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低溫退火溫度對(duì)Laves相Cr2Nb固相熱反應(yīng)合成的影響
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TG146.15

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國(guó)家自然科學(xué)基金(50474009):航空科學(xué)基金(05G56003):江西省自然科學(xué)基金(0350045):江西省教育廳科技項(xiàng)目;江西省材料科學(xué)與工程研究中心基金(ZX200301002)


Effects of Annealing Temperature on Laves Phase Cr2Nb Synthesizing by Solid Phase Thermal Reaction
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    摘要:

    研究了退火時(shí)間為3h時(shí),退火溫度對(duì)Cr-Nb機(jī)械合金化(MA)粉的Laves相Cr2Nb固相熱反應(yīng)合成的影響規(guī)律,獲得了30hMA粉在退火時(shí)間為3h時(shí)能使Laves相Cr2Nb固相熱反應(yīng)合成充分進(jìn)行的最低退火溫度。優(yōu)化出的cr2Nb固相熱反應(yīng)合成低溫退火溫度,可為通過MA+熱壓(或燒結(jié))工藝路線制備具有微/納米晶結(jié)構(gòu)的高強(qiáng)高韌Cr2Nb合金或Cr2Nb基復(fù)合材料提供理論指導(dǎo)。

    Abstract:

    Using Cr-Nb MA powders ball milled for 30 h then annealed for 3 h, the effects of annealing temperature on Laves phase Cr2Nb synthesizing by solid phase thermal reaction have been investigated. The lowest annealing temperature of the powder for full synthesizing of Laves phase Cr2Nb was obtained. The optimized low temperature annealing parameters for Laves phase Cr2Nb synthesizing by solid phase thermal reaction can theoretically provide guidance for preparing both high strength and high tough Cr2Nb alloy or Cr2Nb-based composite with micro- / nano-grains by a process of mechanical alloying followed by a hot pressing or sintering.

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魯世強(qiáng) 肖璇 李鑫 董顯娟 王克魯 賀躍輝.低溫退火溫度對(duì)Laves相Cr2Nb固相熱反應(yīng)合成的影響[J].稀有金屬材料與工程,2006,35(10):1535~1538.[Lu Shiqiang, Xiao Xuan, Li Xin, Dong Xianjuan, Wang Kelu, He Yuehui. Effects of Annealing Temperature on Laves Phase Cr2Nb Synthesizing by Solid Phase Thermal Reaction[J]. Rare Metal Materials and Engineering,2006,35(10):1535~1538.]
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  • 收稿日期:2005-09-26
  • 最后修改日期:2006-04-18
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