Microstructure and Mechanical Properties of GH3039 Fabricated by Wire Arc Additive Manufacturing

被引：0

作者：

Fang Qian ^{[1
,2
]}

Zhao Lin ^{[2
]}

Zhang Dayue ^{[3
]}

Chen Cuixin ^{[1
]}

Tian Zhiling ^{[2
]}

Yin Fuxing ^{[1
]}

机构：

[1] Hebei Univ Technol, Tianjin 300130, Peoples R China

[2] Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China

[3] Ansteel Beijing Res Inst, Beijing 102209, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2022年 / 51卷 / 03期

关键词：

nickel based superalloy; WAAM; mechanical properties; microstructure; ORIENTATION;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

GH3039 thin wall part was fabricated by wire arc additive manufacturing based on gas metal arc welding (GMAW-WAAM). Microstructure and mechanical properties of the part were investigated by OM, microhardness indentation, and tensile test. Results show that the defect-free dense part is mainly composed of interlayer fine grains and coarse column grains, which grows vertically. The ambient temperature ultimate tensile strength (UTS) and fracture elongation (El) of the as deposited part are 5 19 similar to 540 MPa and 35.9%similar to 39.6%, respectively. The elevated temperature (800 degrees C) UTS and El along the deposition direction are 189 MPa and 35.4%, respectively. This study verifies the feasibility of manufacturing GH3039 part by GMAW-WAAM.

引用

页码：1141 / 1144

页数：4

共 13 条

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