In this study, aluminium-silicon alloy AlSi10Mg powder of spherical morphology was mixed with niobium carbide powder had irregular morphology in weight percentages of 2, 4, 6 and 8 and processed in a planetary ball mill apparatus. The optimal conditions for powder processing were a mixing time of 1.95 h and a speed of 71 RPM without milling balls. The use of milling balls was avoided to maintain the morphology of AlSi10Mg from degradation and improve the flowability of composite powder. To evaluate the flowability of processed powders, flow properties such as apparent density, tapped density, Hausner’s ratio, Carr index, static angle of repose and Hall flow rate were determined. Selective laser melting was used to fabricate AlSi10Mg composite specimens with varying percentages of niobium carbide. Finally, at 6% niobium carbide, the selective laser melting cube specimen had a maximum relative density of 99.21%.
MauduitAPillotSFrascatiF. Application study of AlSi10Mg alloy by selective laser melting: physical and mechanical properties, microstructure, heat treatments and manufacturing of aluminium metallic matrix composite (MMC). Metall Res Technol2015; 112: 605(1–23).
2.
Raj MohanRVenkatramanRRaghuramanS. An overview Of additive manufacturing – approaches, techniques, trends And challenges In manufacturing scenario. Int J Mech Prod Eng Res Dev2018; 8: 289–302.
3.
MarjanovićPJonesMG. Assessment of a New technique for measuring flow properties of powdered materials stored in hoppers. P I MECH ENG E-J PRO1996; 210: 1–8.
4.
KulkarniPABerryRJBradleyMSA. Review of the flowability measuring techniques for powder metallurgy industry. P I MECH ENG E-J PRO2010; 224: 159–168.
5.
SpieringsABVoegtlinMBauerT, et al. Powder flowability characterisation methodology for powder-bed-based metal additive manufacturing. Prog Addit Manuf2016; 1: 9–20.
6.
RienerKAlbrechtNZiegelmeierS, et al. Influence of particle size distribution and morphology on the properties of the powder feedstock as well as of AlSi10Mg parts produced by laser powder bed fusion (LPBF). Addit Manuf2020; 34: 101286.
7.
SercombeTBLiX. Selective laser melting of aluminium and aluminium metal matrix composites: review. Mater Technol2016; 31: 1–9.
8.
KolloLLeparouxMBradburyCR, et al. Investigation of planetary milling for nano-silicon carbide reinforced aluminium metal matrix composites. J Alloys Compd2010; 489: 394–400.
9.
XueGKeLLiaoH, et al. Effect of SiC particle size on densification behavior and mechanical properties of SiCp/AlSi10Mg composites fabricated by laser powder bed fusion. J Alloys Compd2020; 845: 156260.
10.
AshwathPXaviorMA. The effect of ball milling & reinforcement percentage on sintered samples of aluminium alloy metal matrix composites. Procedia Eng2014; 97: 1027–1032.
11.
KimHS. On the rule of mixtures for the hardness of particle reinforced composites. Mater Sci Eng A2000; 289: 30–33.
12.
LathabaiS. Additive manufacturing of aluminium-based alloys and composites. In: Fundamentals of aluminium metallurgy. United Kingdom: Elsevier, 2018, pp. 47–92.
13.
XiXChenBTanC, et al. Microstructure and mechanical properties of SiC reinforced AlSi10Mg composites fabricated by laser metal deposition. J Manuf Process2020; 58: 763–774.
14.
XueGKeLZhuH, et al. Influence of processing parameters on selective laser melted SiCp/AlSi10Mg composites: densification, microstructure and mechanical properties. Mater Sci Eng A2019; 764: 138155.
15.
BaiSLeeHJLiuJ. 3D Printing with mixed powders of boron carbide and Al alloy. Appl Sci2020; 10: 3055.
16.
LiCSunSLiuC, et al. Microstructure and mechanical properties of TiC/AlSi10Mg alloy fabricated by laser additive manufacturing under high-frequency micro-vibration. J Alloys Compd2019; 794: 236–246.
17.
GuDWangHChangF, et al. Selective Laser melting additive manufacturing of TiC/AlSi10Mg bulk-form nanocomposites with tailored microstructures and properties. Phys Procedia2014; 56: 108–116.
18.
YuanPGuDDaiD. Particulate migration behavior and its mechanism during selective laser melting of TiC reinforced Al matrix nanocomposites. Mater Des2015; 82: 46–55.
19.
ZhouSYWangZYSuY, et al. Effects of micron/submicron TiC on additively manufactured AlSi10Mg: a comprehensive study from computer simulation to mechanical and microstructural analysis. JOM2020; 72: 3693–3704.
20.
KimHSHongSIKimSJ. On the rule of mixtures for predicting the mechanical properties of composites with homogeneously distributed soft and hard particles. J Mater Process Technol2001; 112: 109–113.
21.
AsachiMNourafkanEHassanpourA. A review of current techniques for the evaluation of powder mixing. Adv Powder Technol2018; 29: 1525–1549.
22.
GargPJamwalAKumarD, et al. Advance research progresses in aluminium matrix composites: manufacturing & applications. J Mater Res Technol2019; 8: 4924–4939.
23.
TravessaDNSilvaMJCardosoKR. Niobium carbide-reinforced Al matrix composites produced by high-energy ball milling. METALL MATER TRANS B2017; 48: 1754–1762.
24.
CarsonJWPittengerBH. Bulk properties of powders. In: ASM Handbook volume 7: powder metal technologies and applications. Ohio: ASM International, 1998, pp. 287–301.
25.
GeldartDAbdullahECHassanpourA, et al. Characterization of powder flowability using measurement of angle of repose. China Particuology2006; 4: 104–107.
26.
ZegzulkaJGelnarDJezerskaL, et al. Characterization and flowability methods for metal powders. Sci Rep2020; 10: 21004.
27.
KaleemMAAlamMZKhanM, et al. An experimental investigation on accuracy of Hausner ratio and Carr index of powders in additive manufacturing processes. Met Powder Rep2020; xxx: 1–5.
