Effect of Sr on the grain refinement of ZK60 magnesium alloy

CHENG Renju; PAN Fusheng; YANG Mingbo; TANG Aitao

doi:10.13374/j.issn1001-053x.2008.12.007

Volume 30 Issue 12

Aug. 2021

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CHENG Renju, PAN Fusheng, YANG Mingbo, TANG Aitao. Effect of Sr on the grain refinement of ZK60 magnesium alloy[J]. Chinese Journal of Engineering, 2008, 30(12): 1397-1401. doi: 10.13374/j.issn1001-053x.2008.12.007

Citation:

CHENG Renju, PAN Fusheng, YANG Mingbo, TANG Aitao. Effect of Sr on the grain refinement of ZK60 magnesium alloy[J]. Chinese Journal of Engineering, 2008, 30(12): 1397-1401. doi: 10.13374/j.issn1001-053x.2008.12.007

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Effect of Sr on the grain refinement of ZK60 magnesium alloy

doi: 10.13374/j.issn1001-053x.2008.12.007

1. Materials Science & Engineering College, Chongqing University, Chongqing 400030, China;
2. Materials Science & Engineering College, Chongqing Institute of Technology, Chongqing 400050, China

Received Date: 2008-05-22
Rev Recd Date: 2008-07-11

Available Online: 2021-08-06

Abstract

Abstract

The effect of Sr addition on the grain refinement of ZK60 magnesium alloy was investigated by means of OM, SEM and EDX. The results indicate that adding small amounts of Sr can effectively refine the as-cast microstructure of ZK60 alloy, but the effects of Sr adding amount and melt holding time on the refinement efficiency are obvious. For a given melt holding time, the refine-ment efficiency enhances with the Sr adding amount increasing from 0.01% to 0.1%. For a given Sr adding amount, the refinement efficiency enhances with the melt holding time increasing from 20 to 80 min, hut reduces obviously while the melt holding time exceeds 80 min.
- ZK60 magnesium alloy,
- strontium,
- Mg-Sr master alloy,
- grain refinement