Effect of Tungsten Inert Gas Welding Parameters on Hot Crack Sensitivity of Cast Magnesium Alloy

被引：8

作者：

Chen, Yi ^{[1
]}

Fan, Chenglei ^{[1
]}

Lin, Sanbao ^{[1
]}

Yang, Chunli ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, 92 Xidazhi St, Harbin 150001, Peoples R China

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2023年 / 32卷 / 03期

基金：

中国国家自然科学基金;

关键词：

hot crack; houldcroft crack test; magnesium; welding; TEARING SUSCEPTIBILITY; SOLIDIFICATION CRACKING; NUMERICAL-ANALYSIS; AZ61;

D O I：

10.1007/s11665-022-07192-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnesium alloys play important role in weight loss because of its high specific strength, most of magnesium alloy components are casting. Magnesium alloys have high hot crack sensitivity during casting and welding. Tungsten inert gas (TIG) welding parameters have great effects on hot crack sensitivity, which is important for welding and repairing alloys. However, few studies have been conducted in this regard. In this study, cracks in cast magnesium alloy AZ91D during TIG welding are examined and confirmed to be hot cracks. Different restraint and radiating conditions caused by structural affect the initiation and morphology of the hot cracks. The effect of TIG welding process parameters on thermal crack susceptibility was studied by Houldcroft crack test. Results reveal that welding parameters would significantly affect the crack length of the Houldcroft crack test specimens. Welding current and welding speed have complex and interactive effects on crack susceptibility. The present study has good effect on the magnesium alloy welding process development.

引用

页码：1382 / 1389

页数：8

共 30 条

[1]

Adamiec J., 2010, 11 WORKSHOP EUROPEAN

[2] Investigation of solidification cracking susceptibility during laser beam welding using an in-situ observation technique [J].

Bakir, Nasim ;

Gumenyuk, Andrey ;

Rethmeier, Michael .

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2018, 23 (03) :234-240

[3]

Chai X, 2016, WELD J, V95, p57S

[4] Development of strength in solidifying aluminium alloys [J].

Dahle, AK ;

Arnberg, L .

ACTA MATERIALIA, 1997, 45 (02) :547-559

[5] Effect of TiBor on the grain refinement and hot tearing susceptibility of AZ91D magnesium alloy [J].

Davis, T. A. ;

Bichler, L. ;

D'Elia, F. ;

Hort, N. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 759 :70-79

[6] Research for a "new age of magnesium" in the automotive industry [J].

Friedrich, H ;

Schumann, S .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2001, 117 (03) :276-281

[7] Study on the Coupling Behavior and Micro-Mechanism of Solidification and Hot Tearing of Mg-xZn-2xGd Alloys [J].

Fu, Xiaoqing ;

Liu, Shimeng ;

Zhou, Le ;

Liu, Zheng ;

Wei, Ziqi ;

Guo, Hui .

INTERNATIONAL JOURNAL OF METALCASTING, 2021, 15 (04) :1175-1183

[8] Strain signatures associated to the formation of hot cracks during laser beam welding of aluminum alloys [J].

Hagenlocher, Christian ;

Stritt, Peter ;

Weber, Rudolf ;

Graf, Thomas .

OPTICS AND LASERS IN ENGINEERING, 2018, 100 :131-140

[9] The Influence of Aluminum Content of AZ61 and AZ80 Magnesium Alloys on Hot Cracking [J].

Huang, C. J. ;

Cheng, C. M. ;

Chou, C. P. .

MATERIALS AND MANUFACTURING PROCESSES, 2011, 26 (09) :1179-1187

[10] Hot Cracking in AZ31 and AZ61 Magnesium Alloy [J].

Huang, C. J. ;

Cheng, C. M. ;

Chou, C. P. ;

Chen, F. H. .

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2011, 27 (07) :633-640

← 1 2 3 →