摘要
采用在普通45号钢的熔炼过程中加入Ti的方法,制备了不同成分的原位TiC/Fe复合材料,并观察分析显微组织,测定了性能。结果表明,简单的熔铸法可以制备不同体积分数的TiCp/Fe复合材料,复合材料中多数TiC以细小的规则三角形或四边形形状存在,且随Ti加入量的增加而增多,TiC含量达到一定含量时,还会形成棱面枝晶状TiC。材料硬度则随TiC含量增加而增加。当材料制备时只添加Ti,则TiC的形成,使得基体中碳含量的减少,从而使基体中的Fe3C减少或消失,其硬度随Ti含量的增加而先增后降,同时过量的Ti不仅形成缺碳的非计量比TiCx,还有形成条状的Fe2Ti金属间化合物。
In-situ TiC particle reinforced ferrous matrix composites with different contents were fabricated by added Ti metal during melting process of the No. 45 plain carbon steels. The microstructure of composites was analyzed and performance was measured. The results showed that different volume fraction of TiC particle reinforced ferrous matrix composites can be fabricated by using simple melting casting method. The shape of the most TiC in composites was fine and regular triangular or quadrilateral. The TiC qua...
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2008年第S1期347-351,共5页
Special Casting & Nonferrous Alloys
关键词
TIC
钢
复合材料
显微组织
TiC
Steel
Abrasive wear
Composite
Microstructure
