制动鼓用加锡蠕墨铸铁抗热疲劳性能的研究
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摘要
通过在铸铁中添加不同含量的Sn,分析Sn含量变化对铸铁在600~20℃交变温度下抗热疲劳性能的影响规律。结果表明,当Sn的添加量为0.06%时,在270℃等温淬火0.5 h后,铸铁的基体组织为奥铁体,具有最佳的抗热疲劳性能。
The Sn element of different contents was added into vermicular graphite iron, and the thermal fatigue property of the cast iron was tested at the alternative temperature of 600~20 ℃. The results show that when adding 0.06% Sn into the cast iron, after isothermal quenching at 270 ℃ for 0.5 h, the matrix structure of the cast iron consists of austenite, and the cast iron has the best thermal fatigue resistance.
The Sn element of different contents was added into vermicular graphite iron, and the thermal fatigue property of the cast iron was tested at the alternative temperature of 600~20 ℃. The results show that when adding 0.06% Sn into the cast iron, after isothermal quenching at 270 ℃ for 0.5 h, the matrix structure of the cast iron consists of austenite, and the cast iron has the best thermal fatigue resistance.
引文
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[8]刘宗昌,任慧平.贝化体与贝化体相变[M].北京:冶金工业出版社,2009.
[2]张妍,王宁,张志霞.基体组织对球铁抗热疲劳性能的影响[J].铸造技术,2005,26(09):824-826.
[3]陈向强,吴文远,莫德勒图,等.富镧蠕化剂对铸铁中的石墨形态和组织的影响[J].有色矿冶,2008,24(02):40-42.
[4]陈海军,陈丹,吴素珍,等.Sn对蠕墨铸铁组织与抗热疲劳性能的影响[J].铸造,2015,64(01):5-8.
[5]Tsujikawa M,Nagamine K,Ikenaga A,et al.Influence of graphite morphology on dry sliding wear of flake graphite cast irons[J].International Journal of Cast Metals Research,2008,21(01):76-80.
[6]Shy Y H,Hsu C H,Lee S C,et al.Effects of titanium addition and section size on microstructure and mechanical properties of compacted graphite cast iron[J].Materials Science and Engineering A,2000,278(01):54-60.
[7]Lin P Y,Zhu Y F,Zhou H,et al.Wear resistance of a bearing steel processed by laser surface remelting cooled by water[J].Scripta Materialia,2010,63(08):839-842.
[8]刘宗昌,任慧平.贝化体与贝化体相变[M].北京:冶金工业出版社,2009.