-6mm3/N.m。綜上所述,FeCrCoNiNb高熵合金熔覆層具有良好的納米硬度和磨損性能。"/>

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
激光熔覆FeCoCrNiNb高熵合金涂層組織及力學(xué)性能
作者:
作者單位:

沈陽工程學(xué)院機(jī)械學(xué)院

作者簡介:

通訊作者:

中圖分類號:

基金項(xiàng)目:

國家自然科學(xué)基金資助(62001312)


Microstructure and mechanical properties of laser cladding FeCoCrNiNb high entropy alloy coating
Author:
Affiliation:

School of Mechanical Engineering,Shenyang Institute of Engineering

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:

    采用激光熔覆技術(shù)在304不銹鋼表面制備了FeCrCoNi、FeCrCoNiNb等摩爾比高熵合金熔覆層,研究了Nb元素對熔覆層組織及性能的影響。采用XRD、SEM、EDS、納米壓痕測試和王府干滑動摩擦磨損實(shí)驗(yàn)等方法,纖細(xì)分析了兩種高熵合金熔覆層線組成、組織演變、納米硬度及磨損行為及磨損機(jī)理。結(jié)果表明：FeCrCoNiNb高熵合金熔覆層相組成為FCC固溶體及富Nb-Laves相。FeCrCoNiNb熔覆層的納米硬度(H)、彈性模量(H)、H/E和H3/E2分別為6.066GPa、231.54GPa、0.0262和0.0042,遠(yuǎn)高于FeCrCoNi熔覆層的3.456GPa、209.48GPa、0.0165和0.00094。隨著納米硬度的增加,FeCrCoNiNb熔覆層的摩擦系數(shù)和比磨損率也隨之降低,分別為0.519和2.54×10-6mm3/N.m。綜上所述,FeCrCoNiNb高熵合金熔覆層具有良好的納米硬度和磨損性能。

    Abstract:

    A FeCrCoNiNb high entropy alloy (HEA) coating was deposited by laser cladding, aiming at studying the influence of Nb addition on hardness and wear resistance. The formed phases, microstructural evolution, nano-hardness and wear behavior of the FeCrCoNiNb HEA coating was clarified by using XRD, SEM, nano-hardness measurement and friction-wear measurement. The results showed that the FeCrCoNiNb high-entropy alloy coating were composed by FCC solid solution and Nb-Laves phase. The nano-hardness (H), elastic modulus (H), H/E and H3/E2 of FeCrCoNiNb coating were 6.066GPa, 231.54GPa, 0.0262 and 0.0042, respectively. Which were much higher than FeCrCoNi coating of 3.456GPa, 209.48GPa, 0.0165 and 0.00094. With the increased of nano-hardness, the friction coefficient and specific wear rate of FeCrCoNiNb coating also decreased, which were 0.519 and 2.54×10-6mm3/N.m, respectively. The addition of Nb can effectively improve the nano-hardness and wear resistance of FeCrCoNi high-entropy alloy coating.

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

王石,王琳,尹曉偉.激光熔覆FeCoCrNiNb高熵合金涂層組織及力學(xué)性能[J].稀有金屬材料與工程,2023,52(4):1483~1489.[Wang Shi, Wang Lin, Yin Xiaowei. Microstructure and mechanical properties of laser cladding FeCoCrNiNb high entropy alloy coating[J]. Rare Metal Materials and Engineering,2023,52(4):1483~1489.]
DOI：10.12442/j. issn.1002-185X.20220892

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:2022-11-11
  • 最后修改日期:2022-12-07
  • 錄用日期:2022-12-13
  • 在線發(fā)布日期: 2023-05-01
  • 出版日期: 2023-04-25