摘要
采用V-EPC铸渗法制备了TiNp/Mn13复合材料,通过光学显微镜、XRD等研究了复合材料组织及TiN颗粒与基体结合情况,并在不同载荷下对不同TiN体积分数的复合材料和基体材料进行了冲击磨损试验。结果表明:混合粉涂层中TiN体积分数为27%,36%时,复合材料中TiN分布均匀,与基体形成冶金结合;在各冲击载荷下,复合材料具有比Mn13钢更好的抗冲击磨损性能;TiN的高硬度与基体的加工硬化协同作用保证了复合材料在中低载荷下的抗冲击磨损性能。
TiN ceramic particles reinforced Mn13 based composites were fabricated by V-EPC cast- penetration. The microstructure and interface combination status between TiN particles and the matrix of the composites were analyzed by optical microscopy and X-ray diffraction. The impact wear tests were performed on the composites with different TiN volume fractions and matrix under variable loads. The results show that when the TiN volume fraction of the mixture powder coating was 27% or 36 %, the TiN particles distributed uniformly in the composites and had metallurgical bonding with the matrix. Comparing with the Mn13 steel, the composites had better impact wear resistance under impact load. The impact wear resistance of the composites could be ensured under low and middle load for the synergistic effect of high hardness of TiN and work hardening of the matrix.
出处
《机械工程材料》
CAS
CSCD
北大核心
2011年第4期57-60,共4页
Materials For Mechanical Engineering
基金
陕西省工业攻关项目(2008K06-18)
陕西省教育厅专项科研项目(08JK345)
西安工业应用发展研究项目(YF07067)
关键词
高锰钢
TiN颗粒
铸渗
冲击磨损
high manganese steel
TiN particle
cast-penetration
impact wear resistance
