Grain refining technique of AM60B alloy by Al-Ti-B master alloy

The effects of grain refining parameters on grain size of AM60B magnesium alloy have been investigated using an Al-5Ti-1B master alloy as refiner; and an appropriate refining technique has been developed. The results indicate that the Al-Ti-B master alloy is an effective grain refiner for AM60B allo...

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Main Authors: Chen Tijun, Wang Ruiquan, Ma Ying
Format: Article
Language:English
Published: Foundry Journal Agency 2011-11-01
Series:China Foundry
Subjects:
Online Access:http://www.foundryworld.com/uploadfile/2011122147923593.pdf
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author Chen Tijun
Wang Ruiquan
Ma Ying
author_facet Chen Tijun
Wang Ruiquan
Ma Ying
author_sort Chen Tijun
collection DOAJ
description The effects of grain refining parameters on grain size of AM60B magnesium alloy have been investigated using an Al-5Ti-1B master alloy as refiner; and an appropriate refining technique has been developed. The results indicate that the Al-Ti-B master alloy is an effective grain refiner for AM60B alloy and the grain size can be decreased from 348 μm to 76 μm. Raising the addition temperature or the pouring temperature is beneficial for grain refinement; while for the addition amount and holding time, there is an optimal value. The appropriate grain refining technique is that 0.3% Al-Ti-B master alloy is added at 780 ℃ and then the melt is held for 30 min before pouring. The above phenomena can be explained by the refining mechanisms that have been proposed from the related studies on Al and Mg alloys and theoretical analysis.
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spelling doaj.art-1561df1ec84348a0b6d027b1206216932022-12-22T03:10:58ZengFoundry Journal AgencyChina Foundry1672-64212011-11-0184380385Grain refining technique of AM60B alloy by Al-Ti-B master alloyChen TijunWang RuiquanMa YingThe effects of grain refining parameters on grain size of AM60B magnesium alloy have been investigated using an Al-5Ti-1B master alloy as refiner; and an appropriate refining technique has been developed. The results indicate that the Al-Ti-B master alloy is an effective grain refiner for AM60B alloy and the grain size can be decreased from 348 μm to 76 μm. Raising the addition temperature or the pouring temperature is beneficial for grain refinement; while for the addition amount and holding time, there is an optimal value. The appropriate grain refining technique is that 0.3% Al-Ti-B master alloy is added at 780 ℃ and then the melt is held for 30 min before pouring. The above phenomena can be explained by the refining mechanisms that have been proposed from the related studies on Al and Mg alloys and theoretical analysis.http://www.foundryworld.com/uploadfile/2011122147923593.pdfAM60B magnesium alloygrain refinementAl-Ti-B master alloyrefining mechanism
spellingShingle Chen Tijun
Wang Ruiquan
Ma Ying
Grain refining technique of AM60B alloy by Al-Ti-B master alloy
China Foundry
AM60B magnesium alloy
grain refinement
Al-Ti-B master alloy
refining mechanism
title Grain refining technique of AM60B alloy by Al-Ti-B master alloy
title_full Grain refining technique of AM60B alloy by Al-Ti-B master alloy
title_fullStr Grain refining technique of AM60B alloy by Al-Ti-B master alloy
title_full_unstemmed Grain refining technique of AM60B alloy by Al-Ti-B master alloy
title_short Grain refining technique of AM60B alloy by Al-Ti-B master alloy
title_sort grain refining technique of am60b alloy by al ti b master alloy
topic AM60B magnesium alloy
grain refinement
Al-Ti-B master alloy
refining mechanism
url http://www.foundryworld.com/uploadfile/2011122147923593.pdf
work_keys_str_mv AT chentijun grainrefiningtechniqueofam60balloybyaltibmasteralloy
AT wangruiquan grainrefiningtechniqueofam60balloybyaltibmasteralloy
AT maying grainrefiningtechniqueofam60balloybyaltibmasteralloy