레이저 표면 용융공정으로 Al-Cr 코팅한 Zr합금의 미세조직 특성

김정민; 이재철; 김일현; 김현길; Jeong-Min Kim; Jae-Cheol Lee; Il-Hyun Kim; Hyun-Gil Kim

Korean Journal of Materials Research, Vol.27, No.10, 563-568, October, 2017

DOI10.3740/MRSK.2017.27.10.563 Export Citation

레이저 표면 용융공정으로 Al-Cr 코팅한 Zr합금의 미세조직 특성

Microstructural Characteristics of Al-Cr Coated Zr Alloy Fabricated by Laser Surface Melting Process

김정민^†, 이재철, 김일현¹, 김현길¹

한밭대학교
¹한국원자력연구원

Jeong-Min Kim^†, Jae-Cheol Lee, Il-Hyun Kim¹, and Hyun-Gil Kim¹

Department of Advanced Materials Engineering, Hanbat National University, Daejeon 34158, Republic of Korea
¹Light Water Reactor Fuel Technology Division, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea

E-mail:

In this study, the coating of an Al-Cr layer on the surface of a Zircaloy-4 alloy was carried out through plasma pretreatment coating and a laser surface melting process. Two different conditions for laser treatment, severe or minimal surface melting of the Zr alloy substrate, were applied to form the final coating. When there was significant surface melting of the Zr alloy, the solidification microstructure of the newly formed coating layer was mainly composed of needle-shaped Al3Zr, Al(Cr) and Al7Cr phases. On the other hand, the solidification microstructure of the coating layer was mainly composed of Al(Cr) and Al7Cr phases when there was minimal surface melting of Zr base in the laser process. However, when the coating was maintained at 1100 °C for 2 hours, significant inter-diffusion occurred between the phases in the coating. As a result, the upper part of the coating layer was observed to mainly consist of Al3Zr and Al8Cr5 phases, regardless of the laser treatment conditions.

Keywords:Al-Cr;Zr alloy;laser surface melting;microstructure

[References]

Park DJ, Kim HG, Park JY, Jung YI, Park JH, Koo YH, Corrosion Sci., 94, 459 (2015)
Kim HG, Kim IH, Jung YI, Park DJ, Park JY, J. Nucl. Mater., 465, 531 (2015)
Kuprin AS, Belous VA, Voyevodin VN, Bryk VV, Vasilenko RL, Ovcharenko VD, Reshetnyak EN, Tolmachova GN, V’yugov PN, J. Nucl. Mater., 465, 400 (2015)
Terrani KA, Parish CM, Shin D, Pint BA, J. Nucl. Mater., 438, 64 (2015)
Jin D, Yang F, Zou Z, Gu L, Zhao X, Guo F, Xiao P, Surf. Coat. Technol., 287, 55 (2016)
Chen C, Zhang J, Duan C, Feng X, Shen Y, J. Alloy. Compd., 660, 208 (2016)
Kim JM, Ha TH, Kim IH, Kim HG, Metals, 7, 59 (2017)
Kim JM, Ha TH, Park JS, Kim HG, Trans. Nonferrous Met. Soc. China, 26, 2603 (2016)
Ha TH, Thesis MS, Applied Mater. Eng., p. 21-22, Hanbat National University, Daejeon, Korea (2017).
Kim HG, Kim IH, Jung YI, Park DJ, Park JY, Koo YH, Charlotte, NC, USA, 840 (2013).
PANDAT. CompuTherm, LLC, Madison, WI, USA. Available online: http://www.computherm.com.
Yue TM, Xie H, Lin X, Yang HO, J. Alloy. Compd., 509, 3705 (2011)
Okamoto H, Phase Diagrams for Binary Alloys, ASM Desk Handbook, Materials Park, OH, USA, (2000). p.29.
Zhang M, Xu BJ, Ling GP, Appl. Surf. Sci., 331, 1 (2015)

[Referenced By]

[1] Park DJ, Kim HG, Park JY, Jung YI, Park JH, Koo YH, Corrosion Sci., 94, 459 (2015)

[2] Kim HG, Kim IH, Jung YI, Park DJ, Park JY, J. Nucl. Mater., 465, 531 (2015)

[3] Kuprin AS, Belous VA, Voyevodin VN, Bryk VV, Vasilenko RL, Ovcharenko VD, Reshetnyak EN, Tolmachova GN, V’yugov PN, J. Nucl. Mater., 465, 400 (2015)

[4] Terrani KA, Parish CM, Shin D, Pint BA, J. Nucl. Mater., 438, 64 (2015)

[5] Jin D, Yang F, Zou Z, Gu L, Zhao X, Guo F, Xiao P, Surf. Coat. Technol., 287, 55 (2016)

[6] Chen C, Zhang J, Duan C, Feng X, Shen Y, J. Alloy. Compd., 660, 208 (2016)

[7] Kim JM, Ha TH, Kim IH, Kim HG, Metals, 7, 59 (2017)

[8] Kim JM, Ha TH, Park JS, Kim HG, Trans. Nonferrous Met. Soc. China, 26, 2603 (2016)

[9] Ha TH, Thesis MS, Applied Mater. Eng., p. 21-22, Hanbat National University, Daejeon, Korea (2017).

[10] Kim HG, Kim IH, Jung YI, Park DJ, Park JY, Koo YH, Charlotte, NC, USA, 840 (2013).

[11] PANDAT. CompuTherm, LLC, Madison, WI, USA. Available online: http://www.computherm.com.

[12] Yue TM, Xie H, Lin X, Yang HO, J. Alloy. Compd., 509, 3705 (2011)

[13] Okamoto H, Phase Diagrams for Binary Alloys, ASM Desk Handbook, Materials Park, OH, USA, (2000). p.29.

[14] Zhang M, Xu BJ, Ling GP, Appl. Surf. Sci., 331, 1 (2015)