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
雙時(shí)效對(duì)Ti-4Al-5Mo-6Cr-5V-1Nb合金顯微組織和力學(xué)性能的影響
作者:
作者單位:

1.上海大學(xué) 材料基因組工程研究院;2.上海大學(xué) 材料科學(xué)與工程學(xué)院 省部共建高品質(zhì)特殊鋼冶金與制備國家重點(diǎn)實(shí)驗(yàn)室;3.上海大學(xué) 材料科學(xué)與工程學(xué)院;4.中國航空制造技術(shù)研究院 材料應(yīng)用研究部

作者簡介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:

航空科學(xué)基金資助(項(xiàng)目號(hào)2017ZF25022)


Effect of Duplex Aging on Microstructure and Mechanical Property of Ti-4Al-5Mo-6Cr-5V-1Nb alloy
Author:
Affiliation:

Materials Genome Institute,Shanghai 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:

    研究了固溶、固溶后單時(shí)效以及固溶后雙時(shí)效處理對(duì)Ti-4Al-5Mo-6Cr-5V-1Nb合金組織和力學(xué)性能的影響。結(jié)果表明,820 ℃下固溶0.5 h后,合金中的α相完全溶解;單/雙時(shí)效合金的硬度均隨時(shí)效時(shí)間增加先升高后降低;合金經(jīng)300 ℃/8 h+500 ℃/8 h雙時(shí)效處理后可達(dá)到458 HV的峰值硬度,1462 MPa抗拉強(qiáng)度以及3.4%延伸率,其強(qiáng)度比原始合金高6%,也高于單時(shí)效合金。界面能計(jì)算結(jié)果表明ω相使α相形核的阻力降低50%,促進(jìn)了α相的析出并細(xì)化α板條,從而提升合金的硬度,強(qiáng)度及塑性。

    Abstract:

    Effects of solution treatment, single aging treatment, and duplex aging treatment on the microstructure and mechanical property of Ti-4Al-5Mo-6Cr-5V-1Nb alloy are studied. After the solution treatment at 820 ℃ for 0.5 h, α phase completely dissolved. The hardness of single/ duplex aging treated alloys both increase at the beginning and then decrease. The alloy duplex aging treated at 300 ℃ for 8 h and 500 ℃ for 8 h processes the peak-aging hardness of 458 HV, ultimate tensile strength (UTS) of 1462 MPa and elongation of 3.4%, whose UTS is 6% higher than original alloy and even higher than single aging treated alloy. The calculation of interface energy indicates that ω phase can promote the precipitation of α phase and the refinement of α lath by decreasing the nucleation resistance of α phase by 50%, thus increasing the hardness, strength, and elongation of alloys.

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

郭彥霖,羅 群,王國旗,劉 斌,陳 瑋,李 謙.雙時(shí)效對(duì)Ti-4Al-5Mo-6Cr-5V-1Nb合金顯微組織和力學(xué)性能的影響[J].稀有金屬材料與工程,2020,49(4):1395~1401.[Guo Yanlin, Luo Qun, Wang Guoqi, Liu bin, Chen Wei, Li Qian. Effect of Duplex Aging on Microstructure and Mechanical Property of Ti-4Al-5Mo-6Cr-5V-1Nb alloy[J]. Rare Metal Materials and Engineering,2020,49(4):1395~1401.]
DOI:10.12442/j. issn.1002-185X.20190028

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:2019-01-08
  • 最后修改日期:2019-05-09
  • 錄用日期:2019-05-14
  • 在線發(fā)布日期: 2020-05-07
  • 出版日期: