| Ti_3SiC_2弥散强化Cu:一种新的弥散强化铜合金 |
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| 引用本文： | 张毅,周延春. Ti_3SiC_2弥散强化Cu:一种新的弥散强化铜合金[J]. 金属学报, 2000, 0(6) |
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| 作者姓名： | 张毅 周延春 |
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| 作者单位： | 中国科学院金属研究所陶瓷及复合材料研究室!沈阳110015 |
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| 摘 要： | 选用具有高导电、高导热性能的新型陶瓷Ti3SiC2做为弥散强化相，通过与Cu粉末高能球磨混合后，热压成一种新型弥散强化Cu材料机械性能测试表明，随着Ti3SiC2体积分数的提高，弥散强化,Cu的屈服强度和维氏硬度线性上升分析表明Ti3SiC2相的晶粒细化和位错塞积是主要强化机制，当颗粒粗化和团聚后Ti3SiC2的强化效果将明显减弱
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| 关 键 词： | 弥散强化 Cu 机械性能 Ti_3SiC_2 |
Ti_3SiC_2 DISPERSION-STRENGTHENED COPPER:A NEW DISPERSION-STRENGTHENED COPPER ALLOY |
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| ZHANG Yi, ZHOU Yanchun. Ti_3SiC_2 DISPERSION-STRENGTHENED COPPER:A NEW DISPERSION-STRENGTHENED COPPER ALLOY[J]. Acta Metallurgica Sinica, 2000, 0(6) |
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| Authors: | ZHANG Yi ZHOU Yanchun |
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| Abstract: | Ti3SiC2, a new ceramic with high electrical and thermal conductivity, was successfully incorporated into copper as disp ersion-strengthened (DS) phase by mechanical mixing method and hot pressure technology and a new high strength and high conductive DS copper was developed.The results of mechanical properties test show that Ti3SiC2 strengthening effect on copper is significat. With the incorporation of Ti3SiC2, the yield strength and Vickers hardness of copper increaselineally. The strengthening mechanisms of Ti3SiC2 consist of dislocation pile-up and grain refiningThe strengthening effect of Ti3SiC2 on copper was reduced due to particle clustering and coarsening. |
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| Keywords: | dispersion strengthening copper mechanical property Ti_3SiC_2 |
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