Effect of Degassing and Grain Refinement on Hot Tearing Tendency in Al8Si3Cu Alloy

被引：0
作者：
Muhammet Uludağ
Remzi Çetin
Derya Dispinar
Murat Tiryakioğlu
机构：
[1] Bursa Technical University,Metallurgical and Materials Engineering
[2] Karatay University,Engineering Faculty
[3] Istanbul University,Engineering Faculty
[4] University of North Florida,School of Engineering
来源：
International Journal of Metalcasting | 2018年 / 12卷
关键词：
casting; aluminum alloys; grain refining; simulation; hot tearing;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effect of melt quality on hot tearing susceptibility of Al8Si3Cu alloy was examined under six different conditions, by using a traditional T-shaped mold. Grain refinement was carried out by two different modifiers: AlTi5B1 and Al3B. For each test, samples were cast before and after degassing of melt. Therefore, a new hot tearing tendency index was developed by both bifilm calculations and porosity that occurred in the middle of T-zone of casting parts. Results indicated that hot tearing of cast aluminum alloys was a complex phenomenon, and bifilms play a major role, especially by compensating for shrinkage and consequently contributing to the inconsistencies in results.
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页码：589 / 595
页数：6
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