Calorizing 처리에서 코티분말의 입자크기 및 코팅온도가 금속표면에 형성된 코팅층의 두께에 미치는 영향

하진욱; 박해웅

Journal of the Korean Industrial and Engineering Chemistry, Vol.10, No.7, 1061-1065, November, 1999

The Effect of Particle Size of Coating Powder and Coating Temperature on the Thickness of Coating Layer Formed on Metal Surface

하진욱, 박해웅

초록

Calorizing 처리에서 코팅분말의 입자크기 및 코팅온도가 금속표면에 형성된 코팅층의 두께에 미치는 영향을 XRD, SEM, 및 EDXS를 사용하여 고찰하였다. 코팅분말은 입자크기별로 3단계로 분리하였으며 코팅온도는 950^oC와 980^oC로 변화하였다. Calorizing 처리는 공기 및 아르곤 분위기에서 5시간 동안 행하였다. XRD결과 공기분위기의 Calorizing 처리관정에서 금속산화물(Al₂O₃)과 질화물(AIN)이 형성됨을 관찰하였다. 공기 및 아르곤 분위기의 Calorizing 처리 결과 코티분말의 입자크기가 감소하고 코팅온도가 증가할수록 코팅층으 두께와 코팅층에서의 알루미늄의 함량이 증가함을 알 수 있었다.

The effect of particle size of coating powder and coating temperature on the thickness of coating layer formed on metal surface was studied by using XRD, SEM and EDXS. Coating powder was separated according to particle size by 3 steps and coating temperatures were varied from 950℃ to 980℃. Calorizing carried out at air and Ar conditions for 5 hrs, respectively. XRD result show that Al₂O₃ and AlN were formed during calorizing at air condition. The thickness and Al content of coating layer increased as the particle size of coating powder decreased and coating temperature increased.

Keywords:calorizing coating;size of coating powder;coating temperature

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[1] Seigle LL, "Thermodynamics and Kinetics of Pack Cementation Processes," Martinus Nijhoff Publishers, Boston, 345 (1984)

[2] Rapp RA, Wang D, Weisert T, "Metallurgical Coatings," TMS-AIME, Warrendale, 131 (1987)

[3] Deb P, Boone DH, Streiff R, "Surface Modifications and Coatings," ASM, Metals Park, Ohio, 143 (1986)

[4] Streiff R, Boone DH, Purvis LJ, "Surface Engineering," Martinus Nijhoff Publishers, Boston, 469 (1984)

[5] Mevrel R, Duret C, Pichoir R, Mater. Sci. Technol., 2-3, 201 (1986)

[6] Tawancy HM, Abbas NM, Rhys-Jones TN, Surf. Coat. Technol., 49, 1 (1991)

[7] Alperine S, Steinmetz P, Costantini A, Josso P, Surf. Coat. Technol., 43-44, 347 (1990)

[8] Alperine S, Steinmetz P, Josso P, Costantini A, Mater. Sci. Eng. A, 120-121, 367 (1989)

[9] Zheng M, Rapp RA, Oxid. Met., 49, 19 (1998)

[10] Da Costa W, Gleeson B, Young J, Surf. Coat. Technol., 88, 165 (1996)

[11] Geib FD, Rapp RA, Oxid. Met., 40, 213 (1993)

[12] Bianco R, Rapp RA, J. Electrochem. Soc., 140, 1181 (1993)

[13] Dacosta W, Gleeson B, Young DJ, J. Electrochem. Soc., 141(6), 1464 (1994)