방전플라즈마소결법을 이용한 WC-3 wt%Co 소결체 제조 및 평가

최정철; 장세훈; 차용훈; 오익현; Jung-Chul Choi; Se-Hun Chang; Young- Hoon Cha; Ik-Hyun Oh

Korean Journal of Materials Research, Vol.18, No.7, 357-361, July, 2008

DOI10.3740/MRSK.2008.18.7.357 Export Citation

방전플라즈마소결법을 이용한 WC-3 wt%Co 소결체 제조 및 평가

Fabrication and Evaluation of WC-3 wt%Co Compacts Fabricated by Spark Plasma Sintering

최정철, 장세훈, 차용훈¹, 오익현^†

한국생산기술연구원 광주연구센터
¹조선대학교 공과대학 기계공학과

Jung-Chul Choi, Se-Hun Chang, Young- Hoon Cha¹, and Ik-Hyun Oh^†

Gwangju Research Center, Korea Institute of Industrial Technology (KITECH), Gwangju 500-480, Korea
¹Department of Mechanical Engineering, Chosun University, Gwangju, Korea

E-mail:

Microstructure and mechanical properties of WC-3 wt% Co cemented carbides, fabricated by a spark plasma sintering (SPS) process, were investigated in this study. The WC-3 wt%Co powders were sintered at 900~1100oC for 5min under 40MPa in high vacuum. The density and hardness were increased as the sintering temperature increased. WC-3 wt%Co compacts with a relative density of 97.1% were successfully fabricated at 1100oC. The fracture toughness and hardness of a compact sintered at 1100oC were 21.6 MPa · m1/2 and 4279 Hv, respectively.

Keywords:spark plasma sintering;WC-Co;microstructure;hardness;fracture toughness

[References]

Park CD, Shon IJ, Kim HC, Lee YK, J. Kor. Pow. Met. Inst., 8(4), 231 (2001)
Kim HC, Thesis PD (in Korean), p. 49-79 Chonbuk University, Chonbuk, (2005). (2005)
Park WK, Hwang SK, Lee OS, Kim YD, J. Kor. Inst. Met. & Mater., 34(8), 987 (1996)
Huang SG, Vanmeensel K, Li L, Vander Biest O, Vleugels J, Mater. Sci. Eng. A, 475, 84 (2008)
Ahn DG, J. Kor. Soc. Nondest. Test., 20(5), 438 (2000)
Lee GG, Kwon HS, Ha GH, J. Kor. Power. Met. Inst., 11(2), 111 (2004)
Zhao S, Song X, Zang I, Liu X, Mater. Sci. Eng. A, 473, 323 (2008)
Shin HD, Tech News Brief, KISTI, p.2-4, Korean, (2004). (2004)
Jia CC, Tang H, Mei XZ, Yin FZ, Qu XH, Mater. Lett., 59, 2566 (2005)
Ahn DK, Yoon MJ, J. Kor. Soc. Mach. Tool. Eng., 9(6), 170 (2000)
Kim RK, Yoon HC, Oh IH, Chang SH, Lee BT, J. Kor. Inst. Met & Mater., 44(6), 451 (2006)
Kim BK, Ha GH, Kim JC, Special report, Engineering Information, p.36 (in korea) (2003). (2003)
Min BJ, MSc Thesis (in Korea), p. 24-32 Busan University, Busan (2008). (2008)

[Referenced By]

[1] Park CD, Shon IJ, Kim HC, Lee YK, J. Kor. Pow. Met. Inst., 8(4), 231 (2001)

[2] Kim HC, Thesis PD (in Korean), p. 49-79 Chonbuk University, Chonbuk, (2005). (2005)

[3] Park WK, Hwang SK, Lee OS, Kim YD, J. Kor. Inst. Met. & Mater., 34(8), 987 (1996)

[4] Huang SG, Vanmeensel K, Li L, Vander Biest O, Vleugels J, Mater. Sci. Eng. A, 475, 84 (2008)

[5] Ahn DG, J. Kor. Soc. Nondest. Test., 20(5), 438 (2000)

[6] Lee GG, Kwon HS, Ha GH, J. Kor. Power. Met. Inst., 11(2), 111 (2004)

[7] Zhao S, Song X, Zang I, Liu X, Mater. Sci. Eng. A, 473, 323 (2008)

[8] Shin HD, Tech News Brief, KISTI, p.2-4, Korean, (2004). (2004)

[9] Jia CC, Tang H, Mei XZ, Yin FZ, Qu XH, Mater. Lett., 59, 2566 (2005)

[10] Ahn DK, Yoon MJ, J. Kor. Soc. Mach. Tool. Eng., 9(6), 170 (2000)

[11] Kim RK, Yoon HC, Oh IH, Chang SH, Lee BT, J. Kor. Inst. Met & Mater., 44(6), 451 (2006)

[12] Kim BK, Ha GH, Kim JC, Special report, Engineering Information, p.36 (in korea) (2003). (2003)

[13] Min BJ, MSc Thesis (in Korea), p. 24-32 Busan University, Busan (2008). (2008)