用耐氢钢焊丝通过气体保护电弧焊进行增材制造的微观结构和性能

IF 2.4 4区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Welding in the World Pub Date : 2024-10-07 DOI:10.1007/s40194-024-01835-0

Guo Chun, Zhang XinYu, Li WenQing, Li Yun, Chen YanYan, Huang GuangCan, Lin QingCheng

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引用次数: 0

摘要

在 WAAM 技术中使用了氢钢气体保护焊丝，并对分层沉积生成的部件的微观结构、晶体结构和性能进行了分析和评估。研究结果表明，部件质量良好，无明显缺陷，内部冶金结合牢固。金相结构主要由珠光体和铁素体组成。部件的显微硬度分布相当一致，平均显微硬度值为 196.6 HV0.1（横向）和 196.7 HV0.1（纵向）。零件具有优异的机械性能，横向屈服强度为 406 兆帕，伸长率为 14.2%，纵向屈服强度为 380 兆帕，伸长率为 18.9%。在零下 30 °C，平均横向夏比冲击值为 95.7 J，平均纵向为 117 J。

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Microstructure and properties of additive manufacturing by gas-shielded arc welding with hydrogen-resistant steel wires

The hydrogen steel gas-shielded welding wire was utilized in the WAAM technique, and the microstructure, crystal structure, and properties of the parts generated by layer-wise deposition were analyzed and evaluated. The study revealed that the components exhibit good quality, devoid of significant defects, and demonstrate robust internal metallurgical bonding. The metallographic structure mainly consists of pearlite and ferrite. The distribution of microhardness in the parts is fairly consistent, with mean microhardness values of 196.6 HV_0.1 (transverse) and 196.7 HV_0.1 (longitudinal). The parts exhibit exceptional mechanical properties, with a transverse yield strength of 406 MPa, an elongation rate of 14.2%, and a longitudinal yield strength of 380 MPa, an elongation rate of 18.9%. At − 30 °C, the average transverse Charpy impact value is 95.7 J, and the average longitudinal is 117 J.

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来源期刊

Welding in the World METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

4.20

自引率

14.30%

发文量

181

审稿时长

6-12 weeks

期刊介绍： The journal Welding in the World publishes authoritative papers on every aspect of materials joining, including welding, brazing, soldering, cutting, thermal spraying and allied joining and fabrication techniques.