摘要
利用不同Ce含量的Cu-0.8Cr-Ce合金进行包埋内氧化处理,对所得的Cu/Cr2O3复合材料进行显微组织观察、内氧化层深及不同退火处理后显微硬度测定。结果表明:随着内氧化时间的延长,复合材料的内氧化层深增加;Ce的加入,不仅细化了晶粒,而且内氧化层深也相应加深,最高达772μm;同时Ce含量增加,也提高了Cu/Cr2O3复合材料软化温度,对于内氧化12 h所得Cu/Cr2O3复合材料,含0.1%Ce的软化温度约为400℃,而含0.2%Ce的软化温度约为500℃。
Embed internal oxidation of Cu-0.8Cr-Ce alloy with different contents of Ce was carried out.The microstructure of Cu/Cr2O3 composite materials was observed,the depth of internal oxidation layer and the microhardness of the different annealing temperatures were measured.It shows that the depth of internal oxidation layer increases with increasing internal oxidation time.The grains of Cu/Cr2O3 composite materials are refined and the internal oxidation layer becomes deeper with the Ce addition, and the maximum is 772 μm. At the same time, the softening temperature of Cu/Cr2O3 composite materials increases with increasing the contents of Ce. When the internal oxidation time is 12 h, the softening temperature of Cu/Cr2O3 composite materials with 0.1% Ce is about 400 ℃, and that of the materials with 0.2% Ce is increased up to about 500 ℃.
出处
《兵器材料科学与工程》
CAS
CSCD
2009年第4期63-66,共4页
Ordnance Material Science and Engineering
基金
河南省杰出青年基金项目(0512002700)
