| 化学成分对Ti（C,N）基金属陶瓷断裂韧性的影响 |
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| 引用本文： | 刘宁,熊惟皓.化学成分对Ti（C,N）基金属陶瓷断裂韧性的影响[J].粉末冶金技术,1999,17(4):269-272. |
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| 作者姓名： | 刘宁 熊惟皓 |
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| 作者单位： | [1]合肥工业大学材料学院 [2]华中理工大学材料学院 |
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| 基金项目： | 华中理工大学模具技术国家重点试验室基金!98-9 |
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| 摘 要： | 研究了化学成分对金属陶瓷断裂性和组织的影响，结果表明，当ＷＣ加和量为１０％，Ｍｏ的加入量为１５％时，可获得较高的断裂韧性，随ＮｂＣ，ＴａＣ或（Ｎｂ，Ｔａ）Ｃ的加入量增加，断裂韧性单调下降，金属相对陶瓷相润湿性的降低是导致断裂韧性降低的主要原因。
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| 关 键 词： | 化学成分 金属陶瓷 断裂韧性 氮化钛 碳化钛 |
EFFECT OF CHEMICAL COMPOSITION ON THE FRACTURE TOUGHNESS OF Ti(C, N) BASED CERMETS |
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| Liu Ning,Jiang Yong,Lu Qingrong,Xiong Weihao,Cui Kun Hu zhenhua.EFFECT OF CHEMICAL COMPOSITION ON THE FRACTURE TOUGHNESS OF Ti(C, N) BASED CERMETS[J].Powder Metallurgy Technology,1999,17(4):269-272. |
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| Authors: | Liu Ning Jiang Yong Lu Qingrong Xiong Weihao Cui Kun Hu zhenhua |
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| Abstract: | The effect of chemical composition on the fracture toughness and microstructure has been studied. The results have shown that the cermet is of high fracture toughness value when the contents of tungsten carbide and molybdenum are 10% and 15 % respectively. The fracture toughness decreases linely with increasing the content of NbC,TaC or (Nb, Ta)C. low wettability of metals for ceramics is the main reason of low fracture toughness value. |
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| Keywords: | chemical composition Ti(C N) based cermets fracture toughness |
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