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
鋁合金/不銹鋼慣性摩擦焊接頭的組織特性娃和力學(xué)性能研究
作者:
作者單位:

1.清華大學(xué) 材料學(xué)院;2.清華大學(xué);3.鋼鐵研究總院;4.山東大學(xué)

作者簡介:

通訊作者:

中圖分類號:

基金項目:


Microstructure characteristics and tensile strength of aluminum/stainless steel joint welded by inertia friction
Author:
Affiliation:

1.School of Materials Science and Engineering,Tsinghua University;2.Tsinghua University;3.China Iron Steel Research Institute Group;4.School of Materials Science and Engineering,Shandong University

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 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:

    慣性摩擦焊是一種連接異種金屬理想的焊接方法，鋁合金/不銹鋼采用慣性摩擦焊進(jìn)行焊接，并詳細(xì)研究了焊接接頭的形貌、組織、界面成分和力學(xué)性能。結(jié)果表面，在慣性摩擦焊接頭的界面處形成了很薄的金屬間化合物（IMC）反應(yīng)層，該反應(yīng)層主要由Al、Fe元素組成，是富集Si元素的FeAl3相。慣性摩擦焊接頭組織由焊核區(qū)、完全動態(tài)再結(jié)晶區(qū)、熱機(jī)械影響區(qū)和熱影響區(qū)組成。完全動態(tài)再結(jié)晶區(qū)的晶粒小于0.1μm，它的平均寬度為5μm。接頭的顯微硬度最大值出現(xiàn)在不銹鋼側(cè)的完全動態(tài)再結(jié)晶區(qū)，其值為395.8 HV。慣性摩擦焊中，初始轉(zhuǎn)速對接頭的拉伸性能有顯著影響。當(dāng)初始轉(zhuǎn)速為1200rpm時，鋁/鋼慣性摩擦焊接頭的最大拉伸強度為323MPa，達(dá)到鋁合金母材強度的92%。

    Abstract:

    IFW method has the potential of being ideal technology to weld dissimilar materials, aluminum and stainless steel were welded by inertia friction, and the morphology, microstructure, interfacial composition and mechanical properties of Al/steel joints were investigated. Results showed that a thin IMC reaction layer was found at the welding interface in the joint, and the IMC was consisted of Al, Fe and high concentration Si. The microstructure of joint contained weld nugget zone, fully dynamic recrystallized zone, thermal mechanically affected zone and heat affected zone. The grain of fully dynamic recrystallized zone (FDRZ) was below 0.1 μm, and the average width of FDRZ in the joint was about 5 μm. The maximum hardness was in the FDRZ, and the maximum value was 395.8 HV in the joint. Tensile strength of joint was influenced by the rotational speed. When the rotational speed was 1100 rpm, the joint reached to the maximum tensile strength of 323 MPa. The high tensile strength reason should be related to the thickness of IMC at the weld interface.

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

劉永,趙海燕,彭云,馬肖飛.鋁合金/不銹鋼慣性摩擦焊接頭的組織特性娃和力學(xué)性能研究[J].稀有金屬材料與工程,2021,50(3):795~801.[Yong Liu, Haiyan Zhao, Yun Peng, Xiaofei Ma. Microstructure characteristics and tensile strength of aluminum/stainless steel joint welded by inertia friction[J]. Rare Metal Materials and Engineering,2021,50(3):795~801.]
DOI：10.12442/j. issn.1002-185X.20200092

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:2020-02-16
  • 最后修改日期:2020-03-18
  • 錄用日期:2020-03-19
  • 在線發(fā)布日期: 2021-04-02
  • 出版日期: