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
脈沖磁場對Mg-Gd-Y-Zr合金凝固及力學(xué)性能的影響
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:

國家自然科學(xué)基金項(xiàng)目資助（50774075）


Effect of the Pulsed Magnetic Field on the Solidification and Mechanical Properties of Mg-Gd-Y-Zr Alloy
Author:
Affiliation:

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
    • |
  • 文章評論
    摘要:

    在Mg-Gd-Y-Zr合金凝固過程中施加不同頻率的脈沖磁場，研究脈沖磁場對Mg-Gd-Y-Zr合金凝固的影響。實(shí)驗(yàn)結(jié)果表明，脈沖磁場使Mg-Gd-Y-Zr合金晶粒細(xì)化，在頻率為5 Hz條件下獲得最佳的晶粒細(xì)化效果，平均晶粒尺寸從未加脈沖磁場條件下的65 mm細(xì)化到37 mm。脈沖磁場的攪拌導(dǎo)致熔體磁過冷及熔體溫度梯度降低是晶粒細(xì)化的主要原因。脈沖磁場的施加使抗拉強(qiáng)度和延伸率較常規(guī)鑄造合金分別提高了4.8%、78.5%。

    Abstract:

    The effect of the frequency of the pulsed magnetic field on Mg-Gd-Y-Zr alloy during solidification was investigated. When the pulsed magnetic field is applied to Mg-Gd-Y-Zr alloy during the solidification process, the grain refinement is achieved. The average grain size of the as-cast Mg-Gd-Y-Zr alloy is from 65 mm without the pulsed magnetic filed to 37 mm with the pulsed magnetic field of 5 Hz. Grain refinement of Mg-Gd-Y-Zr alloy is due to the electromagnetic undercooling and reduction of temperature gradient by the vibration of melt resulted from the pulsed magnetic field. Compared those casting method with traditional one, the tensile strength and elongation are increased by 4.8% and 78.5%, respectively

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

汪 彬,楊院生,周吉學(xué),童文輝.脈沖磁場對Mg-Gd-Y-Zr合金凝固及力學(xué)性能的影響[J].稀有金屬材料與工程,2009,38(3):519~522.[Wang Bi, Yang Yuansheng, Zhou Jixue, Tong Wenhui. Effect of the Pulsed Magnetic Field on the Solidification and Mechanical Properties of Mg-Gd-Y-Zr Alloy[J]. Rare Metal Materials and Engineering,2009,38(3):519~522.]
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:2008-02-28
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: