摩擦焊接 SUS316L 合金中强化晶粒细化的影响

IF 0.7 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Archives of Metallurgy and Materials Pub Date : 2024-04-09 DOI:10.24425/amm.2024.147785

Youngkyu Kim, Kukhyun Song

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引用次数: 0

摘要

为了研究 SUS316L 合金的固态焊接性，我们开展了这项工作。作为固态焊接的摩擦焊被引入，并在 2,000 rpm 的旋转速度和 25 MPa 的摩擦压力下对管型试样进行了焊接。这项工作结束后，通过电子反向散射衍射法明确了焊缝的晶界特征分布，如晶粒大小、形状和错位角。在 SUS316L 上进行摩擦焊接后，焊缝区域的晶粒尺寸（6.03 μm）与母材的晶粒尺寸（57.55 μm）相比明显细化。尽管晶粒细化，但焊缝的机械性能相对较低或与母材相似。这些机械性能是由于初始材料中的位错密度和焊缝中的晶粒细化造成的。

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Effect of Enhanced Grain Refinement in Friction Welded SUS316L Alloy

To investigate the solid state weldability on SUS316L alloy, this work was carried out. Friction welding as a solid state welding was introduced and conducted at a rotation speed of 2,000 rpm and a friction pressure of 25 MPa on tube typed specimens. After this work, the grain boundary characteristic distributions such a grain size, shape and misorientation angle of the welds were clarified by electron backscattering diffraction method. The application of friction welding on SUS316L resulted in a significant refinement of the grain size in the weld zone (6.03 μm) compared to that of the base material (57.55 μm). Despite the grain refinement, the mechanical properties of the welds indicate relatively low or similar to the base material. These mechanical properties are due to dislocation density in the initial material and grain refinement in the welds.

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来源期刊

Archives of Metallurgy and Materials 工程技术-冶金工程

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

4.5 months

期刊介绍： The Archives of Metallurgy and Materials is covered in the following Institute for Scientific Information products: SciSearch (the Science Citation Index - Expanded), Research Alert, Materials Science Citation Index, and Current Contents / Engineering, Computing and Technology. Articles published in the Archives of Metallurgy and Materials are also indexed or abstracted by Cambridge Scientific Abstracts.