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自蔓延離心法制備不銹鋼內襯復合鋼管的顯微結構

席文君,  殷聲,  賴和怡

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文章導航 > 工程科學學報  > 1999 >  21(3): 269-272
席文君, 殷聲, 賴和怡. 自蔓延離心法制備不銹鋼內襯復合鋼管的顯微結構[J]. 工程科學學報, 1999, 21(3): 269-272. doi: 10.13374/j.issn1001-053x.1999.03.015
引用本文: 席文君, 殷聲, 賴和怡. 自蔓延離心法制備不銹鋼內襯復合鋼管的顯微結構[J]. 工程科學學報, 1999, 21(3): 269-272. doi: 10.13374/j.issn1001-053x.1999.03.015
shu
Xi Wenjun, Yin Sheng, Lai Heyi. Microstructure of Stainless Steel Composite Pipe Pruduced by SHS-Centrifugal Process[J]. Chinese Journal of Engineering, 1999, 21(3): 269-272. doi: 10.13374/j.issn1001-053x.1999.03.015
Citation: Xi Wenjun, Yin Sheng, Lai Heyi. Microstructure of Stainless Steel Composite Pipe Pruduced by SHS-Centrifugal Process[J]. Chinese Journal of Engineering, 1999, 21(3): 269-272. doi: 10.13374/j.issn1001-053x.1999.03.015
shu

自蔓延離心法制備不銹鋼內襯復合鋼管的顯微結構

doi: 10.13374/j.issn1001-053x.1999.03.015

  • 北京科技大學材料科學與工程系, 北京 100083

詳細信息
    作者簡介:

    席文君 男,34歲,博士生

  • 中圖分類號: TG142.25

Microstructure of Stainless Steel Composite Pipe Pruduced by SHS-Centrifugal Process

  • Material Science and Engineering School, UST Beijing, Beijing 100083, China

    摘要
  • 摘要: 用掃描電鏡和透射電鏡研究了自蔓延離心法制備的不銹鋼內襯(Cr,Ni分別為13%~14%和14~16%)復合鋼管不銹鋼層的結晶特點和組織結構.研究表明,不銹鋼熔體主要以柱狀晶形式結晶,柱狀晶由奧氏體組成,柱狀晶間有一薄層鐵素體,鐵素體區有AlNi金屬間化合物析出相,在奧氏體和鐵素體相界的鐵素體區一側有σ相析出.

     

    Abstract: The microstructure and solidification behaviour of stainless steel layer in composite pipe were investigated by means of TEM and SEM. The results show that the crystal of stainless steel layer grows in columnar grains. The columnar grains consists of austenite. A thin layer of ferrite exists between the columnar grains. The intermetallic compound AINi precipitates in ferrite zone. The σ phase precipitates at the phase boundaries between austenite and ferrite.

     

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  • 收稿日期:  1998-07-15
  • 網絡出版日期:  2021-08-27

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