Luo Qixiang, Yin Lu, Simpson Timothy W, Beese Allison M
Department of Material Science and Engineering, Pennsylvania State University, University Park, PA 16802, United States of America.
Department of Industrial and Manufacturing Engineering, Pennsylvania State University, University Park, PA 16802, United States of America.
Data Brief. 2023 Jan 18;46:108911. doi: 10.1016/j.dib.2023.108911. eCollection 2023 Feb.
The processing, structure, and property features for Ti-6Al-4V additively manufactured using laser powder bed fusion (L-PBF) over a range of processing parameter combinations are reported. In terms of processing, laser power and laser scanning speed were varied over a wide range, to investigate dense processing space as well as regimes likely to result in keyhole, lack of fusion, and beading up defects, which can occur during L-PBF. Archimedes measurements were used to measure porosity, while X-ray computed tomography (XCT) was used to quantify pore sizes, pore morphologies, and overall porosity, and finally, optical microscopy was used to quantify prior-β grain characteristics. Average pore size and shape, porosity, prior- grain size and aspect ratio, and surface roughness for each processing parameter set are reported. Uniaxial tension tests and microhardness measurements were performed, with elastic modulus, yield strength, ultimate tensile strength, elongation to necking, elongation to fracture, and Vickers microhardness reported.
报告了在一系列加工参数组合下,采用激光粉末床熔融(L-PBF)增材制造的Ti-6Al-4V的加工、结构和性能特征。在加工方面,激光功率和激光扫描速度在很宽的范围内变化,以研究致密的加工空间以及可能导致匙孔、未熔合和堆积缺陷的区域,这些缺陷可能在L-PBF过程中出现。采用阿基米德测量法测量孔隙率,而X射线计算机断层扫描(XCT)用于量化孔径、孔隙形态和总体孔隙率,最后,光学显微镜用于量化原始β晶粒特征。报告了每个加工参数集的平均孔径和形状、孔隙率、原始晶粒尺寸和纵横比以及表面粗糙度。进行了单轴拉伸试验和显微硬度测量,并报告了弹性模量、屈服强度、极限抗拉强度、颈缩伸长率、断裂伸长率和维氏显微硬度。