Scholarlink

<p>Additive manufacturing (AM) processes are increasingly considered as an alternative manufacturing route to produce complex aircraft components out of γ-TiAl-based alloys. Due to the process-related high and short-time energy input, extremely fast heating and cooling rates occur which can result in thermodynamic and chemical disequilibrium. We studied the effect of rapid heating and quenching cycles in a Ti–48Al–2Nb–2Cr (in at.%) alloy by carrying out <i>in situ</i> high-energy X-ray diffraction experiments in which AM-related heating cycles were simulated. These <i>in situ</i> experiments allow to determine the influence of cooling rate and a chosen powder bed temperature on phase evolution.</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

How rapid heating and quenching cycles affect phase evolution in advanced γ-TiAl alloys: An in situ synchrotron radiation study

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年6月13日

查看全文
  • Andreas Stark,
  • Marcus W. Rackel,
  • Florian Pyczak

摘要

Additive manufacturing (AM) processes are increasingly considered as an alternative manufacturing route to produce complex aircraft components out of γ-TiAl-based alloys. Due to the process-related high and short-time energy input, extremely fast heating and cooling rates occur which can result in thermodynamic and chemical disequilibrium. We studied the effect of rapid heating and quenching cycles in a Ti–48Al–2Nb–2Cr (in at.%) alloy by carrying out in situ high-energy X-ray diffraction experiments in which AM-related heating cycles were simulated. These in situ experiments allow to determine the influence of cooling rate and a chosen powder bed temperature on phase evolution.

Graphical abstract