Microstructure and mechanical properties of GH3535 superalloy joints using keyhole TIG welding

被引：4

作者：

Fang, Huisheng ^{[1
,2
]}

Li, Zhijun ^{[2
]}

Yuan, Xiaodan ^{[2
]}

Liu, Fang ^{[1
]}

Zhu, Qingchun ^{[2
]}

Yan, Dezhong ^{[2
]}

Liang, Jianping ^{[2
]}

机构：

[1] Univ Shanghai Sci & Technol, Sch Mat Sci & Engn, Shanghai, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai, Peoples R China

来源：

NUCLEAR ENGINEERING AND DESIGN | 2025年 / 432卷

基金：

中国国家自然科学基金;

关键词：

Keyhole TIG welding GH3535 superalloy; single-pass welding microstructure mechanical; property; HEAT-AFFECTED ZONE; THERMAL CYCLE; WELDED-JOINT; PRECIPITATION; TRANSITION; EVOLUTION;

D O I：

10.1016/j.nucengdes.2024.113780

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Single-pass keyhole TIG welding (K-TIG) was used to weld 10-mm-thick GH3535 superalloy plates without filler metal and groove preparation. The microstructure and mechanical properties of GH3535 superalloy welded joints were investigated. The results show that columnar crystals symmetrically grow in the fusion zone (FZ) and the contact angle between the symmetric columnar crystals is approximately 115 degrees. A few eutectic phases of M6C- gamma are observed in a partially melted zone (PMZ) of the heat-affected zone (HAZ). The microhardness of HAZ is higher than that of FZ and the base metal (BM). The tensile strength of joints at room temperature, 650 degrees C, and 700 degrees C were 98%, 101%, and 99% of the BM, respectively. The results show that K-TIG welding is suitable for joining middle-thick GH3535 superalloy plates.

引用

页数：11

共 45 条

[11] Investigation into the viability of K-TIG for joining armour grade quenched and tempered steel [J].

Fei, Zhenyu ;

Pan, Zengxi ;

Cuiuri, Dominic ;

Li, Huijun ;

Wu, Bintao ;

Ding, Donghong ;

Su, Lihong ;

Gazder, Azdiar A. .

JOURNAL OF MANUFACTURING PROCESSES, 2018, 32 :482-493

[12] Keyhole gas tungsten arc welding of AISI 316L stainless steel [J].

Feng, Yueqiao ;

Luo, Zhen ;

Liu, Zuming ;

Li, Yang ;

Luo, Yucan ;

Huang, Yongxian .

MATERIALS & DESIGN, 2015, 85 :24-31

[13] The tensile behavior of GH3535 superalloy at elevated temperature [J].

Han, F. F. ;

Zhou, B. M. ;

Huang, H. F. ;

Leng, B. ;

Lu, Y. L. ;

Dong, J. S. ;

Li, Z. J. ;

Zhou, X. T. .

MATERIALS CHEMISTRY AND PHYSICS, 2016, 182 :22-31

[14] Th-U cycle performance analysis based on molten chloride salt and molten fluoride salt fast reactors [J].

He, Liao-Yuan ;

Xia, Shao-Peng ;

Zhou, Xue-Mei ;

Chen, Jin-Gen ;

Liu, Gui-Min ;

Zou, Yang ;

Yan, Rui .

NUCLEAR SCIENCE AND TECHNIQUES, 2020, 31 (08)

[15] Characterization of the Ni-Mo-Cr superalloy subjected to simulated heat-affected zone thermal cycle treatment [J].

He, Yanming ;

Yang, Jianguo ;

Qin, Chunjie ;

Chen, Shuangjian ;

Gao, Zengliang .

JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 643 :7-16

[16] Research on the Activating Flux Gas Tungsten Arc Welding and Plasma Arc Welding for Stainless Steel [J].

Huang, Her-Yueh .

METALS AND MATERIALS INTERNATIONAL, 2010, 16 (05) :819-825

[17]

Jarvis B.L., 2001, KEYHOLE GAS TUNGSTEN

[18] Synchrotron radiation-based materials characterization techniques shed light on molten salt reactor alloys [J].

Jiang, Li ;

Ye, Xiang-Xi ;

Wang, De-Jun ;

Li, Zhi-Jun .

NUCLEAR SCIENCE AND TECHNIQUES, 2019, 31 (01)

[19] M2C and M6C carbide precipitation in Ni-Mo-Cr based superalloys containing silicon [J].

Jiang, Li ;

Zhang, Wen-Zhu ;

Xu, Zhou-Feng ;

Huang, He-Fei ;

Ye, Xiang-Xi ;

Leng, Bin ;

Yan, Long ;

Li, Zhi-Jun ;

Zhou, Xing-Tai .

MATERIALS & DESIGN, 2016, 112 :300-308

[20]

Jiang M., 2012, Bull. Chin. Acad. Sci., V27, P366, DOI DOI 10.3969/J.ISSN.1000-3045.2012.03.016

← 1 2 3 4 5 →