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
GH5188高溫合金組織特征及冷熱加工過(guò)程組織演變
DOI:
作者:
作者單位:

北京科技大學(xué)材料與科學(xué)學(xué)院,北京科技大學(xué)材料與科學(xué)學(xué)院,北京科技大學(xué)材料與科學(xué)學(xué)院,北京科技大學(xué)材料與科學(xué)學(xué)院,北京北冶功能材料有限公司

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:

國(guó)家高技術(shù)研究發(fā)展計(jì)劃（863計(jì)劃）


Microstructure evolution during hot and cold working process and microstructure characteristics of GH5188 superalloy
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問(wèn)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:

    為了給控制生產(chǎn)工藝、優(yōu)化性能提供理論參考，利用SEM、EDS和Thermo-Calc熱力學(xué)軟件研究了GH5188鈷基高溫合金生產(chǎn)加工過(guò)程中的組織演變及熱處理工藝。結(jié)果表明：GH5188合金主要相組成為γ相、M6C和 M23C6，采用1200°C/20h的均勻化制度可明顯消除鑄態(tài)組織偏析；熱軋態(tài)組織晶粒細(xì)小且有大量碳化物沿著軋向平行析出；冷軋態(tài)組織晶粒扭曲變形嚴(yán)重，顆粒狀M6C為主要析出相，當(dāng)退火溫度高于1170℃，晶界處的二次碳化物基本回溶，再結(jié)晶晶粒能夠正常長(zhǎng)大。

    Abstract:

    In order to provide theoretical guidance for production process contorl and performance optimization, the microstructure evolution and heat treatment process in the production procecss of GH5188 cobalt-base superalloy were investigated by SEM, EDS and Thermo-Calc software. The result indicates that the main phases of GH5188 alloy include γ, M6C and M23C6. The 1200°C/20h could reduce segregation of as-cast microstructure. Hot-rolled microstructure have a fine grain size, and a large number of aligned carbides precipitate along rolling direction. In the cold-rolled microstructure with serious grain deformation, granular M6C was found to be predominant phase. when the annealing temperature is higher than 1170°C, secondary carbides at the grain boundaries dissolved back into γ and recrystallized grain can grow in normal way.

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

高亞偉,董建新,姚志浩,張麥倉(cāng),牛永吉. GH5188高溫合金組織特征及冷熱加工過(guò)程組織演變[J].稀有金屬材料與工程,2017,46(10):2922~2928.[Gao Yawei, Dong Jianxin, Yao Zhihao, Zhang Maicang, Niu Yongji. Microstructure evolution during hot and cold working process and microstructure characteristics of GH5188 superalloy[J]. Rare Metal Materials and Engineering,2017,46(10):2922~2928.]
DOI：[doi]

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:2015-06-21
  • 最后修改日期:2015-07-27
  • 錄用日期:2015-09-07
  • 在線發(fā)布日期: 2017-12-01
  • 出版日期: