FATIGUE STRENGTH OF Al-Cu CAST ALLOY WITH DIFFERENT POURING TEMPERATURE

被引：0
|
作者：
Akhyar [1 ]
Iswanto, P. T. [2 ]
Malau, V. [2 ]
Putra, F. P. [2 ]
Farhan, A. [3 ]
机构：
[1] Univ Syiah Kuala, Dept Mech Engn, Jln Syech Abdurrauf 7, Banda Aceh 23111, Indonesia
[2] Gadjah Mada Univ UGM, Dept Mech & Ind Engn, Jln Grafika 2, Yogyakarta 55281, Indonesia
[3] FKIP Univ Syiah Kuala, Dept Phys Educ, Banda Aceh, Indonesia
来源：
METALURGIJA | 2024年 / 63卷 / 02期
关键词：
Al-Cu cast alloy; fatigue strength; tensile strength; pouring temperature; microstructure;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
This experiment aimed to evaluate how pouring temperature affects fatigue strength of Al-Cu cast alloy. Subsequently, commercial aluminum ingots, such as Al-2024 were remelted and then machined into samples for both tensile and fatigue testing. These samples were cast at three different temperature of 688, 738, and 788 oC while maintaining a constant mold temperature of 220 oC. The results showed that the highest tensile strength was 201,06 MPa at 738 oC. Additionally, the greatest fatigue strength was observed at 80,4 MPa at pouring temperature of 738 oC. It was observed that variations in pouring temperature can significantly impact fatigue strength of cast alloy. At the highest pouring temperature of 788 degrees C, the presence of pores in the metal casting samples resulted in a decrease in both tensile and fatigue strength. Furthermore, when examining the surface fractography of casting sample, the presence of brittle cracks in alloy was observed.
引用
收藏
页码：197 / 200
页数：4
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