The Surface Segregation of Copper in Non-oriented Electrical Steels

この論文にアクセスする

この論文をさがす

著者

抄録

The surface segregation of copper was investigated in laboratory and industrial non-oriented electrical steel sheets containing copper. The cold-rolled samples of Fe–Si–Al alloys were annealed in the temperature range 320–1 120 K in the ultra-high-vacuum chamber of a field-emission Auger electron spectrometer, and subsequently characterized by Auger electron spectroscopy (AES).<br>The Cu segregation rate was estimated based on the surface concentration of Cu after annealing at a given temperature. Not surprisingly, the AES analysis showed that the intensity of the surface segregation of copper increased with increasing annealing temperature. However, thermal desorption spectroscopy (TDS) showed that above 770 K the desorption of Cu started to reduce the surface concentration of Cu, thus making a reliable estimation of the segregation rate impossible.<br>During the annealings, in addition to the surface segregation of copper, the surface segregation of alloying and impurity elements was observed as well. Moreover, it appeared that some of these constituents compete for available surface sites. For example, it could be concluded that the surface segregation of copper hindered the surface segregation of carbon in the Fe–Si–Al alloys.

収録刊行物

  • ISIJ international

    ISIJ international 46(10), 1452-1457, 2006-10-15

    The Iron and Steel Institute of Japan

参考文献:  17件中 1-17件 を表示

  • <no title>

    RONIN F.

    Book of Steel, 1996

    被引用文献1件

  • <no title>

    NORO K.

    ISIJ Int. 37, 198, 1997

    被引用文献1件

  • <no title>

    STEINER PETROVIC D.

    Vacuum 71, 33, 2003

    被引用文献1件

  • <no title>

    MARRA K. M.

    ISIJ Int. 44, 618, 2004

    被引用文献1件

  • <no title>

    STEINER PETROVIC D.

    Mater. Technol. 40, 13, 2006

    被引用文献1件

  • <no title>

    UEBING C.

    Heterogen. Chem. Rev. 3, 351, 1996

    被引用文献1件

  • <no title>

    BRIGGS D.

    Practical Surface Analysis 1, 201,335, 1994

    被引用文献1件

  • <no title>

    VG Scientific

    Technical Documentation, Microlab 310-F, Operators Manuals, 1997

    被引用文献1件

  • <no title>

    CHRISTMANN K.

    Introduction to Surface Physical Chemistry, 1991

    被引用文献1件

  • <no title>

    WAGNER R.

    Surf. Sci. 429, 55, 2000

    被引用文献1件

  • Non-oriented electrical steels

    LYUDKOVSKY G.

    Journal of Metals January, 18, 1986

    被引用文献3件

  • <no title>

    MICHAL G. M.

    Metall. Trans. A 17, 1287, 1986

    被引用文献1件

  • <no title>

    VIEFHAUS H.

    Surf. Sci. 109, 1, 1981

    被引用文献1件

  • <no title>

    GRABKE H. J.

    Scr. Metall. 9, 1181, 1975

    被引用文献1件

  • <no title>

    NAGAI K.

    Surf. Sci. 176, 193, 1986

    被引用文献1件

  • <no title>

    KALKI K.

    Surf. Sci. 269/270, 310, 1992

    被引用文献1件

  • <no title>

    PAYNE S. H.

    Surf. Sci. 345, L1, 1996

    被引用文献1件

各種コード

ページトップへ