Acta Metall Sin  1991, Vol. 27 Issue (1): 130-136    DOI:

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MICROSTRUCTURE OF CARBURIZED LAYERS ON IRON SURFACE IMPLANTED WITH Ni~+, Mo~+ AND B~+ OR THEIR COMBINATIONS

WANG Peixuan;SUN Xiaodong;ZHANG Jianwei;ZHANG Guoguang University of Science and Technology Beijing; LU Haolin. YANG Qifa;XU Qiu Institute of Atomic Energy; Beijing

WANG Peixuan;SUN Xiaodong;ZHANG Jianwei;ZHANG Guoguang University of Science and Technology Beijing; LU Haolin. YANG Qifa;XU Qiu Institute of Atomic Energy; Beijing. MICROSTRUCTURE OF CARBURIZED LAYERS ON IRON SURFACE IMPLANTED WITH Ni~+, Mo~+ AND B~+ OR THEIR COMBINATIONS. Acta Metall Sin, 1991, 27(1): 130-136.

Abstract References Related Articles Recommended Metrics Download:  PDF(1548KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The composition profiles and microstructures of Fe surface layers im-planted with Ni~(+), Mo~(+) or B~(+), respectively, or their combinations have been inves-tigated by AES and TEM. The implantations were carried out with ion energy50--150 keV for dose 5×10~(15)--4×10~(17) ions/cm~2 at room temperature. The residualpressure in the target chamber is around 1.3×10~(-3) Pa. AES shows that a carburiz-ed layer containing 20--30 at.-% C formed at the surface. Its thickness dependson the ion species and the ranges. It has been found that a relatively thick surfaceamorphous layer is formed after combined implantations. Metastable carbides of hcpstructure and fcc austenites are also observed. The effects of collision cascades andthe radiation-enhanced diffusion on the surface carburization and the formation ofamorphous layers are discussed. Key words:  iron      ion implantation      ion beam modification      surface carburization      radiation effect      Received:  18 January 1991      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1991/V27/I1/130 1 Lu Haolin, Shu Huiqin, Mei Chen et al. Vacuum, 1989; 39: 187 2 Knapp J A. Follstaedt D M, Doyle B L. Nucl Instrum Methods Phys Res. 1985; B7/8: 38 3 Singer I L. Vacuum, 1984; 34: 853 4 Rauschenbach B. Nucl Instrum Methods phys Res, 1986; B15: 756 5 Hohmuth K, Rauschenbach B, Kolitsch A et al. Nucl Instrum Methods, 1983; 209/210: 249 6 Linker G. Mater Sci Eng, 1985; 69: 105 7 Follstaedt D M. Nucl Instrum Methods Phys Res, 1985; B7/8: 11 8 Vardiman R G. Bolster R N, Singer I L. In: Picraux S T, Choyke W J eds. 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