ABSTRACT To find a proper super alloy applied to gasoline engine turbochargers which demand a high operating temperature over 950°C, the IN713C super alloy was investigated in this study. The rheological properties of feedstock, density, microstructure and mechanical properties were measured. The proper powder loading was 61 vol.-%. Through the analysis of viscosity, 160°C was supposed to be more suitable for the injection. After debinding, most binder components were removed. A reasonable debinding process was formulated. Two pre-sintering temperature (850, 950°C) were investigated, then 850°C was considered to be more proper relatively. The samples were sintered at different temperatures for various time. The best properties of sintered parts were obtained when sintered at 1300°C for 3 h, the density of sintered parts was 7.83 g cm−3 while the hardness was 43.6 HRC and tensile strength was 1216.9 MPa.

中文翻译：

---

Inconel 713C合金粉末注射成型

摘要 为了找到一种适用于需要 950°C 以上高工作温度的汽油发动机涡轮增压器的高温合金，本研究对 IN713C 高温合金进行了研究。测量了原料的流变性能、密度、微观结构和机械性能。合适的粉末装载量为 61 vol.-%。通过粘度分析，160°C应该更适合注射。脱脂后，大部分粘合剂成分被去除。制定了合理的脱脂工艺。考察了两种预烧结温度（850、950℃），认为850℃相对更合适。样品在不同温度下烧结不同时间。烧结件在1300℃下烧结3h时性能最佳，烧结件密度为7。