Evolution of carbide precipitates in Hastelloy N joints during welding and post weld heat treatment

doi:10.1016/j.matchar.2017.11.045

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	Evolution of carbide precipitates in Hastelloy N joints during welding and post weld heat treatment
	Wang, WX ; Li, CW ; Jiang, L ; Ye, XX ; Yu, K ; Chen, SJ ; Li, ZJ ; Zhou, XT
	2018
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	135 页码:311-316
文章类型	期刊论文
摘要	The effects of welding and post weld heat treatment (PWHT) on the morphology, composition and lattice parameter of the precipitates in the welding joints of Hastelloy N alloy have been investigated. Joint samples were prepared using a gas tungsten arc welding process with ERNiMo-2 fillers, and then solid-solution treated at 1100 degrees C for 20 min. After welding, eutectic M6C carbides can be observed in the heat affected zones (HAZ) and weld zones (WZ). These eutectic M6C carbides become spheroidized during the following PWHT. The concentration of Si decreases during the transformation from the primary ones to eutectic ones, and then increases during the spheroidizing process. The total concentration of Si + Cr in M6C carbides remains stable during welding and PWHT. At the same time, the heat leads to the outward diffusion of Mo from the M6C carbides, which results in a decrease of the lattice parameter.
关键词	Mo-cr Superalloy Term Thermal Exposure Affected Zone Mechanical-properties Gh3535 Superalloy M6c Carbide Microstructure Steel Alloy Temperature
DOI	10.1016/j.matchar.2017.11.045
收录类别	SCI
语种	英语
WOS记录号	WOS:000423248200037
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/29009
专题	中科院上海应用物理研究所2011-2018年
作者单位	1.Wang, WX 2.Li, CW 3.Jiang, L 4.Ye, XX 5.Yu, K 6.Chen, SJ 7.Li, ZJ 8.Zhou, XT
推荐引用方式 GB/T 7714	Wang, WX,Li, CW,Jiang, L,et al. Evolution of carbide precipitates in Hastelloy N joints during welding and post weld heat treatment[J]. MATERIALS CHARACTERIZATION,2018,135:311-316.
APA	Wang, WX.,Li, CW.,Jiang, L.,Ye, XX.,Yu, K.,...&Zhou, XT.(2018).Evolution of carbide precipitates in Hastelloy N joints during welding and post weld heat treatment.MATERIALS CHARACTERIZATION,135,311-316.
MLA	Wang, WX,et al."Evolution of carbide precipitates in Hastelloy N joints during welding and post weld heat treatment".MATERIALS CHARACTERIZATION 135(2018):311-316.

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