Effect of copper addition and heat-treatment on mechanical properties of low alloy ductile cast iron

摘要：

The effects of the addition of up to 0.50wt％ copper, and annealing and normalizing on the mechanical properties of low alloy ductile cast iron were investigated. Results show that the Ar, temperature decreases with the increasing copper content. The strength and hardness of the iron decrease while the elongation and impact energy absorbed increase with the annealing at the temperature of 50°C above the Ar, as compared with those of as-cast condition. The hardness decreases, the elongation increases and the tensile strength changes little with the annealing at the temperature of 50°C below Ar1, i.e., stress relief. Meanwhile the strength and hardness increase, the elongation decreases and the impact energy absorbed decreases with normalization. The ductile-to-brittle transition temperature of low alloy ductile cast iron was about 30°C below zero.

关键词： cast iron ductile cast iron mechanical property tensile and impact properties heat-treatment

作者: Ki-Ho Park Hae-Wook Kwon

作者单位: Dept. of Mat. Sci. and Eng., Graduate School, Yeungnam Univ., Gyeongsan, Rep. of Korea School of Mat. Sci.aand Eng., Yeungnam Univ., Gyeongsan, Rep. of Korea

会议类型: 国际会议

会议名称: The 11th Asian Foundry Congress(第11届亚洲铸造会议 AFC-11)

会议地点: 广州

会议语种:英文

页码: 1-6

在线出版日期: 2011-11-12（万方平台首次上网日期，不代表论文的发表时间）