알루미늄 기지에 알루미늄-알루미나 혼합분말을 이용한 고온플라즈마 열분사 코팅층의 밀착강도 향상기구

박진수; 이효룡; 이범호; 박준식; Jin Soo Park; Hyo Ryong Lee; Beom Ho Lee; Joon Sik Park

Korean Journal of Materials Research, Vol.25, No.5, 226-232, May, 2015

DOI10.3740/MRSK.2015.25.5.226 Export Citation

알루미늄 기지에 알루미늄-알루미나 혼합분말을 이용한 고온플라즈마 열분사 코팅층의 밀착강도 향상기구

Improvement of Adhesion Strength of High Temperature Plasma Coated Aluminum Substrate with Aluminum-Alumina Powder Mixture

박진수^{1, 2}, 이효룡³, 이범호³, 박준식^{1, †}

¹한밭대학교 신소재공학과
²(주)인스텍
³(주)신우금형

Jin Soo Park^{1, 2}, Hyo Ryong Lee³, Beom Ho Lee³, and Joon Sik Park^{1, †}

¹Department of Materials Science and Engineering, Hanbat National University, Daejeon 305-719, Korea
²INSTECH Co. Ltd., Daejeon 305-500, Korea
³SINWOO Co. Ltd., Daejeon 306-120, Korea

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High temperature plasma coating technology has been applied to recover damaged aluminum dies from wear by spraying pure aluminum and alumina powder. However, the coated mixed powder layer composed of aluminum and alumina often undergoes a detachment from the substrate, making the coated substrate die unable to maintain its expected life span. In this study, in order to increase the bonding strength between the substrate and the coating layer, a pure aluminum layer was applied as an intermediate bond layer. In order to prepare the specimen with variable bond coating conditions, the bond coat layers with a various gun speed from 10 cm/sec to 30 cm/sec were prepared with coating cycle variations ranging from three to nine cycles. The specimen with a bond coat layer coated with a gun speed of 20 cm/sec and three coating cycles exhibited ~13MPa of adhesion strength, while the specimen without a bond coat layer showed ~6 MPa of adhesion strength. The adhesion strength with a variation of bond coat layer thickness is discussed in terms of coating parameters.

Keywords:plasma thermal spray;interface;adhesion;coatings

[References]

Handbook of Thermal Spray Technology, ed. Davis JR, ASM international, USA, (2004).
Berger LM, Int. J. Refract. Met. H. Int., 49(3), 350 (2015)
Chicot D, Ageorges H, Voda M, Louis G, Ben Dhia MA, Palacio CC, Kossman S, Surf. Coat. Technol., in press (2015)
Gu L, Fan X, Zhao Y, Zou B, Wang Y, Zhao S, Cao X, Surf. Coat. Technol., 206(21), 4403 (2012)
Kawasaki A, Watanabe R, Compos. Pt. B. Eng., 28(1-2), 29 (1997)
Chakravarthy Y, Bhandari S, Chaturvedi V, Pragatheeswaran A, Nagraj A, Thiyagarajan TK, Ananthapadmanaban PV, Das AK, J. European Ceram. Soc., 35, 787 (2015)
Ghadami F, HeydarzadehSohi M, Ghadami S, Surf. Coat. Technol., 261, 289 (2015)
Berndt CC, Ph. D. Thesis, "The adhesion of flame and plasma sprayed coatings", Monash University, 1980.
Sarikaya O, Anik S, Aslanlar S, Okumus SC, Celik E, Mater. Des., 28, 2443 (2007)
Sarikaya O, Celik E, Okumus SC, Aslanlar A, Anik S, Surf. Coat. Technol., 200, 2497 (2005)
Sarikaya O, Celik E, Okumus SC, Aslanlar A, Anik S, Surf. Coat. Technol., 200, 2497 (2005)
Fleury E, Lee SM, Kim WT, Kim DH, J. Non-Cryst. Solids, 278, 194 (2000)

[Referenced By]

[1] Handbook of Thermal Spray Technology, ed. Davis JR, ASM international, USA, (2004).

[2] Berger LM, Int. J. Refract. Met. H. Int., 49(3), 350 (2015)

[3] Chicot D, Ageorges H, Voda M, Louis G, Ben Dhia MA, Palacio CC, Kossman S, Surf. Coat. Technol., in press (2015)

[4] Gu L, Fan X, Zhao Y, Zou B, Wang Y, Zhao S, Cao X, Surf. Coat. Technol., 206(21), 4403 (2012)

[5] Kawasaki A, Watanabe R, Compos. Pt. B. Eng., 28(1-2), 29 (1997)

[6] Chakravarthy Y, Bhandari S, Chaturvedi V, Pragatheeswaran A, Nagraj A, Thiyagarajan TK, Ananthapadmanaban PV, Das AK, J. European Ceram. Soc., 35, 787 (2015)

[7] Ghadami F, HeydarzadehSohi M, Ghadami S, Surf. Coat. Technol., 261, 289 (2015)

[8] Berndt CC, Ph. D. Thesis, "The adhesion of flame and plasma sprayed coatings", Monash University, 1980.

[9] Sarikaya O, Anik S, Aslanlar S, Okumus SC, Celik E, Mater. Des., 28, 2443 (2007)

[10] Sarikaya O, Celik E, Okumus SC, Aslanlar A, Anik S, Surf. Coat. Technol., 200, 2497 (2005)

[11] Sarikaya O, Celik E, Okumus SC, Aslanlar A, Anik S, Surf. Coat. Technol., 200, 2497 (2005)

[12] Fleury E, Lee SM, Kim WT, Kim DH, J. Non-Cryst. Solids, 278, 194 (2000)