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Key Laboratory of Power Metallurgy, Central South University, Changsha 410083, China) Abstract: The effect of cobalt and Ti(CN) content on the structure and properties of graded cemented carbides...和Ti(CN)的含量对合金梯度结构和性能影响有着重要作用. 本文作者通过气氛控制制备梯度结构硬质合金, 从钴和Ti(CN)含量对硬质合金梯度结构和性能的影响进行了一些探索性工作. 1 实验 实验混合料配比列于表1. 表1 硬质合金的成分配比 Table 1 Composition of cemented carbides (mass......
, Vandierendonck K, Quaeyhaegens C, et al. Adhesion of diamond coatings on cemented carbides[J]. Thin Solid Film, 1995(270): 184-188. [2] Inspektor A, Oles E J, Bauer C E. Theory and practice... of stable cobalt borides of CoB, CoW2 B2 and CoW3B3 formed at 950 ℃ can effectively reduce the diffusion of Co to the surface of cemented carbide substrates when diamond films are deposited......
J. Cent. South Univ. (2020) 27: 2999-3012 DOI: https://doi.org/10.1007/s11771-020-4524-6 Effects of temperature and age on physico-mechanical properties of cemented gravel sand backfills JIANG Fei... Co., Ltd., Jinchang 737104, China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: Cemented backfill used in deep mines would inevitably......
J. Cent. South Univ. (2021) 28: 2221-2237 DOI: https://doi.org/10.1007/s11771-021-4760-4 Numerical simulation on thermal accumulation of cemented tailings backfill ZHANG Xiao-yan(张小艳)1, ZHAO Min(赵敏... GmbH Germany, part of Springer Nature 2021 Abstract: Based on the collaborative exploitation of deep mineral resources and geothermal resources, the thermal accumulation process of cemented tailings......
trace La element into carbides iseffective to minish the grain size of WC/Co powder. The La doped carbides powderwith grain size of 30nm can be obtained after 1Oh ball milling. The XRD peak of Cophase... ofhigh energy ball milling. After consolidated the La doped WC/Co alloy by high energyball milling exhibits ultra-fine grain Sizes and better mechanical properties. Key words:cemented carbide; nano......
on the modified linear elastic fracture mechanics approach. Good agreement between the estimated and experimental fatigue lifetimes was confirmed. Key words: WC-Co cemented carbides; fatigue lifetime; crack growth rate; stress intensity factor 1 Introduction WC-Co cemented carbides have been widely used for cutting tools, die tools, and machine parts because they have excellent wear resistance superior......
with cemented carbide substrate, the corrosion current densities (icorr) of AlTiN, AlTiN-Cu and AlTiN/AlTiN-Cu coated cemented carbides reduce by 40%,80% and 93%, respectively, and the charge transfer resistances(Rct) of AlTiN, AlTiN-Cu and AlTiN/AlTiN-Cu coated cemented carbides increase by 2.91,3.72 and 7.85 times, respectively. Obviously, corrosion resistances of coated cemented carbides......
J. Cent. South Univ. (2020) 27: 267-276 DOI: https://doi.org/10.1007/s11771-020-4294-1 Quantitative investigation on micro-parameters of cemented paste backfill and its sensitivity analysis LIU... Germany, part of Springer Nature 2020 Abstract: The mechanical properties of cemented paste backfill (CPB) depend heavily on its pore structural characteristics and micro-structural changes. In order......
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