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Surface Mechanical Properties and Micro-Characteristics of Ti+-Implanted Fe-Cr Alloys Depending on Cr Concentrations

Published online by Cambridge University Press:  26 February 2011

Jun Sasaki  and
Masaya Iwaki
Jun Sasaki
Affiliation:
Electronics and Control Systems R & D Lab., Nippon Steel Co., 1618 Ida, Nakahara-ku, Kawasaki 211, JAPAN
Masaya Iwaki
Affiliation:
RIKEN, 2-1 Hirosawa, Wako, Saitama 351, JAPAN
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Abstract

A study has been made on surface mechanical properties of Ti+-implanted Fe-Cr alloys with various Cr concentrations. The implantation was performed in the dose range from 1 × 1016 to 3×1017 Ti+/cm2 at the energy of 150keV. As the Cr concentration becomes lower, the friction coefficient of implanted alloys decreases, although the increase in the surface hardness is not obvious. XPS spectra show that the implantation caused the invation of carbon to form Fe-Cr-Ti-C metastable alloys containing chromium and iron carbides. It is concluded that Ti +-implantation is useful for decrease in friction of Fe-Cr alloys with the lower Cr concentration.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 100: Symposium – A Fundamentals of Beam-Solid Interactions and Transient Thermal Processing , 1988 , 185
Copyright
Copyright © Materials Research Society 1988

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References

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