Plasma-carburization of nickel-based self-fluxing alloy

被引：12

作者：

Han, H ^{[1
]}

Baba, S ^{[1
]}

Kitagawa, H ^{[1
]}

Abu Suilik, S ^{[1
]}

Hasezaki, K ^{[1
]}

Kato, T ^{[1
]}

Arakawa, K ^{[1
]}

Noda, Y ^{[1
]}

机构：

[1] Shimane Univ, Dept Mat Sci, Matsue, Shimane 6908504, Japan

来源：

VACUUM | 2005年 / 78卷 / 01期

关键词：

nickel-based self-fluxing alloy; plasma-carburization; surface treatment; vickers hardness;

D O I：

10.1016/j.vacuum.2004.12.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Surface hardening of Ni-based self-fluxing alloy was carried out using plasma-carburization. The carburization was performed utilizing methane glow discharge plasma on sintered Ni-based self-fluxing alloy (METCO 16C) at 977 degrees C and 1065 degrees C for 3.6 ks. The carburized surfaces were characterized by employing optical microscopy, scanning electron microscopy (SEM), electron probe microanalysis (EPMA), transmission electron microscopy and Vickers microhardness testing. The SEM and EPMA micrographs show that the thickness of the carburized hard layer increased with increasing temperature, to a depth of approximately 120-200 mu m. Hard chromium carbide (Cr3C2) was found to precipitate near the surface on carburization at 977 degrees C more than at 1065 degrees C. Cr3C2 contributes to the surface hardening. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：27 / 32

页数：6

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