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不銹鋼纖維多孔材料拉伸性能研究
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國家“973”計劃項目(2011CB610302);國家自然科學(xué)基金(51074130, 51134003);國家科技支撐計劃項目(2012BAC02B05);陜西省科技統(tǒng)籌創(chuàng)新工程計劃項目(2011KTCQ01-32)


Tensile Properties of Stainless Steel Fiber Porous Materials
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    摘要:

    以316L不銹鋼纖維氈為原料,采用不同的燒結(jié)工藝,制備出孔隙度為70%~95%的不銹鋼纖維多孔材料,研究了纖維絲徑、孔隙度、燒結(jié)溫度和保溫時間對其拉伸性能的影響。研究表明,不銹鋼纖維多孔材料的拉伸過程主要分為3個階段:彈性階段、塑性變形階段和斷裂階段。纖維越細,多孔材料的抗拉強度越高; 隨著孔隙度的增加,多孔材料的抗拉強度逐漸降低;提高燒結(jié)溫度或延長保溫時間,均會提高多孔材料的抗拉強度。

    Abstract:

    316L stainless steel fiber felt was used as raw material and the porous materials with porosity of 70%~95% were prepared by different sintering techniques. Furthermore, the effects of diameter of fiber, porosity, sintering temperature and holding time on tensile strength were investigated. The results indicate that the tensile process of the porous materials with stainless steel fiber can be divided into three stages: elastic stage, plastic deformation stage and fracture stage. Moreover, the tensile strength gradually decreases with the increasing of the diameter of fiber and porosity. In addition, the tensile strength of porous materials increases with the sintering temperature or holding time increasing.

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劉懷禮,王建忠,湯慧萍.不銹鋼纖維多孔材料拉伸性能研究[J].稀有金屬材料與工程,2014,43(8):2023~2026.[Liu Huaili, Wang Jianzhong, Tang Huiping. Tensile Properties of Stainless Steel Fiber Porous Materials[J]. Rare Metal Materials and Engineering,2014,43(8):2023~2026.]
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  • 收稿日期:2013-09-06
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  • 在線發(fā)布日期: 2015-01-04
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