Microstructural evolution of predeformed SiCp/ZA27 composites during partial remelting

doi:10.1007/s11661-004-0156-y

	Microstructural evolution of predeformed SiCp/ZA27 composites during partial remelting
	Chen, TJ ; Hao, Y ; Sun, J
刊名	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
	2004-07
卷号	35A 期号:7 页码:2073-2085
关键词	Aluminum alloys Coalescence Compaction Heating Metallographic microstructure Particle size analysis Phase equilibria Preforming Remelting Silicon carbide Textures Thermal effects Microstructural evolution Partial remelting Rapid coarsening Semisolid forming Spheroidization Structural separation Texture cells
ISSN号	1073-5623
DOI	10.1007/s11661-004-0156-y
英文摘要	The microstructural evolution process in SiC particle (SiCp)-reinforced ZA27 composites, previously compressed by different lengths at 270 degreesC, was investigated during partial remelting. The results indicated that, after being compressed, the microstructure of SiCp/ZA27 composites changed gradually from developed primary alpha dendrites, to coarsened short dendrites, and then to a structure consisting of texture cells with different orientations with increasing compression. During subsequent partial remelting, the microstructure evolution exhibited four stages: initial rapid coarsening, structural separation, spheroidization, and final coarsening. The change of the primary a particle size with the heating time obeyed the law developed by Lifshitz and Slyosov and Wagner (LSW) after the semisolid system was up to the dynamic solid-liquid equilibrium state. High compression, high remelting temperature, and large size and proper content of SiC(p)s were beneficial to achieving a desirable structure for semisolid forming (SSF). The primary a particle size distribution was significantly affected by coalescence. These phenomena were extensively discussed metallographically and theoretically.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	MINERALS METALS MATERIALS SOC
WOS记录号	WOS:000222295900017
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/35848]
专题	材料科学与工程学院
通讯作者	Chen, TJ
作者单位	1.Lanzhou Univ Technol, State Key Kab Adv Nonferrous Mat, Lanzhou 730050, Peoples R China 2.Xian Jiaotong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China 3.Lanzhou Univ Technol, State Key Lab Gansu New Nonferrous Met Mat, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Chen, TJ,Hao, Y,Sun, J. Microstructural evolution of predeformed SiCp/ZA27 composites during partial remelting[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2004,35A(7):2073-2085.
APA	Chen, TJ,Hao, Y,&Sun, J.(2004).Microstructural evolution of predeformed SiCp/ZA27 composites during partial remelting.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,35A(7),2073-2085.
MLA	Chen, TJ,et al."Microstructural evolution of predeformed SiCp/ZA27 composites during partial remelting".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 35A.7(2004):2073-2085.