Microstructures and Mechanical Properties of 30CrMnSiA Steel Joints Welded by Vacuum Electron Beam

被引：3
|
作者：
Wang, Shan-Lin [1 ,2 ]
Chen, Shan-Ben [1 ]
Li, Xing [2 ]
Wan, Li-Peng [3 ]
机构：
[1] Shanghai Jiao Tong Univ, Intelligentized Robot Welding Technol Lab, Shanghai 200240, Peoples R China
[2] Nanchang Hangkong Univ, Sch Aeronaut Mfg Engn, Nanchang 330063, Peoples R China
[3] AVIC Jiangxi Hongdou Aviat Ind Grp Corp Ltd, Nanchang 330024, Peoples R China
来源：
ROBOTIC WELDING, INTELLIGENCE AND AUTOMATION, RWIA'2014 | 2015年 / 363卷
关键词：
D O I：
10.1007/978-3-319-18997-0_49
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The 30CrMnSiA plate with 2 mm thickness which is applied extensively in aerospace industry was welded by vacuum electron beam, and the microstructures and mechanical properties of joint were investigated. The results indicate that a well-formed joint can fabricated by vacuum electron beam with various welding parameters. Due to intensive heat and rapid cooling rate, the typical lath martensite is formed in fusion zone and the grains in the narrow heat affected zone are grown greatly. The microhardness and tensile strength of joint exceed to 600 Hv and 1400 MPa, respectively, which are extensively higher than that of basic metal. The fracture is occurred in the heat affected zone during tensile experiment.
引用
收藏
页码：571 / 580
页数：10
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