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
ISSN1044-5803
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
DOI10.1016/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:1[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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