Effects of ultrasonic melt treatment and solution treatment on the microstructure and mechanical properties of low-density multicomponent Al₇₀Mg₁₀Si₁₀Cu₅Zn₅ alloy

详细信息    查看全文

• 作者：Eun-Ji Baek^a ; ^b ; Tae-Young Ahn^c ; Jae-Gil Jung^d ; ^{jgjung@kims.re.kr} ; Jung-Moo Lee^d ; Young-Rae Cho^b ; Kwangjun Euh^a
• 关键词：Metals and alloys ; Microstructure ; Precipitation ; Mechanical properties ; Ultrasonics
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：5 March 2017
• 年：2017
• 卷：696
• 期：Complete
• 页码：450-459
• 全文大小：3349 K
• 卷排序：696

文摘

Low-density Al70Mg10Si10Cu5Zn5 was successfully fabricated at atmospheric pressure. The alloy consisted of an fcc solid-solution and various intermetallic compounds. Ultrasonication reduced porosity and Mg2Si size, improving strength and ductility. Zn and Cu clusters formed after solution treatment improved the strength at 25 °C. The alloy exhibited excellent strength at temperatures below 200 °C.