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微波燒結(jié)硬質(zhì)合金工藝的升溫速度分析
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中國(guó)博士后科學(xué)基金(20060400882)；中南大學(xué)博士后科學(xué)基金


Study on Heating Rate of Microwave Sintering Technology for Cemented Carbides
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    摘要:

    研究WC-11.5Co硬質(zhì)合金的微波燒結(jié)工藝以及升溫速度對(duì)合金致密度、顯微組織、硬度（HRA）的影響。結(jié)果表明，微波燒結(jié)能夠快速制備高致密度、高硬度的硬質(zhì)合金；在10.4~61.9 ℃/min范圍內(nèi)，升溫速度對(duì)合金組織和性能未產(chǎn)生明顯影響，硬度（HRA）在88.5~89.5之間，高于常規(guī)燒結(jié)的87.6和牌號(hào)為YG11C產(chǎn)品的硬度指標(biāo)。

    Abstract:

    Sintering technique via microwave energy for WC-11.5Co cemented carbides and the effect of heating rate on the densification, microstructures and hardness (HRA) were investigated. Cemented carbides with high densification and hardness can be achieved by microwave sintering. Within the heating rate from 10.4 to 61.9 oC/min, it has no visible effect on alloys’ microstructures and properties. The harness ranging from 88.5 to 89.5 is obviously higher than 87.6 of conventionally sintered counterparts and the hardness index of YG11C commercial products.

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羅述東,易健宏,彭元東.微波燒結(jié)硬質(zhì)合金工藝的升溫速度分析[J].稀有金屬材料與工程,2010,39(5):820~823.[Luo Shudong, Yi Jianhong, Peng Yuandong. Study on Heating Rate of Microwave Sintering Technology for Cemented Carbides[J]. Rare Metal Materials and Engineering,2010,39(5):820~823.]
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  • 收稿日期:2009-05-01
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