热处理对选择性激光熔化316L钢低周疲劳性能的影响

The Influence of Heat Treatment on Low Cycle Fatigue Properties of Selectively Laser Melted 316L Steel.

作者信息

Kluczyński Janusz, Śnieżek Lucjan, Grzelak Krzysztof, Torzewski Janusz, Szachogłuchowicz Ireneusz, Oziębło Artur, Perkowski Krzysztof, Wachowski Marcin, Małek Marcin

机构信息

Faculty of Mechanical Engineering, Institute of Robots & Machine Design, Military University of Technology, 2 Gen. S. Kaliskiego St., 00-908 Warsaw, Poland.

Department of Ceramics and Composites, Institute of Ceramics and Building Materials, 9 Postepu St., 02-676 Warsaw, Poland.

出版信息

Materials (Basel). 2020 Dec 16;13(24):5737. doi: 10.3390/ma13245737.

The paper is a project continuation of the examination of the additive-manufactured 316L steel obtained using different process parameters and subjected to different types of heat treatment. This work contains a significant part of the research results connected with material analysis after low-cycle fatigue testing, including fatigue calculations for plastic metals based on the Morrow equation and fractures analysis. The main aim of this research was to point out the main differences in material fracture directly after the process and analyze how heat treatment affects material behavior during low-cycle fatigue testing. The mentioned tests were run under conditions of constant total strain amplitudes equal to 0.30%, 0.35%, 0.40%, 0.45%, and 0.50%. The conducted research showed different material behaviors after heat treatment (more similar to conventionally made material) and a negative influence of precipitation heat treatment of more porous additive manufactured materials during low-cycle fatigue testing.

本文是对使用不同工艺参数获得并经过不同类型热处理的增材制造316L钢进行研究的项目延续。这项工作包含了与低周疲劳试验后材料分析相关的大量研究成果，包括基于莫罗方程的塑性金属疲劳计算和断裂分析。本研究的主要目的是指出加工后材料断裂的主要差异，并分析热处理如何影响低周疲劳试验期间的材料行为。上述试验在总应变幅值恒定为0.30%、0.35%、0.40%、0.45%和0.50%的条件下进行。所开展的研究表明，热处理后材料表现出不同的行为（更类似于传统制造的材料），并且在低周疲劳试验期间，多孔增材制造材料的析出热处理具有负面影响。