Abstract

A metal matrix composite material was obtained by self-propagating high temperature synthesis (SHS) from powder mixtures of titanium, carbon (carbon black), and high chromium cast iron of PG-S27 trademark. Synthesized products were crushed and sieved to get a composite powder for plasma spraying of wear resistant coatings. The coatings were tested for hardness and abrasive wear resistance. According to X‑ray diffraction and scanning electron microscopy investigation, the structure of coatings involved fine TiC particles uniformly distributed over the cast iron matrix. It was ascertained that the coatings plasma sprayed with the SHS composite powder had a hardness 2 times greater and abrasive wear resistance 3.5 times greater than that of plasma sprayed with the cast iron powder.

中文翻译：

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“ TiC +高铬铸铁粘结剂”复合粉末喷涂等离子涂层的结构和耐磨性

摘要

金属基质复合材料是通过自蔓延高温合成（SHS）从钛，碳（炭黑）和PG-S27商标的高铬铸铁的粉末混合物中获得的。将合成产品压碎并过筛，以获得用于粉末喷涂耐磨涂层的复合粉末。测试了涂层的硬度和耐磨性。根据X射线衍射和扫描电子显微镜研究，涂层的结构包括均匀分布在铸铁基体上的TiC细颗粒。可以确定，用等离子喷涂SHS复合粉末喷涂的涂层的硬度是用铸铁粉末喷涂等离子体的涂层的2倍，耐磨性是其3.5倍。