蒸汽氧化H13钢的抗铝热熔损性能研究  

STUDY ON EROSION RESISTANCE OF H13 STEEL STEAM-OXIDIZED IN MOLTEN ALUMINUM

作　　者：闵永安[1] 王荣[1] 吴晓春[1] 许珞萍[1] 李麟[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072

出　　处：《上海金属》2004年第3期5-9,共5页Shanghai Metals

基　　金：上海市科技发展基金 (0 15 2 110 10 );ASSAB上海模具技术有限公司资助项目

摘　　要：采用失重法评价了静置或旋转条件下 ,不同蒸汽氧化处理及氧化 +离子硫氮共渗复合处理的H1 3钢试样在 75 0℃的ADC1 2铝液中的熔损性能。采用光学显微镜、X射线衍射仪分析了试样表面处理后生成的薄膜 ;分别用光学显微镜、能谱仪分析了熔损试样铁—铝界面组织和局部成分。蒸汽氧化试样显示了良好的熔损抗力 ,尤其是在动态旋转的情况下 ,这与表面薄膜的组成、性能、熔损机制等多种因素有关。The specimens of H13 steel were oxidized in the steam of different parameters,and some of them were then sulphur_nitrided in plasma atmosphere, their erosion resistances in liquid aluminum of ADC12 at 750℃ were evaluated by the weight loss method.The surface films of the specimens after treatment were analyzed by the optical microscopy (OP) and the X_ray diffraction meter (XRD). The microstructure and the partial composition of Fe_Al interface structure were examined respectively by the OP and the energy spectrometer. The steam oxidized samples which showed outstanding erosion resistance especially under the dynamic/rotating condition were due to the factors of the film structure,the film property and the erosion mechanism.

关 键 词：H13钢 模具钢 蒸汽氧化 压铸模 熔损 铝液 

分 类 号：TG142.45[一般工业技术—材料科学与工程] TG172.82[金属学及工艺—金属材料]