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The effect of in-situ formed TiB2 particles on microstructural and mechanical properties of laser melted copper alloy

Jelena Stašić and Dušan Božić


Mixed Cu-4Ti (wt.%) and Cu-1.4B (wt.%) powders were separately mechanically alloyed and then homogenized. The obtained powder was laser melted by pulsed Nd:YAG laser and heat treated at 900 °C for 10 h in argon. 3D compacts were characterized by means of digital camera images, optical microscopy and scanning electron microscopy. Microstructure after laser melting varies regionally due to mixing of two different mechanically alloyed powders and contains in-situ formed microparticles of primary TiB2. Formation of secondary TiB2 nanoparticles was possible only after high temperature heat treatment (900 °C, for 10 h) as concluded from X-ray diffraction analysis, chemical analysis, and microhardness tests of laser melted and heat treated parts. Copper matrix was strengthened to a significantly higher extent after the formation of secondary TiB2 nanoparticles.

Correspondence address, Dr. Jelena Stašić, Institute of Nuclear Sciences “Vinča”, University of Belgrade, Mike Petrovića Alasa 12–14, 11001 Belgrade, Serbia. Tel.: +381 113408779, E-mail:


[1] A. Atrens , J.Nairn, H.Fernee, K.Fitzgerald, G.Skennerton, A.Olofinjana: Mater. Forum21 (1997) 57.Search in Google Scholar

[2] L. Lu , Y.Shen, X.Chen, L.Qian, K.Lu: Science304 (2004) 422. PMid:15031435; 10.1126/science.1092905Search in Google Scholar

[3] K. Maki , Y.Ito, H.Matsunaga, H.Mori: Scr. Mater.68 (2013) 777. 10.1016/j.scriptamat.2012.12.027Search in Google Scholar

[4] W.A. Soffa , D.E.Laughlin: Prog. Mater. Sci.49 (2004) 347. 10.1016/S0079-6425(03)00029-XSearch in Google Scholar

[5] J.R. Groza , J.C.Gibeling: MSEA171 (1993) 115. 10.1016/0921-5093(93)90398-XSearch in Google Scholar

[6] J.R. Davis : ASM Specialty Handbook: Copper and Copper Alloys, ASM International, Materials Park, Ohio (2001).Search in Google Scholar

[7] J.P. Tu , N.Y.Wang, Y.Z.Yang, W.X.Qi, F.Liu, X.B.Zhang, H.M.Lu, M.S.Liu: Mater. Lett.52 (2002) 448. 10.1016/S0167-577X(01)00442-6Search in Google Scholar

[8] A. Lawley , D.Apelian: Powder Metall.37 (1994) 123. 10.1179/pom.1994.37.2.123Search in Google Scholar

[9] S.J. Dong , Y.Zhou, Y.W.Shi, B.H.Chang: Metall. Mater. Trans.A 33 (2002) 1275. 10.1007/s11661-002-0228-9Search in Google Scholar

[10] D. Bozic , M.Mitkov: Mater. Sci. Technol.8 (1992) 1108. 10.1179/mst.1992.8.12.1108Search in Google Scholar

[11] L.Y. Gu , G.Y.Liang, Z.B.Zheng: J. Mater. Eng. Perform.16 (2007) 554. 10.1007/s11665-007-9089-0Search in Google Scholar

[12] J. Stašić , D.Božić: Obtaining of reinforced Cu-Ti, Cu-Ti-TiB2 and Cu-TiB2 foils through green compact laser sintering, Proc. Particle-Based Materials Symposium, Saarbrücken, Germany (2017) p. 85.Search in Google Scholar

[13] C.C. Leong , L.Lu, J.Y.H.Fuh, Y.S.Wong: Mater. Sci. Eng.A 338 (2002) 81. 10.1016/S0921-5093(02)00050-3Search in Google Scholar

[14] A. Chrysanthou , G.Erbaccio: J. Mater. Sci.30 (1995) 6339. 10.1007/BF00369685Search in Google Scholar

[15] J. Lee , J.Y.Jung, E.S.Lee, W.J.Park, S.Ahn, N.J.Kim: Mater. Sci. Eng.A 277 (2000) 274. 10.1016/S0921-5093(99)00551-1Search in Google Scholar

[16] D. Bozic , J.Stasic, J.Ruzic, M.Vilotijevic, V.Rajkovic: Mater. Sci. Eng.A 528 (2011) 8139. 10.1016/j.msea.2011.07.061Search in Google Scholar

[17] J. Ruzic , J.Stasic, V.Rajkovic, D.Bozic: Mater. Des.62 (2014) 409. 10.1016/j.matdes.2014.05.036Search in Google Scholar

[18] J. Stašić , D.Božić: Rapid Prototyping Journal25 (2019) 47. 10.1108/RPJ-07-2017-0136Search in Google Scholar

[19] J. Stašić , D.Božić: J. Alloys Compd.762 (2018) 231. 10.1016/j.jallcom.2018.05.135Search in Google Scholar

[20] M. Guo , K.Shen, M.Wang: Acta Mater.57 (2009) 4568. 10.1016/j.actamat.2009.06.030Search in Google Scholar

[21] M.X. Guo , M.P.Wang, K.Shen, L.F.Cao, Z.Li, Z.Zhang: J. Alloys Compd.460 (2008) 585. 10.1016/j.jallcom.2007.06.026Search in Google Scholar

[22] G.A. Yasinskaya : Sov. Powder Metall. Met. Ceram.5 (1966) 557. 10.1007/BF00780116Search in Google Scholar

[23] D.M. Stefanescu , B.K.Dhindaw, S.A.Kacar, A.Moitra: Metall. Trans.A 19 (1988) 2847. 10.1007/BF02645819Search in Google Scholar

[24] M. Sobhani , H.Arabi, A.R.Mirhabibi: JNS2 (2013) 519. 10.7508/jns.2012.04.016Search in Google Scholar

Received: 2019-04-18
Accepted: 2019-10-01
Published Online: 2020-01-31
Published in Print: 2020-02-12

© 2020, Carl Hanser Verlag, München