CHANGES IN FRICTION CHARACTERISTICS AND MICROSTRUCTURE OF STEEL BY ION-IMPLANTATION OF TITANIUM AND ADDITIONAL CARBON IN VARIOUS DOSES .2.

被引：5

作者：

HAYASHI, K ^{[1
]}

SASAKI, J ^{[1
]}

SUGIYAMA, K ^{[1
]}

ICHIKO, O ^{[1
]}

TANAKA, K ^{[1
]}

HASHIGUCHI, Y ^{[1
]}

机构：

[1] NIPPON STEEL CORP LTD,ADV MAT & TECHNOL RES LABS,NAKAHARA KU,KAWASAKI 211,JAPAN

来源：

SURFACE & COATINGS TECHNOLOGY | 1994年 / 66卷 / 1-3期

关键词：

D O I：

10.1016/0257-8972(94)90044-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

It is well known that Ti and Ti + C implantation improves the tribological properties of steels. The surface implanted with Ti + C exhibits superior performance in comparison with that implanted with Ti only. In this study, the difference in the microstructure and friction properties between Ti-implanted and Ti + C-implanted steel is investigated through transmission electron microscopy (TEM). After the implantation of Ti to a dose of 5 x 10(17) ions cm-2, the steel surface transformed to the amorphous phase only. On the contrary, the surface implanted with 5 x 10(17) Ti cm-2 followed by C implantation to a dose of 4 x 10(17) ions cm-2 transformed to the amorphous phase embedded with very fine TiC precipitates. After the dry sliding tests, wear tracks were studied by TEM. In Ti-implanted specimens, local damage via the loss of the amorphous layer and oxidation were observed in the wear track. On the contrary, in Ti + C-implanted specimens, uniform wear with very fine stripes was observed. This difference in the wear mode between Ti-implanted specimens and Ti + C-implanted specimens is interpreted in terms of the strength of the implanted layer and the chemical stability of the amorphous phase made by the additional C implantation.

引用

页码：430 / 435

页数：6

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