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Al-10Sr中间合金形态对AlSi7Mg合金变质组织的影响
Effect of Morphology of Al-10Sr Intermediate Alloy on Inoculation Microstructure of AlSi7Mg Alloy
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- DOI:
- 作者:
- 周斌 龚家林 黄宜俊
ZHOU Bin;GONG Jialin;HUANG Yijun
- 作者单位:
- 中车戚墅堰机车车辆工艺研究所有限公司
Crrc Qishuyan Iintitute Co.,Ltd.,Changzhou 213011,China
- 关键词:
- ALSI7MG Al-10Sr中间合金 变质效果 锶收得率
AlSi7Mg Al-10Sr master alloy modification effect Sr absorption
- 摘要:
- 研究了不同成形方式的Al-10Sr中间合金(圆块状、长杆状)对Al Si7Mg合金变质效果及熔炼过程收得率的影响,并分析产生差异的原因,结果表明:采用圆杆状Al-10Sr变质的合金经热处理后(T6),Al Si7Mg合金中Si相呈更加细小的、均匀的颗粒状分布。熔炼过程中发现,圆杆状中间合金在同样条件下的收得率要更高,平均收得率达98.1%。
The inoculation effect and the yield of AlSi7Mg alloy by different forming methods of Al-10 Sr intermediate alloy(cylindrical and rod-shaped) were studied, and the reasons for the differences were analyzed. The results show that the Si phase of Al Si7 Mg alloy is more fine and uniform after heat treatment(T6) of the rod-shaped Al-10 Sr alloy. In the melting process, it is found that the yield of circular rod-shaped intermediate alloy is higher under the same conditions, with the average yield reaching 98.1%.