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燒結(jié)工藝對粉末燒結(jié)多孔材料微觀結(jié)構(gòu)與力學(xué)性能影響
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西安交通大學(xué) 材料與科學(xué)工程學(xué)院,西北有色金屬研究院

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國家自然科學(xué)基金資助(50674076)；國家重點863項目(2012AA03A610)


Effect of Sinter Process on Microstructure and Mechanical Properties of Powder Metallurgy Porous Materials
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    本文進行了燒結(jié)氣氛和燒結(jié)溫度對支撐體孔徑、透過性能影響的研究。環(huán)拉實驗結(jié)果表明,氫氣燒結(jié)樣品的抗拉強度87.56MPa,氫氣+氯化銨活化燒結(jié)樣品115.20MPa,強度提高了30%。通過燒結(jié)溫度對支撐體力學(xué)性能影響的研究,得到了支撐體致密度和力學(xué)性能之間的關(guān)系,可實現(xiàn)通過測試多孔材料的密度來預(yù)測多孔材料的強度。

    Abstract:

    The effects of sinter atmosphere and sinter temperature on pore radius and permeability of porous support were investigated in the present paper. Ring tensile resultes show that atmosphere of H2 sintered sample tensile strength is 87.56 MPa and an activation atmosphere of H2 adding 0.2wt% NH4Cl sintered sample tensile strength is 115.20 MPa, the strength of an activationsintered sample is enhanced 30 percent. The effects of sinter temperature on mechanical properties of porous support were also investigated. The relationship between density of porous support and mechanical properties was obtained. The relationship could be used to forecast strength of porous materials by test density of the porous materials.

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汪強兵,李廣忠 湯慧萍 楊保軍 奚正平 王培.燒結(jié)工藝對粉末燒結(jié)多孔材料微觀結(jié)構(gòu)與力學(xué)性能影響[J].稀有金屬材料與工程,2017,46(9):2684~2687.[wangqiangbing, qiangbingwang. Effect of Sinter Process on Microstructure and Mechanical Properties of Powder Metallurgy Porous Materials[J]. Rare Metal Materials and Engineering,2017,46(9):2684~2687.]
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  • 收稿日期:2015-07-23
  • 最后修改日期:2016-04-12
  • 錄用日期:2016-04-26
  • 在線發(fā)布日期: 2017-11-29
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