CAS OpenIR  > 中科院上海应用物理研究所2011-2019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
Source PublicationMATERIALS CHARACTERIZATION
ISSN1044-5803
Volume135Pages:311-316
Subtype期刊论文
AbstractThe 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.
KeywordMo-cr Superalloy Term Thermal Exposure Affected Zone Mechanical-properties Gh3535 Superalloy M6c Carbide Microstructure Steel Alloy Temperature
DOI10.1016/j.matchar.2017.11.045
Indexed BySCI
Language英语
WOS IDWOS:000423248200037
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/29009
Collection中科院上海应用物理研究所2011-2019年
Affiliation1.Wang, WX
2.Li, CW
3.Jiang, L
4.Ye, XX
5.Yu, K
6.Chen, SJ
7.Li, ZJ
8.Zhou, XT
Recommended Citation
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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