2019年4月1日 · Eta-phase (η- phase) is a ternary carbide formed by W, Co and C that forms when there is a deficiency of carbon in the WC-Co system. η- phase has two different carbide …

In this work, the wear resistance of WC-Co carbides containing Eta-phase, a secondary phase present in the hard metals when a carbon content deficiency occurs, is analyzed. Different …

Eta phase is a carbon deficient form of tungsten carbide that results in a harder, more brittle cemented carbide part. Insufficient carbon levels are generally the result of improper …

2007年7月1日 · In this work, an attempt has been made to study η-phase formation with respect to the heating temperature, holding time, binder composition, namely the Ni/ (Fe + Cr) ratio, …

coatings could enhance the formation of a brittle phase during sintering, named g-phase, (M,W) 6C. To investigate this effect, the pow-ders were heat-treated at variable temperatures, up to …

2023年10月13日 · As can be seen, mono-tungsten carbide (WC) is the main phase in 91 wt% WC–3 wt% TiC–6 wt% Co composites. The position of the low-intensity peaks of the cobalt …

This paper aims to present the metallurgical and mechanical characterization of cryogenically treated tungsten carbide (WC–Co) in terms of α-, β-, γ-, and η-phase particles and wear …

2017年6月1日 · Sintering of WC-AISI304 composites starts ∼900 °C and involves three stages. Densification is largely dominated by a reactive liquid phase sintering process. Eta-phase …

The processing of the tungsten carbide alloys is a bit more complicated. In this case, the material undergoes successive chemical etching steps to expose three different phases of the material …

In this study, a comprehensive. micron grade samples using Orientation Imaging Microscopy (OIM). Several. microstructural parameters were analyzed to investigate the grain growth …