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
快速凝固對DZ98M成分合金微觀組織的影響
DOI:
作者:
作者單位:

中國科學(xué)院金屬研究所,中國科學(xué)院金屬研究所,中國科學(xué)院金屬研究所,東北大學(xué)S材料各向異性與織構(gòu)教育部重點實驗室,東北大學(xué)S材料各向異性與織構(gòu)教育部重點實驗室

作者簡介:

通訊作者:

中圖分類號:

基金項目:

中央高校基本科研業(yè)務(wù)費(fèi)重大創(chuàng)新項目(N130810002),國家高技術(shù)研究發(fā)展計劃(863計劃)(SS2014AA041701)


Influences on Microstructure of DZ98M Composition of the Alloy by Rapid Solidification
Author:
Affiliation:

Institute of Metal Research,Institute of Metal Research,Institute of Metal Research,KeySLaboratorySforSAnisotropySandSTextureSofSMaterials,SMinistrySofSEducation,SNortheasternSUniversity,KeySLaboratorySforSAnisotropySandSTextureSofSMaterials,SMinistrySofSEducation,SNortheasternSUniversity

Fund Project:

Scientific Research Foundation of the Educational Commission of Heilongjiang Province of China (12541066)

  • 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:

    本文采用激光增材制造技術(shù)(LEN98M)和傳統(tǒng)定向凝固技術(shù)(DZ98M)制備鎳基高溫合金,通過OM,SEM,EDS,XRD,EPMA,DTA等方法分析比較合金的枝晶形態(tài)、微觀組織、凝固特征溫度、元素偏析情況。結(jié)果表明,LEN98M合金的一次枝晶間距約為70μm,僅為傳統(tǒng)鑄造合金DZ98M的1/5,二次枝晶不發(fā)達(dá)。在枝晶尺度范圍內(nèi)LEN98M合金存在更加明顯的偏析行為,γ?相尺寸大且形態(tài)不規(guī)則,無碳化物析出,枝晶間共晶為尺寸小更加分散的γ?塊狀。

    Abstract:

    In this paper a Ni-based superalloyalloy was fabricated by laser additive manufacturing technology(LEN98M) and by trainditional directional solidification (DZ98M), respectively. The solidification morphology, microstructures, elements segregation are systematically investigated by using optical microscope(OM), scanning electron microscope(SEM), energy dispersive spectroscopy(EDS), X-ray diffraction(XRD), electron microprobe(EPMA), differential thermal analysis(DTA). The results show that the primary dendrite arm spacing of the LEN98M alloy is 70 μm and reduced as 1/5 of the DZ98M alloy. There is a serious segregation of alloying elements in the range of dendrite scale. The morphology of γ? phase are irregular and no precipitation of carbides observed in as-casted LEN98M alloy. There are smaller γ/γ? eutectic dispersed in interdendritic regions.

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

趙成磊,劉紀(jì)德,李金國,裴文利,趙鑲.快速凝固對DZ98M成分合金微觀組織的影響[J].稀有金屬材料與工程,2017,46(10):2999~3004.[ZHAO Chenglei, LIU Jide, LI Jinguo, PEI Wenli, ZHAO Xiang. Influences on Microstructure of DZ98M Composition of the Alloy by Rapid Solidification[J]. Rare Metal Materials and Engineering,2017,46(10):2999~3004.]
DOI：[doi]

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:2015-07-11
  • 最后修改日期:2015-12-01
  • 錄用日期:2015-12-11
  • 在線發(fā)布日期: 2017-12-01
  • 出版日期: