H13钢低温等离子体渗硼层的热熔损性能  

Melting-loss resistance of H13 steel with low temperature plasma boride layer in liquid aluminium

作　　者：吴晓春[1] 邬天荣[1] 杨浩鹏[1] 王庆芳[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072

出　　处：《材料热处理学报》2011年第1期97-102,共6页Transactions of Materials and Heat Treatment

基　　金：上海市重点学科建设项目资助(S30107);国家博士点专项科研基金(2006028006)

摘　　要：研究喷丸预处理的H13钢低温等离子体渗硼试样的耐铝合金热熔损的性能。结果表明,经喷丸预处理的H13钢试样在590℃等离子渗硼2 h后,表面获得高硬度的硼化物层,其硬度值达10 GPa,厚度约为2μm。通过动态热熔损实验,发现低温渗硼试样耐铝合金热熔损性能明显优于原始试样,并且当熔损时间较短时其耐热熔损效果尤其突出。By shot-peening pre-treatment and low temperature plasma boriding treatment,boride layer with thickness of about 2 μm and hardness of about 10 GPa was formed on surface of H13 steel sample.The dynamic melting-loss of the boronized and untreated samples were tested in liquid aluminium.The results indicate that the melting-loss resistance of the treated samples are much better than that of the untreated.It is confirmed plasma boriding treatment can significantly enhance the erosion and corrosion resistance of H13 steel in liquid aluminium,especially for short-term erosion.

关 键 词：热作模具钢H13 喷丸 等离子低温渗硼 热熔损 

分 类 号：TG156.8[金属学及工艺—热处理]