TY - JOUR

T1 - Ultrasound-Assisted Solidification of a Cu–Cr Alloy

AU - Zhang, Siruo

AU - Kang, Huijun

AU - Cheng, Min

AU - Chen, Zongning

AU - Wang, Zhicheng

AU - Guo, Enyu

AU - LI, Jiehua

AU - Wang, Tongmin

N1 - Funding Information: This work was financially supported by the National Key Research and Development Program of China (No. 2021YFA1600702), the National Natural Science Foundation of China (Nos. 51971051, 51971052, 51927801 and 52174356), the LiaoNing Revitalization Talents Program (No. XLYC1808005), the Innovation Foundation of Science and Technology of Dalian (Nos. 2019RQ043, 2020JJ25CY002 and 2020J12GX037) and the Fundamental Research Funds for the Central Universities (No. DUT20TD04). Jiehua Li acknowledges the financial support from Austrian Science Fund (FWF) (P 32378-N37) and BMBWF (KR 06/2020). Publisher Copyright: © 2022, The Chinese Society for Metals (CSM) and Springer-Verlag GmbH Germany, part of Springer Nature.

PY - 2022/12

Y1 - 2022/12

N2 - Ultrasonic cavitation radiates huge power in a small solidifying bulk, leading to significant grain refinement, purification andhomogenization 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 refinementand modification of primary Cr have been obtained. With the ultrasound vibration treatment, the mechanical properties ofthe as-cast Cu–Cr alloy have been improved. The wear resistance of the Cu–Cr alloy has also shown enhancement withrespect to the untreated alloy.

AB - Ultrasonic cavitation radiates huge power in a small solidifying bulk, leading to significant grain refinement, purification andhomogenization 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 refinementand modification of primary Cr have been obtained. With the ultrasound vibration treatment, the mechanical properties ofthe as-cast Cu–Cr alloy have been improved. The wear resistance of the Cu–Cr alloy has also shown enhancement withrespect to the untreated alloy.

KW - Acoustic cavitation

KW - Cu–Cr alloys

KW - Microstructure

KW - Solidification process

KW - Ultrasonic vibration

UR - http://www.scopus.com/inward/record.url?scp=85133293172&partnerID=8YFLogxK

U2 - 10.1007/s40195-022-01433-3

DO - 10.1007/s40195-022-01433-3

M3 - Article

AN - SCOPUS:85133293172

VL - 35.2022

SP - 2082

EP - 2088

JO - Acta metallurgica Sinica (English letters)

JF - Acta metallurgica Sinica (English letters)

SN - 1006-7191

IS - 12

ER -