Microstructure and properties of coarse-grained WC–10Co cemented carbides with different carbon contents during heat treatments

Autor:	Yuan-Feng Xie, Zhong-Wu Li, Xie Xingcheng, Lin Zhongkun, Cao Ruijun, Lin Chenguang, Qing Li
Rok vydání:	2019
Předmět:	Materials science Precipitation (chemistry) Metals and Alloys Nanoparticle chemistry.chemical_element Condensed Matter Physics Microstructure Carbide chemistry Phase (matter) Materials Chemistry Cryogenic treatment Physical and Theoretical Chemistry Solubility Composite material Carbon
Zdroj:	Rare Metals.
ISSN:	1867-7185 1001-0521
DOI:	10.1007/s12598-019-01276-5
Popis:	The effects of cryogenic treatment (CT) and tempering-cryogenic treatment (TCT) on the microstructure and properties of coarse-grained WC–10Co cemented carbides with different carbon contents were researched. The binder phase, WC mean grain sizes, W solubility in the binder, relative magnetic saturation, densities, hardness, wear resistance and second phase precipitation of cemented carbides with different heat treatments were discussed. The results show that there are significant changes of microstructure and properties in the samples with CT and TCT, especially due to the precipitation of metastable nanoparticles $${\text{W}}_{x} {\text{Co}}_{y} {\text{C}}_{z}$$ in the binder during the heat treatments of CT and TCT. With the simultaneous combination of microstructure and nanoparticle-reinforced binder, a dramatically improved combination of hardness and wear resistance of the samples after TCT has been achieved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bc0b8f7a5c18b6e18387fdcc7eced6b3 https://doi.org/10.1007/s12598-019-01276-5 Zobrazit plný text záznamu Full text from SpringerLink