THE EFFECT OF SILICON ON THE MICROSTRUCTURE AND SEGREGATION OF DIRECTIONALLY SOLIDIFIED IN738 SUPERALLOY

IMR OpenIR

	THE EFFECT OF SILICON ON THE MICROSTRUCTURE AND SEGREGATION OF DIRECTIONALLY SOLIDIFIED IN738 SUPERALLOY
	H. Q. Zhu; S. R. Guo; H. R. Guan; Y. X. Zhu; Z. Q. Hu; Y. Murata; M. Morinaga
	1994
发表期刊	Materials at High Temperatures
ISSN	0960-3409
卷号	12 期号:4 页码:285-291
摘要	The effect of silicon on the microstructure and solidification segregation of directionally solidified IN738 nickel-based superalloy was studied. Directional solidification at various solidification rates and partial directional solidification plus rapid quenching were applied. Metallographic analysis and an electron microprobe were mainly used to observe and measure the microstructure and elemental segregation of the alloy, respectively. It was found that silicon affected the morphology of the liquid-solid interface of the alloy during solidification and gave the alloy a tendency to form well-developed dendrites. The addition of silicon enlarged the solidus-liquidus temperature interval, and the solidification rate also greatly influenced the interval. The interval increased with increasing solidification rate. Silicon promoted the precipitation of the gamma/gamma' eutectic, and also affected its precipitation temperature. Silicon segregated mainly in interdendritic regions, and promoted the segregation of other elements. All of the effects of silicon on the alloy related to the solidification rate.
部门归属	toyohashi univ technol,toyohashi 441,japan.;zhu, hq (reprint author), acad sinica,inst met res,shenyang 110015,peoples r china
关键词	Silicon Solidification Segregation
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38989
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Q. Zhu,S. R. Guo,H. R. Guan,et al. THE EFFECT OF SILICON ON THE MICROSTRUCTURE AND SEGREGATION OF DIRECTIONALLY SOLIDIFIED IN738 SUPERALLOY[J]. Materials at High Temperatures,1994,12(4):285-291.
APA	H. Q. Zhu.,S. R. Guo.,H. R. Guan.,Y. X. Zhu.,Z. Q. Hu.,...&M. Morinaga.(1994).THE EFFECT OF SILICON ON THE MICROSTRUCTURE AND SEGREGATION OF DIRECTIONALLY SOLIDIFIED IN738 SUPERALLOY.Materials at High Temperatures,12(4),285-291.
MLA	H. Q. Zhu,et al."THE EFFECT OF SILICON ON THE MICROSTRUCTURE AND SEGREGATION OF DIRECTIONALLY SOLIDIFIED IN738 SUPERALLOY".Materials at High Temperatures 12.4(1994):285-291.