摘要
研究了镍对铁基合金烧结收缩的影响,探讨了含镍铁基合金的烧结机制。结果表明,镍对铁基合金具有强烈的活化烧结作用,在1393K烧结2h后,Fe 6Ni合金的烧结收缩率约为纯铁的5倍;这种作用即使在低温(1273K)下就很明显,并具有长时的效果。镍元素改变了Fe C合金烧结收缩率随碳含量变化的规律,随碳含量的增加,Fe C合金的烧结收缩减小,而Fe Ni C合金的烧结收缩增加。
The influence of nickel on the sintering shrinkage of iron base alloys was studied, and the sintering densification mechanism of FeNi alloys was discussed. It was found that nickel increased sintering shrinkage of iron base alloys greatly. Linear shrinkage of Fe6Ni was 5 times as great as that of pure iron if sintered at 1 393K for 2 hours. The activated effect of nickel was long time and significant even at a sintering temperature as low as 1 273K. Shrinkage tendency of FeC alloy was changed when the alloy contained nickel. Shrinkage of FeC decreased with increase of carbon content while that of FeNiC increased with increase of carbon content.
出处
《机械工程材料》
CAS
CSCD
北大核心
2003年第10期11-13,16,共4页
Materials For Mechanical Engineering
基金
国家自然科学基金资助项目(50135020)
关键词
粉末冶金
铁镍合金
活化烧结
烧结工艺
powder metallurgy
iron nickel alloys
sintering
activation
