Weibull analysis of fluidity and hardness of ultrasonical y degassed secondary Al7Si0.3Mg aluminum alloy

Weibull analysis of fluidity and hardness of ultrasonical y degassed secondary Al7Si0.3Mg aluminum alloy

论文摘要

The influence of ultrasonic degassing process on fluidity and hardness of secondary Al7 Si0.3 Mg alloy castings was studied by Weibull analysis. This work makes a contribution about fluidity and hardness distribution of secondary aluminum alloys with ultrasonic degassing phenomena using a two-parameter form of Weibull analysis. Results show that both hardness and fluidity of alloy are improved after the ultrasonic degassing process. Average efficiency of ultrasonic degassing on fluidity measurements is 31.71%, whereas on hardness values is 8.48%. The Brinell hardness of 45.7 and fluidity of 19.5 of Weibull modulus were achieved as the most reliable and reproducible after 45 s ultrasonic degassing process against 15 s and 30 s ultrasonic degassing processes. The value of 70.08 HB is obtained from ultrosonic degassing, which is equivalent to sand casting of primary Al7 Si0.3 Mg aluminum alloy, and the highest value of 56.4 cm for 45 s after ultrasonic degassing of fluidity was measured.

论文目录

  • 1 Experimental
  • 2 Results and discussion
  •   2.1 Microstructure
  •   2.2 Weibull distribution of Brinell hardness values
  •   2.3 Weibull distribution of fluidity
  •   2.4 Weibull Modulus
  • 3 Conclusions
  • 文章来源

    类型: 期刊论文

    作者: ?a?lar Yüksel

    来源: China Foundry 2019年05期

    年度: 2019

    分类: 工程科技Ⅰ辑

    专业: 金属学及金属工艺

    单位: Atatürk University, Department of Metallurgical and Materials Engineering

    分类号: TG146.21;TG24

    页码: 352-357

    总页数: 6

    文件大小: 1415K

    下载量: 5

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