Boronizing mechanism of cemented carbides and their wear resistance

Autor:	Feifei Zhao, Xiang Luo, Guobiao Lin, Jiahua Wang, Zhongjian Zhang, Zhihai Qiu
Rok vydání:	2013
Předmět:	Wear resistance Hydrogen atmosphere Materials science chemistry Abrasion (mechanical) Metallurgy Cemented carbide chemistry.chemical_element Microstructure Boron Argon atmosphere Carbide
Zdroj:	International Journal of Refractory Metals and Hard Materials. 41:351-355
ISSN:	0263-4368
DOI:	10.1016/j.ijrmhm.2013.05.008
Popis:	Embedded in the solid-state boronizing agent sealed in a container, WC–Co cemented carbides were boronized at an elevated temperature. With the help of microstructure investigation and X-ray diffraction examination of the agent and surface layers of the cemented carbides after boronization, it is determined that KBF 4 comes into play to boronize the cemented carbides only on the existence of substance such as B 4 C, which is capable of providing boron. Induction-heating and hydrogen atmosphere are better for the boronization than resistance heating and argon atmosphere, and the presence of SiC and rare-earth elements is also favorable. The boronizing mechanism was studied based on experimental results. Abrasion test was applied with the result that the boronization made the wear resistance improve significantly.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::61ea336721553e255189945b0605e67f https://doi.org/10.1016/j.ijrmhm.2013.05.008 Zobrazit plný text záznamu Full Text from ScienceDirect