Ultrasound-Assisted Solidification of a Cu–Cr Alloy

Research output: Contribution to journalArticleResearchpeer-review


  • Siruo Zhang
  • Huijun Kang
  • Min Cheng
  • Zongning Chen
  • Zhicheng Wang
  • Enyu Guo
  • Tongmin Wang

Organisational units

External Organisational units

  • Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province)


Ultrasonic cavitation radiates huge power in a small solidifying bulk, leading to significant grain refinement, purification and
homogenization of the final alloys. Ultrasound vibration has mostly been used for treating the solidification of light metals,
but it is difficult to directly introduce ultrasonic vibration into copper alloy due to the lack of proper sonotrode. In this work,
we have used a Sialon ceramic sonotrode to propagate acoustic waves in a Cu–Cr alloy melt. Significant grain refinement
and modification of primary Cr have been obtained. With the ultrasound vibration treatment, the mechanical properties of
the as-cast Cu–Cr alloy have been improved. The wear resistance of the Cu–Cr alloy has also shown enhancement with
respect to the untreated alloy.


Original languageEnglish
Pages (from-to)2082-2088
Number of pages7
JournalActa metallurgica Sinica (English letters)
Issue number12
Publication statusE-pub ahead of print - 3 Jul 2022