Scholarlink

<p><b>Abstract</b>—The structure and mechanical properties (under static and fatigue loading) of Al–6.7Mg–0.3Sc–0.25Zr alloy samples synthesized by selective laser melting (SLM) horizontally and vertically relative to a build platform and subsequently aged at 360°C for 5 h are studied. The density of the synthesized samples is found to be maximal (99.88%) at a laser power of 800 W and a scanning speed of 1500 mm/s. The mechanical properties of such samples are almost independent of the build direction and are as follows: the ultimate tensile strength is σ<sub>u</sub> = 420–430  MPa; the relative elongation, δ = 5–8%; and the fatigue limit, σ<sub>R</sub> = 130–140 &#xa0;MPa.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Structure and Mechanical Properties of a Selective Laser Melted Al–6.7Mg–0.3Sc–0.25Zr Alloy

  • 期刊论文

  • 发表日期：

    2025年3月1日

查看全文
  • M. V. Gerov,
  • A. G. Kolmakov,
  • D. V. Prosvirnin,
  • N. S. Zhdanova,
  • M. E. Prutskov,
  • S. V. Pivovarchik

摘要

Abstract—The structure and mechanical properties (under static and fatigue loading) of Al–6.7Mg–0.3Sc–0.25Zr alloy samples synthesized by selective laser melting (SLM) horizontally and vertically relative to a build platform and subsequently aged at 360°C for 5 h are studied. The density of the synthesized samples is found to be maximal (99.88%) at a laser power of 800 W and a scanning speed of 1500 mm/s. The mechanical properties of such samples are almost independent of the build direction and are as follows: the ultimate tensile strength is σu = 420–430  MPa; the relative elongation, δ = 5–8%; and the fatigue limit, σR = 130–140  MPa.