本文選題：多孔金屬纖維燒結(jié)氈 + 拉伸性能��； 參考：《Transactions of Nonferrous Metals Society of China》2015年06期

【摘要】：基于多齒刀具切削及高溫固相燒結(jié)銅纖維技術(shù)制備具有三維網(wǎng)狀結(jié)構(gòu)的多孔金屬纖維燒結(jié)氈(PMFSS)。通過(guò)單向拉伸試驗(yàn)研究纖維長(zhǎng)度及自然時(shí)效處理對(duì)PMFSS拉伸性能的影響。結(jié)果表明:增大纖維長(zhǎng)度有利于提高PMFSS的拉伸強(qiáng)度;選用15 mm中等纖維長(zhǎng)度有利于PMFSS獲得最優(yōu)的伸長(zhǎng)率,可達(dá)到13.5%。經(jīng)1個(gè)月的自然時(shí)效處理后,PMFSS的拉伸強(qiáng)度都出現(xiàn)明顯下降,但除5 mm短纖維PMFSS的伸長(zhǎng)率明顯提高,其他PMFSS伸長(zhǎng)率基本保持不變。同時(shí),還對(duì)PMFSS的斷裂形式進(jìn)行表征與分析。
[Abstract]:The porous metal fiber sintered felts with three dimensional mesh structure were prepared based on multi-tooth cutting and high temperature solid sintering copper fiber technology. The effects of fiber length and natural aging treatment on the tensile properties of PMFSS were studied by uniaxial tensile test. The results show that the tensile strength of PMFSS can be improved by increasing the fiber length, and the optimum elongation of PMFSS can be obtained by selecting 15 mm medium fiber length, which can reach 13.5%. After one month of natural aging treatment, the tensile strength of PMFSS decreased obviously, but the elongation of PMFSS of 5 mm short fiber increased obviously, but the elongation of other PMFSS remained basically unchanged. At the same time, the fracture form of PMFSS was characterized and analyzed.
【作者單位】： 華南理工大學(xué)機(jī)械與汽車(chē)工程學(xué)院;
【基金】：Projects(51475172,51275180,51375177) supported by the National Natural Science Foundation of China Project(S2013040016899) supported by the Natural Science Foundation of Guangdong Province,China Projects(2013ZM0003,2013ZZ017) supported by the Fundamental Research Funds for the Central Universities,South China University of Technology,China
【分類(lèi)號(hào)】：TG146.11;TB383.4

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本文編號(hào)：2042908