발간논문

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Vol.38, No.1, 131 ~ 136, 2000
Title
Pesearch Paper / Surface Treatment : Paste Boriding of Carbon Steel by Micro - pulse Plasma
김규열Kyu Youl Lee,명성환Sung Hwan Myung,한세진Se Jin Han,이준용Jun Yong Lee,이재호Jae Ho Lee,김영환Yeong Hwan Kim
Abstract
The micro-pulse d.c. plasma system has been adopted to the paste boriding of steel to reduce the optimum process temperature. By using pulsed plasma, the most desirable microstructure and hardness are obtained at 700℃ which is about 100℃∼200℃ lower than that of typical gas boriding. The X-ray diffraction analysis shows that the tooth-shaped dendrite in the surface layer is mainly the mixture of FeB and Fe₂B. The composition of paste which determines the chemical potential of dissolved boron greatly influences the optimum process temperature and mechanical properties of boride layer.
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