Abstract

This paper presents the results of the study of the structure of samples manufactured using the selective laser melting (SLM) method of a powder of stainless austenitic chromium–nickel steel (Mn 1.3%; Si 0.7%; Cr 16.6%; Ni 10.6%; Mo 2.4%; Fe for balance). It has been shown that there are uniformly distributed spherical particles with an average size of 70 nm and large inclusions 10–50 microns in size in the steel. The revealed peculiarities of the structure of the stainless austenitic steel obtained using SLM technology are likely factors that can provide an increase in strength and a reduction of plasticity and impact toughness.

中文翻译：

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复合结构作为不锈钢奥氏体铬镍添加钢的强化因子

摘要

本文介绍了采用选择性激光熔化（SLM）方法制造的不锈钢奥氏体铬镍合金粉末（锰1.3％；硅0.7％；铬16.6％；镍10.6％；镍； 5％）的样品的结构研究结果。钼2.4％；铁为余量）。研究表明，钢中存在平均粒径为70 nm的均匀分布的球形颗粒，且夹杂物的尺寸为10–50微米。使用SLM技术获得的不锈奥氏体钢的结构所揭示的特殊特性可能是可能导致强度提高，塑性和冲击韧性降低的因素。