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硬質(zhì)合金中WC相的孿生變形機(jī)制
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TG146.411 TG135.5

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機(jī)械傳動國家重點(diǎn)實(shí)驗(yàn)室訪問學(xué)者資助項(xiàng)目(2003(5-3))


The Mechanism of Deformation Twin in WC Phase of Cemented Carbide
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    摘要:

    WC的塑性變形對提高硬質(zhì)合金的韌性有重要作用,孿生是WC塑性變形的重要方式之一。通過對硬質(zhì)合金試樣施加一定應(yīng)力,使之產(chǎn)生應(yīng)變,對其微觀組織進(jìn)行TEM分析,研究了孿生變形特性。結(jié)果表明,當(dāng)WC為單一相時,WC相能產(chǎn)生孿生-滑移協(xié)調(diào)變形,從而使該合金具有較高的韌性。在礦山鑿巖領(lǐng)域,這種高韌性合金顯現(xiàn)出較好的使用性能。

    Abstract:

    The plastic deformation in tungsten carbide plays an important role in the improvement of toughness of cemented carbide. Twining is one of typical ways of plastic deformation. The microstructure and twin deformation proporties of WC phases were investigated by loading alloy specimen. The results show that when WC phase is pure phase, it can generate twin-slip coordination deformation, thus the alloy exhibits higher toughness. And this kind of alloy is possessed of excellent properties during operation, especially in the fields of rock drilling.

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黃新 孫亞麗 顏杰 周永貴 劉清才.硬質(zhì)合金中WC相的孿生變形機(jī)制[J].稀有金屬材料與工程,2006,35(12):1888~1891.[Huang Xin, Sun Yali, Yan Jie, Zhou Yonggui, Liu Qingcai. The Mechanism of Deformation Twin in WC Phase of Cemented Carbide[J]. Rare Metal Materials and Engineering,2006,35(12):1888~1891.]
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  • 收稿日期:2006-01-10
  • 最后修改日期:2006-06-07
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