metallography ; 951 Materials Science
来源库	Compendex
分类代码	531.2 Metallography - 951 Materials Science
引用统计	被引频次[WOS]：0 [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/112310
专题	材料科学与工程学院
通讯作者	Chen, Ti Jun
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位	省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Chen, Ti Jun,Zhao, Hai Jing,Ma, Ying,et al. Microstructure observation of naturally aged thixoforming ZA27 alloy[J]. Materials Research,2015,18(6):1322-1330.
APA	Chen, Ti Jun,Zhao, Hai Jing,Ma, Ying,&Hao, Yuan.(2015).Microstructure observation of naturally aged thixoforming ZA27 alloy.Materials Research,18(6),1322-1330.
MLA	Chen, Ti Jun,et al."Microstructure observation of naturally aged thixoforming ZA27 alloy".Materials Research 18.6(2015):1322-1330.