Abstract This paper deals with a complex characterization of metal injection molding (MIM) feedstocks based on Inconel 718 powder and partially water-soluble binder systems. Polyethylene glycol (PEG) is a well-known component in design of feedstock formulations due to its low viscosity, solubility in the water, eco-friendly nature and commercial availability. The main objective of this paper is to investigate the influence of PEG molecular weight on overall MIM process chain including its eventual impact on final mechanical properties. For this purpose, 7 feedstocks with a fixed amount of powder loading (59 vol%) and the binder composition differing in molecular weight of PEG (in a range from 1500 to 20,000 g/mol) were investigated. The PEG molecular weight was found to have the considerable impact on the feedstock moldability and debinding kinetics.

中文翻译：

---

基于 Inconel 718 粉末和 PEG 分子量不同的部分水溶性粘合剂的 MIM 原料的加工

摘要 本文涉及基于 Inconel 718 粉末和部分水溶性粘合剂系统的金属注射成型 (MIM) 原料的复杂表征。聚乙二醇 (PEG) 因其低粘度、在水中的溶解性、生态友好性和商业可用性而成为原料配方设计中的众所周知的成分。本文的主要目的是研究 PEG 分子量对整个 MIM 工艺链的影响，包括其对最终机械性能的最终影响。为此，研究了具有固定粉末负载量 (59 vol%) 的 7 种原料和不同 PEG 分子量（在 1500 至 20,000 g/mol 范围内）的粘合剂组合物。