Microstructure and Reliability of Laser Jet Solder Ball Bonding Solder Joints

Yu, Xiaolin; Li, Mengyu; Chun-Jing, YU

doi:10.3724/sp.j.1037.2010.00146

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…The previously published findings manifest that, the brittle β-Mg 17 Al 12 phase is prone to crack and the crack usually propagates along the interface between β-Mg 17 Al 12 phase and Mg matrix, resulting in large cracks on the fracture surface 4 . Similar investigation has also been mentioned 5 , α-Mg matrix has a HCP structure, while β-Mg 17 Al 12 phase possesses a BCC structure, which causes the interface between α-Mg matrix and β-Mg 17 Al 12 phase to become fragile, leading to the formation of micro-cracks at Mg/β-Mg 17 Al 12 phase interface. It is worth mention that β-Mg 17 Al 12 phase in Mg-Al system alloys will undergo softening and cannot play a role in hindering grain boundaries slide when the service temperature exceeds 393 K 6 .…”

Section: Introductionsupporting

confidence: 71%

Microstructural Evolution and Mechanical Properties of As-Cast Mg-12Zn Alloys with Different Al Additions

Zhang

Yang

et al. 2020

Mat. Res.

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In this study, Mg-12Zn magnesium alloys alloyed with Al additions (0, 2, 4, 6, 8 and 10, wt.%) were fabricated by permanent mould casting. The Al content on their microstructure and mechanical properties were systematically examined with an optical microscope (OM), a scanning electron microscope (SEM), an X-ray diffractometer (XRD) and mechanical tests at room temperature. The experimental results indicate that the microstructure of the alloys is mainly composed of α-Mg and semi-continuous or continuous eutectic phases. A higher addition of Al (≥6%) causes the generation of the Mg 17 Al 12 phases. Notably, the grain sizes of the alloys gradually decrease, whilst the partial morphology of some eutectic phases is modified into lamellar structure with increasing of Al addition. Mechanical properties characterization manifested that, the alloys with different Al additions reveal distinguishing tensile properties. Among them, the alloy with 4% Al provides an excellent mechanical properties, i.e., a UTS of 206 MPa and an EL of 7.92%, which is respectively higher 28 MPa and 1.08% than that of ZA120 alloy. The deterioration in the tensile properties for the higher Al-bearing alloys is possibly related to the lamellar structure, coarse and continuous network morphology and β-Mg 17 Al 12 phases, respectively.

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Section: Introductionsupporting

confidence: 71%

Microstructural Evolution and Mechanical Properties of As-Cast Mg-12Zn Alloys with Different Al Additions

Zhang

Yang

et al. 2020

Mat. Res.

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“…Strengthening phases Cr 7 C 3 and TiC precipitated in the cooling and solidification process to improve the abrasion and oxidation resistance. The research papers of H.M. Wang [6] , X.K. Chen [7] , St. Bonss [8] successively reported the laser gas alloying experiments on the surface of TiAl and Ti6Al4V.…”

Section: The Dissolution and Precipitation Behavior Of Ceramic Phasesmentioning

confidence: 99%

Study on Behavior of Ceramic Phases in Laser Surface Ceramic Process

Fang

2012

AMR

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Microstructure, mechanical properties and thermal conductivity of the short carbon fiber reinforced magnesium matrix composites

Hou

Wang

et al. 2017

Journal of Alloys and Compounds

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Microstructure and Reliability of Laser Jet Solder Ball Bonding Solder Joints

Cited by 5 publications

References 8 publications

Microstructural Evolution and Mechanical Properties of As-Cast Mg-12Zn Alloys with Different Al Additions

Microstructural Evolution and Mechanical Properties of As-Cast Mg-12Zn Alloys with Different Al Additions

Study on Behavior of Ceramic Phases in Laser Surface Ceramic Process

Microstructure, mechanical properties and thermal conductivity of the short carbon fiber reinforced magnesium matrix composites

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