Improvement in grain refinement efficiency of Mg–Zr master alloy for magnesium alloy by friction stir processing

Previous studies have proved that the zirconium (Zr) alloying and grain refining performance of a Mg–Zr master alloy on Mg alloy is closely related to the distribution of Zr particle size, and a Mg–Zr master alloy with more Zr particles in size range of 1–5 μm exhibits a better refining efficiency....

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Main Authors: Chengqi Wang, Ming Sun, Feiyan Zheng, Liming Peng, Wenjiang Ding
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2014-09-01
Series:Journal of Magnesium and Alloys
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2213956714000553
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author Chengqi Wang
Ming Sun
Feiyan Zheng
Liming Peng
Wenjiang Ding
author_facet Chengqi Wang
Ming Sun
Feiyan Zheng
Liming Peng
Wenjiang Ding
author_sort Chengqi Wang
collection DOAJ
description Previous studies have proved that the zirconium (Zr) alloying and grain refining performance of a Mg–Zr master alloy on Mg alloy is closely related to the distribution of Zr particle size, and a Mg–Zr master alloy with more Zr particles in size range of 1–5 μm exhibits a better refining efficiency. In this paper, friction stir processing (FSP) was used to modify the Zr particles size distribution of a commercially available Mg–30 wt.%Zr master alloy, and the subsequent grain refinement ability was studied by trials on a typical Mg–3Nd–0.2Zn–0.6Zr (wt.%, NZ30K) alloy. It is found that plenty of large Zr particles in the as-received Mg–30%Zr master alloy are broken by FSP. Grain refinement tests reveal that the refining efficiency of Mg–30%Zr alloy is significantly improved by FSP, which is attributed to the better distribution of Zr particles. The refinement effect by adding 0.6% FSP-ed Mg–30%Zr is approximately equivalent to that by adding 1.0% as-received Mg–30%Zr. Due to the easy and convenient operation of FSP, this study provides a new method to develop a more efficient Mg–Zr refiner.
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spelling doaj.art-70f81e04aa264c2892d065ac10f64c672024-04-16T17:37:42ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672014-09-012323924410.1016/j.jma.2014.09.001Improvement in grain refinement efficiency of Mg–Zr master alloy for magnesium alloy by friction stir processingChengqi WangMing SunFeiyan ZhengLiming PengWenjiang DingPrevious studies have proved that the zirconium (Zr) alloying and grain refining performance of a Mg–Zr master alloy on Mg alloy is closely related to the distribution of Zr particle size, and a Mg–Zr master alloy with more Zr particles in size range of 1–5 μm exhibits a better refining efficiency. In this paper, friction stir processing (FSP) was used to modify the Zr particles size distribution of a commercially available Mg–30 wt.%Zr master alloy, and the subsequent grain refinement ability was studied by trials on a typical Mg–3Nd–0.2Zn–0.6Zr (wt.%, NZ30K) alloy. It is found that plenty of large Zr particles in the as-received Mg–30%Zr master alloy are broken by FSP. Grain refinement tests reveal that the refining efficiency of Mg–30%Zr alloy is significantly improved by FSP, which is attributed to the better distribution of Zr particles. The refinement effect by adding 0.6% FSP-ed Mg–30%Zr is approximately equivalent to that by adding 1.0% as-received Mg–30%Zr. Due to the easy and convenient operation of FSP, this study provides a new method to develop a more efficient Mg–Zr refiner.http://www.sciencedirect.com/science/article/pii/S2213956714000553Friction stir processing (FSP)Magnesium alloyMg–Zr master alloyGrain refinement
spellingShingle Chengqi Wang
Ming Sun
Feiyan Zheng
Liming Peng
Wenjiang Ding
Improvement in grain refinement efficiency of Mg–Zr master alloy for magnesium alloy by friction stir processing
Journal of Magnesium and Alloys
Friction stir processing (FSP)
Magnesium alloy
Mg–Zr master alloy
Grain refinement
title Improvement in grain refinement efficiency of Mg–Zr master alloy for magnesium alloy by friction stir processing
title_full Improvement in grain refinement efficiency of Mg–Zr master alloy for magnesium alloy by friction stir processing
title_fullStr Improvement in grain refinement efficiency of Mg–Zr master alloy for magnesium alloy by friction stir processing
title_full_unstemmed Improvement in grain refinement efficiency of Mg–Zr master alloy for magnesium alloy by friction stir processing
title_short Improvement in grain refinement efficiency of Mg–Zr master alloy for magnesium alloy by friction stir processing
title_sort improvement in grain refinement efficiency of mg zr master alloy for magnesium alloy by friction stir processing
topic Friction stir processing (FSP)
Magnesium alloy
Mg–Zr master alloy
Grain refinement
url http://www.sciencedirect.com/science/article/pii/S2213956714000553
work_keys_str_mv AT chengqiwang improvementingrainrefinementefficiencyofmgzrmasteralloyformagnesiumalloybyfrictionstirprocessing
AT mingsun improvementingrainrefinementefficiencyofmgzrmasteralloyformagnesiumalloybyfrictionstirprocessing
AT feiyanzheng improvementingrainrefinementefficiencyofmgzrmasteralloyformagnesiumalloybyfrictionstirprocessing
AT limingpeng improvementingrainrefinementefficiencyofmgzrmasteralloyformagnesiumalloybyfrictionstirprocessing
AT wenjiangding improvementingrainrefinementefficiencyofmgzrmasteralloyformagnesiumalloybyfrictionstirprocessing