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熱壓縮下CuW合金的力學(xué)性能及組織研究
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西安工程大學(xué)機(jī)電工程學(xué)院,西藏民族學(xué)院教育學(xué)院,西安工程大學(xué)機(jī)電工程學(xué)院,西安工程大學(xué)機(jī)電工程學(xué)院,西安理工大學(xué)材料科學(xué)與工程學(xué)院

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國家高技術(shù)研究發(fā)展計劃（863計劃）;創(chuàng)新研究群體科學(xué)基金


Study on the mechanical behaviors and microstructure of CuW alloy under hot compression
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College of Mechanical and Electrical Engineering,Xi’an Polytechnic University,Xi’an,School of Education,Xizang Minzu University,College of Mechanical and Electrical Engineering,Xi’an Polytechnic University,Xi’an,College of Mechanical and Electrical Engineering,Xi’an Polytechnic University,Xi’an,Key Laboratory of Electrical Materials and Infiltration,Xi’an University of Technology,Xi’an

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    摘要:

    考慮到高溫下的應(yīng)用，對WCu合金及鎢骨架施加熱壓縮載荷，分析不同的溫度及應(yīng)變速率下的WCu合金組織及力學(xué)行為。分析結(jié)果表明：WCu合金的應(yīng)力-應(yīng)變行為主要取決于溫度的變化，熱壓縮后組織內(nèi)燒結(jié)頸大部分消失，WCu合金在300℃的熱壓縮下出現(xiàn)明顯的塑性流，而在900℃下鎢顆?；揪鶆蚍植肌Ａ硗?，高應(yīng)變速率下鎢骨架的強(qiáng)度有所減小，不同應(yīng)變速率下的鎢顆粒出現(xiàn)光滑的晶粒及開裂。

    Abstract:

    Considering the application of WCu alloy at elevated temperature, hot compression was applied on WCu alloy and W skeleton to analyze the microstructure and mechanical behaviors at different temperature and strain rate. The results show that the stress-strain behaviors of WCu alloy is affected mainly by the temperature, the sintering necks disappear mostly after hot compression, and the plastic flow of WCu alloy appear at 300℃ while W particles are mostly homogeneous approximately at 900℃. In addition, the strength of W skeleton is reduced slightly at high strain rate, round grains and cracking appear at the substructure of W particle under different strain rate.

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王彥龍,王寶娥,吳沙沙,王俊勃,梁淑華.熱壓縮下CuW合金的力學(xué)性能及組織研究[J].稀有金屬材料與工程,2016,45(9):2258~2262.[Yanlong Wang, Baoe Wang, Shasha Wu, Junbo Wang, Shuhua Liang. Study on the mechanical behaviors and microstructure of CuW alloy under hot compression[J]. Rare Metal Materials and Engineering,2016,45(9):2258~2262.]
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  • 收稿日期:2015-12-28
  • 最后修改日期:2016-01-17
  • 錄用日期:2016-02-24
  • 在線發(fā)布日期: 2016-10-09
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