Scholarlink

<p>The effect of support laser powers (180–240 W) on 316L stainless steel fabricated by selective laser melting (SLM) at a 15° angle with a fixed main laser at 220 W was investigated in this study. A 220 W support achieved optimal tensile strength (627&#xa0;MPa), yield strength (492&#xa0;MPa), and elongation (37%). Although 240 W yielded the highest strength, it reduced ductility due to thermal defects. Post-annealing reduced residual stress, with X-ray diffraction showing the lowest value (347&#xa0;MPa) and full width at half maximum (2.67°) at 220 W. Results indicate that 220 W offers the best balance of strength, ductility, and structural reliability for inclined SLM builds.</p> Graphical abstract <p></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

Effect of support laser power and annealing on mechanical properties and microstructure of 316L stainless steel by selective laser melting

  • 期刊论文

  • 发表日期：

    2025年9月19日

查看全文
  • Yu Cheng Liou,
  • Ting Yu Chang,
  • Yi-Hung Chen,
  • Kuo Ming Lai,
  • Shih Chun Tseng

摘要

The effect of support laser powers (180–240 W) on 316L stainless steel fabricated by selective laser melting (SLM) at a 15° angle with a fixed main laser at 220 W was investigated in this study. A 220 W support achieved optimal tensile strength (627 MPa), yield strength (492 MPa), and elongation (37%). Although 240 W yielded the highest strength, it reduced ductility due to thermal defects. Post-annealing reduced residual stress, with X-ray diffraction showing the lowest value (347 MPa) and full width at half maximum (2.67°) at 220 W. Results indicate that 220 W offers the best balance of strength, ductility, and structural reliability for inclined SLM builds.

Graphical abstract