The effect of in-situ formed TiB 2 particles on microstructural and mechanical properties of laser melted copper alloy
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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. Micro-structure 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.
Кључне речи:
Cu-Ti-B powder / Mechanical alloying / Laser melting / Heat treatment / TiB2 in-situ reinforcementИзвор:
International Journal of Materials Research, 2020, 111, 2, 153-159Финансирање / пројекти:
- Утицај нано и микроструктурних конституената на синтезу и карактеристике савремених композитних материјала са металном основом (RS-MESTD-Basic Research (BR or ON)-172005)
DOI: 10.3139/146.111865
ISSN: 1862-5282
WoS: 000514817600006
Scopus: 2-s2.0-85082241534
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Институција/група
VinčaTY - JOUR AU - Stašić, Jelena AU - Božić, Dušan PY - 2020 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8913 AB - 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. Micro-structure 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. T2 - International Journal of Materials Research T1 - The effect of in-situ formed TiB 2 particles on microstructural and mechanical properties of laser melted copper alloy VL - 111 IS - 2 SP - 153 EP - 159 DO - 10.3139/146.111865 ER -
@article{ author = "Stašić, Jelena and Božić, Dušan", year = "2020", abstract = "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. Micro-structure 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.", journal = "International Journal of Materials Research", title = "The effect of in-situ formed TiB 2 particles on microstructural and mechanical properties of laser melted copper alloy", volume = "111", number = "2", pages = "153-159", doi = "10.3139/146.111865" }
Stašić, J.,& Božić, D.. (2020). The effect of in-situ formed TiB 2 particles on microstructural and mechanical properties of laser melted copper alloy. in International Journal of Materials Research, 111(2), 153-159. https://doi.org/10.3139/146.111865
Stašić J, Božić D. The effect of in-situ formed TiB 2 particles on microstructural and mechanical properties of laser melted copper alloy. in International Journal of Materials Research. 2020;111(2):153-159. doi:10.3139/146.111865 .
Stašić, Jelena, Božić, Dušan, "The effect of in-situ formed TiB 2 particles on microstructural and mechanical properties of laser melted copper alloy" in International Journal of Materials Research, 111, no. 2 (2020):153-159, https://doi.org/10.3139/146.111865 . .