最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級(jí)檢索
含B2-CuZr相CuZr基塊體金屬玻璃復(fù)合材料應(yīng)變速率敏感性的變化
DOI:
作者:
作者單位:

西安交通大學(xué),西安交通大學(xué),西安交通大學(xué),長(zhǎng)安大學(xué),西安交通大學(xué) 材料學(xué)院

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

TG139

基金項(xiàng)目:

國(guó)家自然科學(xué)基金項(xiàng)目（面上項(xiàng)目，重點(diǎn)項(xiàng)目，重大項(xiàng)目）;國(guó)家教育部博士點(diǎn)基金


Strain rate sensitivity variation in CuZr-based bulk metallic glass composites containing B2-CuZr phase
Author:
Affiliation:

Xi'an Jiaotong University,Xi'an Jiaotong University,Xi'an Jiaotong University,Chang'an University,Xi'an Jiaotong University

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評(píng)論
    摘要:

    通過應(yīng)變速率跳躍模式下的單軸壓縮試驗(yàn)，研究了含有不同體積分?jǐn)?shù)B2-CuZr相的CuZr基塊體金屬玻璃復(fù)合材料的應(yīng)變速率敏感性。研究結(jié)果發(fā)現(xiàn)，隨著B2-CuZr相體積分?jǐn)?shù)的增加，在3.7×10?5 s?1至3.7×10?3 s?1的應(yīng)變速率范圍中，該復(fù)合材料的應(yīng)變速率敏感指數(shù)可由負(fù)值變化為正值。但是，對(duì)于B2-CuZr相體積分?jǐn)?shù)高達(dá)約80%的復(fù)合材料，其應(yīng)變速率敏感指數(shù)的正值仍然是反常的低。這一現(xiàn)象與B2-CuZr相自身力學(xué)行為所呈現(xiàn)的有限應(yīng)變速率依賴性有關(guān)，是由于變形過程中B2-CuZr相的馬氏體相變效應(yīng)所致。研究結(jié)果顯示，CuZr基塊體金屬玻璃復(fù)合材料的極限應(yīng)變速率敏感性受制于B2-CuZr相。

    Abstract:

    Strain rate sensitivity (SRS) of CuZr-based bulk metallic glass composites (BMGCs) containing a B2-CuZr phase with different volume fractions were investigated by performing uniaxial compression tests in a strain-rate-jump mode. It was found that the SRS exponents of the BMGCs could vary from negative to positive within the strain-rate range from 3.7×10?5 s?1 to 3.7×10?3 s?1 with increasing the B2-CuZr phase volume fraction. However, the positive SRS exponent of the BMGC with a higher B2-CuZr phase volume fraction of up to about 80% was still unexpectedly low. This was attributed to the limited strain-rate-dependence of mechanical behavior of the B2-CuZr phase, which was induced by the martensitic transformation effect of the phase during deformation. It appears that the SRS ceiling of the CuZr-based BMGCs is controlled by the B2-CuZr phase.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

魏然,昌云,楊森,張長(zhǎng)軍,賀林.含B2-CuZr相CuZr基塊體金屬玻璃復(fù)合材料應(yīng)變速率敏感性的變化[J].稀有金屬材料與工程,2016,45(3):542~547.[Wei Ran, Chang Yun, Yang Sen, Zhang Changjun, He Lin. Strain rate sensitivity variation in CuZr-based bulk metallic glass composites containing B2-CuZr phase[J]. Rare Metal Materials and Engineering,2016,45(3):542~547.]
DOI：[doi]

復(fù)制
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2014-02-16
  • 最后修改日期:2014-06-16
  • 錄用日期:2014-07-01
  • 在線發(fā)布日期: 2016-07-06
  • 出版日期: