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Journal of Materials Engineering and Performance

Published in:

04-06-2021

The Effect of Sr Addition on Hot Tearing Susceptibility of Mg-1Ca-xSr Alloys

Authors: Hua Zhao, Jiangfeng Song, Bin Jiang, Hong Yang, Biquan Xiao, Qiang Liu, Zhiyuan Yang, Xuejiao Jia, Jinge Liao, Liangyin Wu, Fusheng Pan

Published in: Journal of Materials Engineering and Performance | Issue 10/2021

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Abstract

The hot tearing susceptibility of Mg-1Ca-xSr (x=0, 0.2, 0.4, 0.6, wt.%) alloys was investigated by CRC mold with a contraction force measurement system with a load cell and a temperature monitor. The results showed that the hot tearing susceptibility of Mg-1Ca-xSr alloys significantly improved with increasing of Sr content. Especially in Mg-1Ca-0.6Sr alloy, no visible tear was found on the casting sample. The force dropped and the final force value from the time-force-temperature curve derived from the hot tearing instruments could reflect the hot tearing susceptibility of different alloys. The mechanism of improved hot tearing resistance of Mg-1Ca-xSr alloys was clarified. In addition to susceptible temperature range and eutectic liquid fraction, it is found that the formation tendency of divorced eutectic also plays an important role on the hot tearing behavior of Mg-1Ca-xSr alloys.

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Title: The Effect of Sr Addition on Hot Tearing Susceptibility of Mg-1Ca-xSr Alloys
Authors: Hua Zhao
Jiangfeng Song
Bin Jiang
Hong Yang
Biquan Xiao
Qiang Liu
Zhiyuan Yang
Xuejiao Jia
Jinge Liao
Liangyin Wu
Fusheng Pan
Publication date: 04-06-2021
Publisher: Springer US
Published in: Journal of Materials Engineering and Performance / Issue 10/2021
Print ISSN: 1059-9495
Electronic ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-021-05925-8

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