表面处理和注入12%铬钢中氮化物的透射电镜研究

Materials Science and Engineering Pub Date : 1988-04-01 DOI:10.1016/0025-5416(88)90252-2

J.A Kozubowski, W Zielinski, G Gawlik, J Jagielski, A Podgorski, J Lunarski

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引用次数: 4

摘要

用100 keV的N2+离子注入含12%铬的合金钢试样，注入量为1 × 1017 N2+ cm−2。在注入过程中，估计样品温度不超过450 K。采用两种试样进行植入:电抛光和机械抛光。在电抛光样品中发现了Fe16N2型氮化铁和混合铁铬氮化铁(Cr,Fe)2Ni1−x (x = 0-0.5)。在机械抛光样品中，Fe16N2氮化物占主导地位。讨论了明显不同的表面层对氮化物形成的影响以及用衍射方法检测氮化物的影响。

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TEM studies of nitrides in surface-treated and implanted 12% chrome steel

Specimens of alloy steel containing 12% chromium as a major alloying constituent were implanted with 100 keV N₂⁺ ions at a constant fluence of 1 × 10¹⁷ N₂⁺ cm⁻². The estimated specimen temperature during implantation did not exceed 450 K. Two kinds of specimens were used for implantation: electropolished and mechanically polished. Iron nitrides of the Fe₁₆N₂ type and mixed iron chromium nitrides (Cr,Fe)₂Ni_1−x (x = 0–0.5) were found in electropolished samples. In mechanically polished samples the Fe₁₆N₂ nitrides predominated. The influence of markedly different surface layers on nitride formation and their detection by diffraction methods is discussed.

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