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
噴丸壓力對(duì)GH3535合金表面狀態(tài)及疲勞性能的影響研究
作者:
作者單位:

1.重慶交通大學(xué) 機(jī)電與車輛工程學(xué)院;2.中國(guó)科學(xué)院上海應(yīng)用物理研究所;3.安徽工業(yè)大學(xué) 現(xiàn)代表界面工程研究中心

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:

國(guó)家自然科學(xué)基金（52071330）；上海市科委項(xiàng)目（19DZ2200300）；中國(guó)科學(xué)院戰(zhàn)略先導(dǎo)專項(xiàng)項(xiàng)目（XDA02004210）；重慶市技術(shù)創(chuàng)新與應(yīng)用發(fā)展重點(diǎn)專項(xiàng)(魯渝科技協(xié)作計(jì)劃項(xiàng)目，cstc2020jscx-lyggX0007)；重慶市研究生導(dǎo)師團(tuán)隊(duì)建設(shè)項(xiàng)目（JDDSTD2019007）；重慶市研究生聯(lián)合培養(yǎng)基地（JDLHPYJD2020032）


Research on the effect of Shot Peening Pressure on the Surface State and Fatigue Properties of GH3535 Alloy
Author:
Affiliation:

1.School of Mechanotronics and Vehicle Engineering, Chongqing Jiaotong University;2.Shanghai Institute of Applied Physics, Chinese Academy of Sciences;3.Research Center of Modern Surface and Interface Engineering, Anhui University of Technology

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:

    分別采用0.3MPa、0.45MPa和0.6MPa噴丸壓力對(duì)GH3535高溫合金表面進(jìn)行噴丸。利用掃描電子顯微鏡（SEM）觀察合金表面形貌、強(qiáng)化層組織結(jié)構(gòu)，通過金相顯微鏡（OM）、維氏硬度計(jì)、X射線應(yīng)力分析儀分析表層晶粒度、表層顯微硬度、表層殘余應(yīng)力分布及X射線衍射峰半高寬。在室溫條件下進(jìn)行高周疲勞實(shí)驗(yàn)，并通過掃描電子顯微鏡（SEM）觀察分析斷口形貌特征。結(jié)果表明:GH3535合金噴丸后表層形成了晶粒細(xì)化層、硬化層和殘余壓應(yīng)力層。且合金表面產(chǎn)生的晶粒細(xì)化層厚度、硬化層厚度以及殘余壓應(yīng)力層厚度均隨著噴丸壓力的增加而提高。噴丸壓力在0.3MPa～0.6MPa范圍內(nèi)，疲勞壽命受噴丸壓力的影響較為敏感，且疲勞壽命隨著噴丸壓力的增加而提高。當(dāng)噴丸壓力為0.6MPa時(shí)，噴丸產(chǎn)生的效果最優(yōu)，疲勞壽命提高了471.1%。噴丸后GH3535合金疲勞壽命的提高得益于合金表面狀態(tài)的改善。

    Abstract:

    The surface of GH3535 superalloy was shot peened with shot peening pressures of 0.3MPa, 0.45MPa and 0.6MPa respectively. The optical profiler and scanning electron microscope (SEM) were used to observe the surface profile morphology of the alloy and the structure of the strengthening layer. Through metallographic microscope (OM), Vickers hardness tester, X-ray stress analyzer, the surface grain size, surface microhardness, surface residual stress distribution and X-ray diffraction peak half-height width are analyzed. The high-cycle fatigue experiment was carried out at room temperature, and the morphological characteristics of the fracture were observed and analyzed by means of scanning electron microscope (SEM). The results show that the grain refinement layer, hardened layer and residual compressive stress layer are formed on the surface of GH3535 alloy after shot peening. And the thickness of the grain refinement layer, the thickness of the hardened layer and the thickness of the residual compressive stress layer produced on the surface of the alloy all increase with the increase of the shot peening pressure.The shot peening pressure is in the range of 0.3MPa to 0.6MPa, and the fatigue life is more sensitive to the impact of shot peening pressure, and the fatigue life increases with the increase of shot peening pressure.When the shot peening pressure is 0.6MPa, the effect of shot peening is the best, and the fatigue life is increased by 471.1%.The increase in fatigue life of GH3535 alloy after shot peening benefited from the improvement of the alloy surface condition.

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

吳培松,張繼祥,周伯謀,薛召露,陸燕玲.噴丸壓力對(duì)GH3535合金表面狀態(tài)及疲勞性能的影響研究[J].稀有金屬材料與工程,2022,51(12):4610~4617.[wupeisong, Zhang Jixiang, Zhou Bomou, Xue Zhaolu, Lu Yanling. Research on the effect of Shot Peening Pressure on the Surface State and Fatigue Properties of GH3535 Alloy[J]. Rare Metal Materials and Engineering,2022,51(12):4610~4617.]
DOI：10.12442/j. issn.1002-185X.20211051

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:2021-11-29
  • 最后修改日期:2022-02-23
  • 錄用日期:2022-03-10
  • 在線發(fā)布日期: 2023-01-19
  • 出版日期: 2022-12-30