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

+高級檢索
Effect of Hot Extrusion on Microstructures and Properties of TiB2/AZ31 Magnesium Based Composites
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:


Effect of Hot Extrusion on Microstructures and Properties of TiB2/AZ31 Magnesium Based Composites
Author:
Affiliation:

Fund Project:

National?High?Technology?Research?and Development Program of China (2009AA03Z525); National Natural Science Foundation of China (50875031); Aviation Science Foundation of China (20095263005) and Youth Foundation of Dalian University of Technology (2006)

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

    采用原位合成-半固態(tài)攪拌鑄造法制備了TiB2/AZ31鎂基復(fù)合材料，研究了熱擠壓對TiB2/AZ31鎂基復(fù)合材料組織和力學(xué)性能的影響。結(jié)果表明：熱擠壓不僅能顯著細(xì)化合金組織，而且能有效改善TiB2顆粒分布的均勻性。與鑄態(tài)AZ31鎂合金相比，鑄態(tài)TiB2/AZ31鎂基復(fù)合材料的硬度、抗拉強度都有一定程度的提高。經(jīng)過熱擠壓后，TiB2/AZ31鎂基復(fù)合材料的硬度和抗拉強度分別比基體合金提高了126.2%和98.8%，達到950 MPa和322 MPa。磨損表面形貌顯示，TiB2顆粒的引入以及對TiB2/AZ31鎂基復(fù)合材料進行熱擠壓，都可有效地提高材料的耐磨性。

    Abstract:

    The TiB2/AZ31 magnesium based composite was fabricated by the in-situ synthesis-semisolid stirring technique, and its microstructure and mechanical property were studied. The results show that hot extrusion not only significantly refines the microstructure of the alloy, but also effectively improves the uniformity of TiB2 particles distribution. Compared with as-cast AZ31 magnesium alloy, the hardness and tensile strength of as-cast TiB2/AZ31 magnesium based composites increase to some extent (unobvious), but the elongation decreases. However, after extrusion, the hardness and the tensile strength of the as-extruded TiB2/AZ31 magnesium based composite increase by 126.2% and 98.8%, reaching 950 MPa and 322 MPa, respectively, and the elongation is also higher. Adding of TiB2 particles to AZ31 alloy and hot extrusion are effective ways to improve the wear resistance of AZ31 magnesium alloy.

    參考文獻
    相似文獻
    引證文獻
引用本文

齊國紅,房燦峰,白 云,郝 海,張興國. Effect of Hot Extrusion on Microstructures and Properties of TiB2/AZ31 Magnesium Based Composites[J].稀有金屬材料與工程,2011,40(8):1339~1343.[Qi Guohong, Fang Canfeng, Bai Yun, Hao Hai, Zhang Xingguo. Effect of Hot Extrusion on Microstructures and Properties of TiB2/AZ31 Magnesium Based Composites[J]. Rare Metal Materials and Engineering,2011,40(8):1339~1343.]
DOI：[doi]

復(fù)制
文章指標(biāo)
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2010-08-28
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: