Laser beam welding of SiC-particle-reinforced aluminum metal matrix composite

Chen, Yong-lai; Shaban, A.; Yu, Ligen; Wang, Hua Ming

doi:10.1117/12.361108

Cited by 9 publications

(6 citation statements)

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“…As reported by Chen et al (2002), the affinity between Ti and C in welding process was greater than that of Al and C, which meant that Ti was easier to react with C under high temperature. Therefore, the chemical reaction (2) would take precedence over the reaction (1).…”

Section: Laser Welding With Ti Interlayermentioning

confidence: 66%

“…For instance, Niu et al (2006) suggested that the weldability of SiC p /AMCs could be improved by increasing content of Si in filler metal so as to raise activity value of Si. With the use of Ti filler, Al 4 C 3 brittle phases in laser weld joints were suppressed by the preferential generation of TiC and Ti 5 Si 3 , as demonstrated by Wang et al (2000), Guo (2010), andChen et al (2002). Meanwhile, Long et al (2020) indicated that the addition of Zr into molten pool had an excellent removal function for porosity defects and the suppression function for brittle phases.…”

Section: Introductionmentioning

confidence: 98%

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Influence of Welding Process on Microstructure and Properties of Laser Welding of SiCp/6061 Al Matrix Composite

Cao

Zhu

et al. 2021

Front. Mater.

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Direct laser welding, laser welding with Ti interlayer, and ultrasonic-assisted laser welding with Ti interlayer were used to join SiCp/6061 Al matrix composites. Microstructural evolutions, compositional distributions and tensile strengths under three processes were compared and analyzed. The experimental results showed that ultrasonic-assisted laser welding with Ti interlayer can obtain joints with good continuity and without obvious defects. Due to combined effects of Ti interlayer and ultrasonic, formation of brittle Al4C3 phase was greatly suppressed and fine TiC precipitates were also uniformly distributed in weld metal. The strength shown by the welded joints could reach up to 77.2% of the strength of the base material. Because of the internal defects (voids and pores) and the generated large numbers of brittle phases of Al4C3 in weld metal, the joint strength shown by the other two techniques, direct laser welding and laser welding with Ti interlayer, only reached 49.4 and 64.8% of the base material strength, respectively.

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Section: Laser Welding With Ti Interlayermentioning

confidence: 66%

Section: Introductionmentioning

confidence: 98%

Influence of Welding Process on Microstructure and Properties of Laser Welding of SiCp/6061 Al Matrix Composite

Cao

Zhu

et al. 2021

Front. Mater.

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“…Yue et al (1998) reduce the laser power while adopting a pre-welding treatment using a brush plating technique. Chen et al (1999Chen et al ( , 2000 increase welding speed while using titanium to suppress the formation of Al 4 C 3 . Gopinathan et al (1993) complete their research work on CO 2 laser welding of A356/SiC with differing volume fractions of SiC particles.…”

Section: Literature Reviewmentioning

confidence: 98%

Laser and resistance joining of aluminum–graphite composite

Velamati

Aguilar

Garza-Castañón

et al. 2012

Journal of Materials Processing Technology

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“…As summarized below in Table 2 MMCs [39,56,57]. Although these problems can, to some extent, be lessened through adjusting the laser process parameter, complete prevention of them, especially interfacial reaction between matrix and reinforcement, is almost impossible by only changing the process parameter [58][59][60]. The use of different types of filler metals seems to be a promising method to solve these problems [14][15][16]61], which is detailed in the following sections.…”

Section: Laser Welding Of Mmcsmentioning

confidence: 99%

Joining of Al-B4C metal matrix composites by laser welding and friction stir welding /

Guo¹

2012

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AI-B4C MMCs are important materials as neutron absorber in spent nuclear fuel storage and transportation due to their high boron ( 10 B) concentration and thus high neutron absorption capability. However, wide application of these materials is still limited due to the lack of suitable joining techniques to fully take advantage of the materials. Problems such as porosity and chemical reaction between Al matrix and B4C particles can arise during fusion welding of the material. Therefore, the present study is intended to find effective and reliable welding techniques for AI-B4C MMCs. The weldability of AA1100-16%B 4 C (particle size: 11 pirn) and AA1100-30%B 4 C MMCs (median particle size: 15 pirn) was evaluated using laser welding and friction stir welding. In comparison with conventional arc welding techniques, the deep and narrow fusion zones associated with laser welding can result in smaller heat affected zones, and thus less thermal distortion and mechanical property degradation. On the other hand, friction stir welding, as a solid state process, seems promising as it can avoid various problems that may otherwise be encountered during fusion welding of MMCs.For laser welding without filler, it was found that most B4C particles were decomposed during welding leading to formation of needle-like AIB2 and AI3BC phases in the weld. In this case, a joint efficiency of 63% (UTS) after tensile test was obtained. The variation of laser power from 2 to 4 kW and welding speed from 1 to 2.5 m/min did not affect the needle-like morphology. Based on thermodynamic calculation, Ti filler was used as the filler material aiming to improve the properties of laser joints. It was found that the addition of Ti with 150 |nm thick foil increased the joint efficiency to 75% due to the decrease of size and quantities of needle-like phases. The addition of Ti with filler wire instead of Ti foil did not show significant mechanical property improvement due to the Ti segregation and microstructure inhomogeneity in the weld zone.On the other hand, the feasibility of friction stir welding for joining AA1100 based metal matrix composites reinforced with B 4 C particulate was studied for 16 and 30%B 4 C volume concentrations. For both composites, friction stir welding has a significant influence on the particle size distribution and the matrix grain size. For the AA1100-16%B4C composite, the average particle size decreases after welding by -20% and the grain size from 15 to 5 [xm as measured in the weld nugget. Tensile testing of welded joints showed up to 100% joint efficiency for both annealed AA1100-16%B 4 C and AA1100-30%B4C composite materials. However, if the ultimate tensile strength values of all the studied composites are similar at -130 MPa, the weld ductility is higher for the annealed materials. In addition, it was observed that varying the welding speed between 100 and 275 mm/min does not influence the joint tensile properties and the particle size distribution in the nugget. Furthermore, a welding tool made of WC-Co show...

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Laser beam welding of SiC-particle-reinforced aluminum metal matrix composite

Cited by 9 publications

References 0 publications

Influence of Welding Process on Microstructure and Properties of Laser Welding of SiCp/6061 Al Matrix Composite

Influence of Welding Process on Microstructure and Properties of Laser Welding of SiCp/6061 Al Matrix Composite

Laser and resistance joining of aluminum–graphite composite

Joining of Al-B4C metal matrix composites by laser welding and friction stir welding /

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