罗军明,徐吉林,邓莉萍,钟震晨

• 1:南昌航空大学材料科学与工程学院

摘要(Abstract)：

选用不同TiC含量的钢结硬质合金在900、1000和1100℃下分别进行30、60、90和120 min抗氧化性能研究;采用CHI电化学工作站分析系统测试不同TiC含量钢结硬质合金在pH=1的H2SO4溶液,pH=7的NaCl溶液和pH=13的NaOH溶液中的极化曲线。结果表明:添加TiC钢结硬质合金比未加TiC的钢结硬质合金抗氧化性能好,其中10%TiC钢结硬质合金抗氧化性最好。随着温度的升高,TiC钢结硬质合金越容易被氧化,其氧化产物主要是Fe2O3,其次还出现了TiO2和Fe2TiO。5%TiC钢结硬质合金表现出耐蚀性能最好,20%的TiC钢结硬质合金耐蚀性能最差。

关键词(KeyWords)： TiC含量;钢结硬质合金;表面特性;抗氧化性;极化曲线

Abstract:

Keywords:

基金项目(Foundation): 江西省铜钨新材料重点实验室(2011-TW-08);; 江西省科技攻关项目(2011BBE50010)

作者(Author): 罗军明,徐吉林,邓莉萍,钟震晨

DOI: 10.13289/j.issn.1009-6264.2014.02.032

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