Mechanical Properties, Metallurgical Characteristics and Anisotropy of Additive Manufacturing of 316L
Mechanical Properties, Metallurgical Characteristics and Anisotropy of Additive Manufacturing of 316L作者机构：Bet Shemesh Engines LTD FAA & EASA Bet Shemesh Israel
出 版 物：《Journal of Minerals and Materials Characterization and Engineering》 (矿物质和材料特性和工程（英文）)
年 卷 期：2022年第10卷第2期
页 面：209-223页
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
主 题：SS316L Additive Manufacturing (AM) Preferred Orientation Mechanical Properties Young’s Modulus
摘 要：Additive manufacturing (AM), while enabling the production of parts with complex geometries, presents new challenges. In particular, the achievement of the basic mechanical properties of the alloy must be ensured. In general, the strength-ductility properties of metals depend strongly on their microstructure, and controlling these properties requires paying attention to the alloy composition, processing technique and heat treatments. Austenite 316L stainless steel parts produced by AM demonstrate good ductility and high yield strength—higher than that obtained with annealed 316L. Some preferred orientation of the mechanical properties was found as a function of the laser path, namely, the Young’s modulus varied with respect to the angle between the build direction and the normal to the build direction. In the present study, samples of AM 316L in three orientations relative to the print direction (0˚, 45˚and 90˚) are compared to a forged sample. Mechanical properties, scanning electron microscopy-SEM fractography, energy dispersive X-ray spectroscope-EDS analysis of the fracture and optical cross section images of the samples along the stress tension after the failure are presented.
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