BCl3-H2-Ar 분위기를 이용한 2단계 플라즈마 보로나이징 특성 = Characteristics of Two-Step Plasma-Assisted Boronizing Process in an Atmosphere of BCl3-H2-Ar

다국어 초록 (Multilingual Abstract)

A two-step plasma-assisted boronizing process was carried out on the AISI 1045 steel substrate to reduce the pore density introduced
by a conventional single plasma boronizing process. The specimens were plasma boronized for 1 h at 650C and subsequently for 7 h
at 800C in an atmosphere of BCl3-H2-Ar. The boride layer thickness was parabolic in boronizing time, a high HV reading of 1540
was found up to the boride layer thickness of 25 μm. It was found that the morphology of the boride layer prepared by the two-step
boronizing process was changed from a columnar to a tooth-like structure and the pores in the borided steel were eliminated completely in comparison to those synthesized by the conventional single boronizing process, implying that it is highly applicable for enhancing the dense and compact coating properties of the low-alloy steel.

참고문헌 (Reference)

1 "“Surface Morphology of Iron Specimens Boronized with BCl3-H-Mixtures" -91, 1985

2 "“Boron Condensation from Glow Discharge" -58, 1988

3 "The Role of Glow Discharge in the Formation of a Boride Layer on Steel in the Plasma Boriding Process" -66, 1985

4 "Plasma-Assisted Boriding of Industrial Components in a Pulsed D.C. Glow Discharge" 116-119, 1999

5 "Plasma Paste Boronizing Treatment of the Stainless Steel AISI 304" 112 : 71-5, 1999

6 "Metal Surface Modification by BC-Nitriding in a Two-Temperature-Stage Process" 39 : 304-08, 1995

7 "High-Temperature Properties of Plasma-Sprayed Coatings of YSZ/NiCrAlY on Inconel Substrate" 332 : 129-33, 2002

8 "Generation of Boride Layers on Steel and Nickel Alloys by Plasma Activation of Boron Trifluoride" 310 : 244-50, 1997

9 "Effect of Post-Oxidizing Time on Corrosion Properties of Plasma Nitrobarburized AISI 1020 Steel" 57 : 2060-65, 2003

10 "A Study on Plasma-Assisted Boriding of Steels" 98 : 886-90, 1998

11 "A Novel Approach to Gas Boronizing" 130 : 8794-, 2000