Microstructure and Mechanical Properties of Layered Billets from Various Grades of Austenitic Steels Grown by Additive Electric Arc Welding

IF 0.6 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metal Science and Heat Treatment Pub Date : 2024-10-14 DOI:10.1007/s11041-024-01059-5

Yu. G. Kabaldin, D. A. Shatagin, M. A. Chernigin, M. S. Anosov

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Abstract

The authors studied the possibility of using the wire arc additive manufacturing (WAAM) technology for creating blanks by gradually depositing layers of three grades of stainless steel using a wire. Metallographic studies, ferromagnetic analysis, tensile and fatigue tests were carried out. It has been established that the chemical composition of the utilized grades of stainless steel has a significant effect on the morphology and degree of development of dendrites formed during the deposition process. The absence of incomplete fusion and other technological defects at the weld bead interface promoted the possibility of using WAAM to create biand tri-metal deposits. The analysis of the fracture surfaces of the samples confirmed the high quality of fusion of various grades of austenitic steels with each other and the uniformity of the deposited metal. The presence of ferromagnetic phases in the samples immediately after the additive process is significantly lower than the calculated values for steel 07Cr25Ni13 and practically reaches the values that are characteristic for this steel after heat treatment.

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通过增材电弧焊接生长的不同等级奥氏体钢层坯的显微结构和力学性能

作者研究了使用线弧快速成型（WAAM）技术的可能性，该技术通过使用金属丝逐渐沉积三种等级的不锈钢层来制造坯件。研究人员进行了金相研究、铁磁分析、拉伸和疲劳测试。结果表明，所使用的不锈钢等级的化学成分对沉积过程中形成的树枝状晶粒的形态和发展程度有显著影响。焊珠界面没有不完全熔合和其他技术缺陷，这为使用 WAAM 生成双金属和三金属熔敷提供了可能性。对样品断裂面的分析证实，各种牌号的奥氏体钢相互融合的质量很高，熔敷金属也很均匀。添加工艺后样品中铁磁相的存在明显低于 07Cr25Ni13 钢的计算值，并在热处理后几乎达到了该钢的特征值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Metal Science and Heat Treatment 工程技术-冶金工程

CiteScore

1.20

自引率

16.70%

发文量

102

审稿时长

4-8 weeks

期刊介绍： Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering. Topics covered include: New structural, high temperature, tool and precision steels; Cold-resistant, corrosion-resistant and radiation-resistant steels; Steels with rapid decline of induced properties; Alloys with shape memory effect; Bulk-amorphyzable metal alloys; Microcrystalline alloys; Nano materials and foam materials for medical use.