Fatigue Data for Laser Powder Bed Fused 17-4 PH Stainless Steel Specimens in Different Heat Treatment and Surface Roughness Conditions

This article presents the data demonstrating the synergistic effect of surface roughness and heat treatment on the fatigue behavior of 17–4 PH stainless steel (SS) fabricated via Laser Powder Bed fusion (L-PBF). Two sets of specimens, in as-built and machined surface conditions, were heat treated using five different recommended procedures for 17-4 PH SS by ASTM. Axial fully-reversed fatigue tests (R = -1) were conducted on heat treated as-built and machined specimens. The stable hysteresis stress–strain data, as well as the maximum and minimum stress and strain values for the cycle in a log10 increment are included for all conducted fatigue experiments. In addition, fractography images are provided for selected set of specimens.

本文呈现了用于展示经激光粉末床熔融（Laser Powder Bed Fusion, L-PBF）制备的17-4 PH不锈钢（SS）的表面粗糙度与热处理工艺对其疲劳行为协同效应的数据集。本研究制备了原始打印态与机加工态两类试样，并采用美国材料与试验协会（ASTM）针对17-4 PH不锈钢推荐的5种不同热处理工艺完成试样的热处理。随后，对经上述热处理后的两类试样开展了轴向全反向疲劳试验（应力比R=-1）。所有疲劳试验均记录了稳定的滞后应力应变数据，以及以10为底的对数增量下单次循环的最大、最小应力与应变值。此外，还提供了部分选定试样的断口形貌图像。