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TiAl3相對(duì)原位TiC/Al-4.5Cu復(fù)合材料高溫磨損行為的影響
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西安工業(yè)大學(xué)材料與化工學(xué)院,西安工業(yè)大學(xué)材料與化工學(xué)院,西安工業(yè)大學(xué)材料與化工學(xué)院,西安工業(yè)大學(xué)材化學(xué)院

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TG292

基金項(xiàng)目:

陜西省教育廳科研計(jì)劃項(xiàng)目資助(2013JK0909)和2014年陜西省光電功能材料與器件重點(diǎn)實(shí)驗(yàn)室開放資助(ZSKJ201416).


Effect of TiAl3 Phase on Dry Wear Behaviorof In-situ TiC/Al-4.5Cu Composites at Elevated Temperature
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School of Materials Chemical Engineering,Xi’anSTechnological University,Xi’an,School of Materials Chemical Engineering,Xi’anSTechnological University,Xi’an,School of Materials Chemical Engineering,Xi’anSTechnological University,Xi’an,School of Materials Chemical Engineering,Xi’anSTechnological University,Xi’an

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    摘要:

    采用接觸反應(yīng)法制備了原位TiC/Al-4.5Cu復(fù)合材料，研究了微觀組織中TiAl3相對(duì)復(fù)合材料100-250℃高溫下干摩擦磨損行為的影響。結(jié)果表明：高溫下原位TiC/Al-4.5Cu復(fù)合材料磨損量均隨載荷（15-55N）增加而增加，但含TiAl3相的復(fù)合材料磨損量始終較高。當(dāng)載荷大于35N，復(fù)合材料存在一個(gè)磨損加劇的臨界轉(zhuǎn)變溫度；含TiAl3相的復(fù)合材料該臨界轉(zhuǎn)變溫度較低。TiAl3相的存在降低了復(fù)合材料的耐磨性。

    Abstract:

    In-situ TiC/Al-4.5Cu composites were made by direct reaction synthesis (DRS) and the effect of TiAl3 phase on the dry wear behavior of the in-situ TiC/Al-4.5Cu composites from 100℃ to 250℃ was studied. The results show that the wear loss of in-situ TiC/Al-4.5Cu increases with the load increasing from 15 to 55N at elevated temperature. The wear loss of the composites containing TiAl3 phase is always larger. There is a critical transition temperature (CTT) of severe wear when the load excesses 35N and the composites with TiAl3 phase possess lower CTT. TiAl3 phase degrades the wear resistance of in-situ TiC/Al-4.5Cu composites.

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梁艷峰,董晟全,何子博,李高宏. TiAl3相對(duì)原位TiC/Al-4.5Cu復(fù)合材料高溫磨損行為的影響[J].稀有金屬材料與工程,2017,46(12):3843~3848.[LIANG Yan-feng, DONG Sheng-quan, He Zi-bo, Li Gao-hong. Effect of TiAl3 Phase on Dry Wear Behaviorof In-situ TiC/Al-4.5Cu Composites at Elevated Temperature[J]. Rare Metal Materials and Engineering,2017,46(12):3843~3848.]
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  • 收稿日期:2015-09-21
  • 最后修改日期:2016-02-29
  • 錄用日期:2016-10-18
  • 在線發(fā)布日期: 2018-01-04
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