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
鋁基可磨耗封嚴(yán)涂層的動態(tài)壓縮力學(xué)行為
作者:
作者單位:

北京理工大學(xué)材料學(xué)院

作者簡介:

通訊作者:

中圖分類號:

TG174.4

基金項目:


Dynamic Compressive Behaviors of Aluminum-Based Abradable Seal Coatings
Author:
Affiliation:

School of Materials Science and Engineering,Beijing Institute of Technology

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:

    以大氣等離子噴涂制備的鋁硅-氮化硼和鋁硅-聚苯酯可磨耗封嚴(yán)涂層為材料,利用XRD、OM、SEM、準(zhǔn)靜態(tài)壓縮、動態(tài)壓縮等手段,研究了兩種鋁基封嚴(yán)涂層的微觀組織及其在不同應(yīng)變率下的壓縮性能和損傷特征。結(jié)果表明,鋁硅-氮化硼和鋁硅-聚苯酯涂層主要由α-Al固溶體相、共晶Si相、可磨耗第二相(氮化硼/聚苯酯)以及孔隙組成；準(zhǔn)靜態(tài)及動態(tài)加載下兩種涂層的真應(yīng)力-真應(yīng)變曲線均未出現(xiàn)明顯的屈服平臺,鋁硅-氮化硼涂層的動態(tài)抗壓強(qiáng)度高于鋁硅-聚苯酯涂層；動態(tài)加載下涂層內(nèi)部顆粒發(fā)生劇烈變形,主要損傷方式為顆粒間界面的脫粘開裂以及內(nèi)部缺陷處裂紋的萌生及擴(kuò)展。

    Abstract:

    Two kinds of aluminum-based abradable seal coatings (AlSi-hBN and AlSi-PHB) were prepared by atmospheric plasma spraying. XRD, OM, SEM, quasi-static and dynamic compression tests were utilized to research the microstructure, compressive properties under different strain rates and relevant damage characteristics of the seal coatings. The results indicated that AlSi-hBN and AlSi-PHB seal coatings were mainly composed of α-Al solid solution phase, eutectic Si phase, abradable second phase (hBN/PHB) and pores. No obvious yield platform was observed on compressive true stress-true strain curves of two coatings under both quasi-static and dynamic loading conditions. The dynamic compressive strength of AlSi-hBN coating was higher than that of AlSi-PHB coating. Particles inside the coatings were severely deformed under dynamic loading. The main damage forms were debonding and cracking at the interparticle interface as well as initiation and propagation of cracks at the internal defects.

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

金辰日,郭丹,楊素媛,何舒陽.鋁基可磨耗封嚴(yán)涂層的動態(tài)壓縮力學(xué)行為[J].稀有金屬材料與工程,2020,49(11):3828~3834.[Jin Chenri, Guo Dan, Yang Suyuan, He Shuyang. Dynamic Compressive Behaviors of Aluminum-Based Abradable Seal Coatings[J]. Rare Metal Materials and Engineering,2020,49(11):3828~3834.]
DOI：10.12442/j. issn.1002-185X.20190988

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:2019-11-25
  • 最后修改日期:2019-12-24
  • 錄用日期:2020-01-03
  • 在線發(fā)布日期: 2020-12-09
  • 出版日期: