Browse > Article
http://dx.doi.org/10.12656/jksht.2015.28.5.239

Effect of NbC Carbide Addition on Mechanical Properties of Matrix-Type Cold-Work Tool Steel  

Kang, Jun-Yun (Korea Institute of Materials Science)
Kim, Hoyoung (Korea Institute of Materials Science)
Son, Dongmin (SeAH CSS)
Lee, Jae-Jin (Shinhwa ST)
Yun, Hyo Yun (Shinhwa ST)
Lee, Tae-Ho (Korea Institute of Materials Science)
Park, Seong-Jun (Korea Institute of Materials Science)
Park, Soon Keun (SeAH CSS)
Publication Information
Journal of the Korean Society for Heat Treatment / v.28, no.5, 2015 , pp. 239-249 More about this Journal
Abstract
Various amount of NbC carbide was intentionally formed in a matrix-type cold-work tool steel by controlled amount of Nb and C addition. And the effect of NbC addition on the mechanical properties was investigated. Four alloys with different Nb and C contents were cast by vacuum induction melting, then hot forging and spheroidizing annealing were conducted. The machinability of the annealed specimens was examined with 3 different cutting tools. And tensile tests at room temperature were conducted. After quenching and tempering, hardness and impact toughness were measured, while wear resistance was evaluated by disk-on-plate type wear test. The increasing amount of NbC addition resulted in degraded machinability with increased strength, whereas the absence of NbC also led to poor machinability due to high toughness. After quenching and tempering, the additional NbC improved wear resistance with increasing hardness, whereas it deteriorated impact toughness. Therefore, it could be found that a moderate addition of NbC was desirable for the balanced combination of mechanical properties.
Keywords
Alloy tool steel; Niobium; Carbide; Microstructure; Hardness; Toughness; Wear resistance; Machinability;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 G. Roberts, G. Krauss and R. Kennedy : Tool Steels, 5th ed, ASM International, Materials Park, OH (1998) 45-65.
2 A. Najafi-Zadeh, S. Yue and J. J. Jonas : ISIJ Int., 32 (1992) 213-221.   DOI
3 E. J. Palmiere, C. I. Garcia and A. J. DeArdo : Metall. Mater. Trans. A, 25 (1994) 277-286.
4 ASTM E 23-02: ASTM International (2002).
5 G. Xu, M. Kutsuna, Z. Liu and K. Yamada : Surface & Coatings Technology, 201 (2006) 1138-1144.   DOI
6 ASTM E975, ASTM international (2013).
7 J. O. Anderson, T. Helander, L. Hoglund, P. F. Shi and B. Sundman : Calphad, 26 (2002) 273-312.   DOI
8 Thermo-Calc Software TCFE7 Steels/Fe-alloys database version 7, 2012.
9 D. Das, A. K. Dutta and K. K. Ray : Mater. Sci. Eng. A, 527 (2010) 2182-2193.   DOI
10 J.-H. Jang, C.-H. Lee, Y.-U. Heo and D.-W. Suh : Acta Mater., 60 (2012) 208-217.   DOI
11 G. Roberts, G. Krauss and R. Kennedy: Tool Steels, 5th ed, ASM International, Materials Park, OH (1998) 1-28.
12 KS D 3753: 지식경제부 기술표준원 (2008).
13 JIS G 4404: Japanese Standards Association (2006).
14 ASTM A 681-08: ASTM International (2008).
15 G. Roberts, G. Krauss and R. Kennedy : Tool Steels, 5th ed, ASM International, Materials Park, OH (1998) 203-217.
16 J. P. McGulre : Advanced Stamping for High Strength Steels, in Great Designs in Steel Seminar, 2012, http://www.autosteel.org
17 E. Billur : Stamping Journal Jan/Feb (2010) 8-9.
18 K. Fukaura, H. Sunada, Y. Yokoyama, K. Teramoto, D. Yokoi and N. Tsujii : Tetsu-to-Hagane, 84 (1998) 72-77.
19 K. Fukaura, Y. Yokoyama, D. Yokoi, N. Tsujii and K. Ono : Metall. Mater. Trans. A, 35A (2004) 1289-1300.
20 I. Picas, N. Cuadrado, D. Casellas, A. Goez and L. Llanes : Procedia Engineering, 2 (2010) 1777-1785.   DOI
21 E. Martinez-Gonzalez, I. Picas, D. Casellas and J. Romeu : J. Acoustic Emission, 28 (2010) 163-169.
22 F. Arieta, E. B. M. netto, A. Reguly, W. K. Pannes, U. Beutler, F. van Soest and C. Ernst : J. ASTM Int., 8 (2011) 129-145.
23 김호영, 강전연, 손동민, 이대수, 이태호, 정우창, 조경목 : 열처리공학회지, 27 (2014) 242-252.
24 J.-Y. Kang, Y.-U. Heo, H. Kim, D.-W. Suh, D. Son, D. H. Lee and T.-H. Lee : Mater. Sci. Eng. A, A614 (2014) 36-44.
25 H. Kim, J.-Y. Kang, D. Son, T.-H. Lee and K.-M. Cho : Mater. Characterization, 107 (2015) 376-385.   DOI
26 강전연, 김호영, 손동민, 이재진, 윤효윤, 이태호, 박순근 : 열처리공학회지, 28 (2015) 181-189.
27 G. Roberts, G. Krauss and R. Kennedy : Tool Steels, 5th ed, ASM International, Materials Park, OH (1998) 251-290.
28 Uddeholm Caldie: http://www.uddeholm.com