인코넬 합금의 미세조직과 기계적 특성에 미치는 냉각속도 영향

박노경; 이호성; 채영석; No-Kyeong Park; Ho-Seong Lee; Young-Suck Chai

Korean Journal of Materials Research, Vol.17, No.10, 555-559, October, 2007

DOI10.3740/MRSK.2007.17.10.555 Export Citation

인코넬 합금의 미세조직과 기계적 특성에 미치는 냉각속도 영향

Effect of Cooling Rates on Mechanical Properties and Microstructure of Inconel Alloys

박노경, 이호성 ^†, 채영석¹

경북대학교 신소재공학부
¹영남대학교 기계공학부

No-Kyeong Park, Ho-Seong Lee^†, and Young-Suck Chai¹

School of Materials Science and Engineering, Kyungpook National University, 1370 Sangyeok-dong, Buk-gu, Daegu, 702-701, Republic of Korea
¹School of Mechanical Engineering, Yeungnam University, 214-1 Dae-dong, Gyeongsan-si, Gyeonsangbuk-do, 712-749, Republic of Korea

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The mechanical properties and microstructure of Inconel 690 and 600 alloys with various cooling rates were investigated. Optical microscopy and scanning electron microscopy observations indicated that in case of the cooling rate of , discontinuous carbides along the grain boundaries were formed and when the cooling rate was , continuous carbides were formed in Inconel 690 and 600 alloys. For the annealed Inconel 690 alloy with high Cr content, a lot of annealing twins, which led the preferential growth of (111) planes, were observed. However, the annealed Inconel 600 alloy with low Cr content showed a few annealing twins and the preferential growth of (200) planes. Inconel 600 alloy had a larger value of ultimate tensile strength (UTS) than Inconel 690 alloy.

Keywords:Inconel alloy;Steam generator tube;Microstructure;Mechanical property;Heat treatment;Cooling rate

[References]

Diercks DR, Shack WJ, Muscara J, Nucl. Eng. Des., 194, 19 (1999)
Huh MY, Pyo EJ, Park YS, An SU, J. Kor. Inst. Met. & Mater., 33, 1197 (1995)
Lee YB, Jang J, Lee DH, Lee D, Kuk IH, J. Kor. Inst. Met. & Mater., 35, 935 (1997)
Maeng WY, Nam TW, J. Kor. Soc. Heat Treatment, 10, 219 (1997)
Lee JK, Jang J, Kim DH, Rhee CK, Kuk IH, J. Kor. Inst. Met. & Mater., 36, 998 (1998)
Ahn YC, Kim HY, Hong SH, Han JH, Kim JS, Kuk IH, J. Kor. Inst. Met. & Mater., 37, 409 (1999)
Ahn YC, Kim HY, Hong SH, Han JH, Kim JS, Kuk IH, J. Kor. Inst. Met. & Mater., 37, 416 (1999)
Ferguson JB, Lopez HF, Metall. Mater. Trans. A, 37, 2471 (2006)
Maeng WY, Nam TW, J. Kor. Inst. Met. & Mater., 35, 1019 (1997)
Maeng WY, Kang YH, Nam TW, Ohashi S, Ishihara T, J. Kor. Inst. Met. & Mater., 36, 1584 (1998)
Oh SJ, Lee JB, J. Kor. Inst. Met. & Mater., 45, 224 (2007)
Kai JJ, Yu GP, Tsai CH, Liu MN, Yao SC, Metall. Mater. Trans. A, 20, 2057 (1989)
Airey GP, Metallography, 13, 21 (1980)
Page RA, Mcminn A, Metall. Mater. Trans. A, 17, 877 (1986)
Stiller K, Nilsson JO, Norring K, Metall. Mater. Trans. A, 27, 327 (1996)
Symons DM, Metall. Mater. Trans. A, 28, 655 (1997)

[Referenced By]

[Related Articles]

[1] Diercks DR, Shack WJ, Muscara J, Nucl. Eng. Des., 194, 19 (1999)

[2] Huh MY, Pyo EJ, Park YS, An SU, J. Kor. Inst. Met. & Mater., 33, 1197 (1995)

[3] Lee YB, Jang J, Lee DH, Lee D, Kuk IH, J. Kor. Inst. Met. & Mater., 35, 935 (1997)

[4] Maeng WY, Nam TW, J. Kor. Soc. Heat Treatment, 10, 219 (1997)

[5] Lee JK, Jang J, Kim DH, Rhee CK, Kuk IH, J. Kor. Inst. Met. & Mater., 36, 998 (1998)

[6] Ahn YC, Kim HY, Hong SH, Han JH, Kim JS, Kuk IH, J. Kor. Inst. Met. & Mater., 37, 409 (1999)

[7] Ahn YC, Kim HY, Hong SH, Han JH, Kim JS, Kuk IH, J. Kor. Inst. Met. & Mater., 37, 416 (1999)

[8] Ferguson JB, Lopez HF, Metall. Mater. Trans. A, 37, 2471 (2006)

[9] Maeng WY, Nam TW, J. Kor. Inst. Met. & Mater., 35, 1019 (1997)

[10] Maeng WY, Kang YH, Nam TW, Ohashi S, Ishihara T, J. Kor. Inst. Met. & Mater., 36, 1584 (1998)

[11] Oh SJ, Lee JB, J. Kor. Inst. Met. & Mater., 45, 224 (2007)

[12] Kai JJ, Yu GP, Tsai CH, Liu MN, Yao SC, Metall. Mater. Trans. A, 20, 2057 (1989)

[13] Airey GP, Metallography, 13, 21 (1980)

[14] Page RA, Mcminn A, Metall. Mater. Trans. A, 17, 877 (1986)

[15] Stiller K, Nilsson JO, Norring K, Metall. Mater. Trans. A, 27, 327 (1996)

[16] Symons DM, Metall. Mater. Trans. A, 28, 655 (1997)