Theoretical prediction and experimental observation for microstructural evolution of undercooled nickel–titanium eutectic type alloys

Luo, Shaobo; Wang, W.L.; Xia, Z.C.; Wei, B.

doi:10.1016/j.jallcom.2016.09.078

Cited by 6 publications

(1 citation statement)

References 33 publications

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“…Generally, under equilibrium conditions, the solidification microstructure of eutectic Sn-0.7wt.%Cu alloy should mainly appear as regular Sn-Cu6Sn5 eutectics while the microstructure of the experimental Sn-0.7wt.%Cu alloy is characterized by mainly primary β-Sn phase. This phenomenon was also observed in high speed solidification of Sn-Cu and other binary system [43,44]. At a high cooling rate, 'off-eutectic' structure (primary dendrites and eutectics) are likely to be observed, although the alloy is at eutectic composition.…”

Section: Solidification and Microstructural Evolution Of As-cast Sn-csupporting

confidence: 53%

Microstructure and mechanical properties of Sn–Cu alloys for detonating and explosive cords

Liu

Grechcini³

et al. 2017

Materials Science and Technology

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In order to develop alloys as the substitute of Pb-based materials for shielding materials in detonating and explosive cords, the materials requirement was analyzed and Sn-Cu based alloys were selected as candidates for this purpose. Four alloys including Sn-0.3wt.%Cu, Sn-0.5wt.%Cu, Sn-0.7wt.%Cu, and Sn-1.0wt.%Cu were processed from melting, casting, rolling, and annealing. The microstructure and mechanical properties of the alloys were investigated under as-cast, as-rolled and as-annealed conditions. The results confirmed that Sn-Cu based alloys are the appropriate substitute of Pb-based alloys for the application of detonating and explosive cords. The advantages of Sn-Cu alloys include resource abundant, low materials cost, non-toxicity for health and environment, relatively high density for supplying sufficient impulse energy and momentum for penetration, acceptable mechanical properties, and easy in melting, casting, extrusion, rolling and drawings. The microstructure of hypoeutectic Sn-Cu alloys was characterized by Sn-Cu solution and Sn-Cu6Sn5 eutectic phase. The annealing heat treatment was not able to modify the microstructure. The Sn-Cu based alloys with 0.3 to 1.0wt.%Cu offered the yield strength from 26.1 to 50.8MPa, ultimate tensile strength from 30.1 to 51.5MPa and elongation from 87.5 to 56.0%, which were comparable with the mechanical properties of the currently used Pb-based alloys. More importantly, Sn-Cu alloys exhibited strain softening under tensile stress, which was critically beneficial to the shielding manufacture and subsequent processing after assembly with high-energy explosive materials.

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Section: Solidification and Microstructural Evolution Of As-cast Sn-csupporting

confidence: 53%

Microstructure and mechanical properties of Sn–Cu alloys for detonating and explosive cords

Liu

Grechcini³

et al. 2017

Materials Science and Technology

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Phase selection and microstructure evolution within eutectic Ti-Si alloy solidified at containerless state

Luo

Chang

Wang

2022

Sci. China Technol. Sci.

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Microstructure evolution, solidification characteristic and magnetocaloric properties of MnFeP0·5Si0.5 particles by droplet melting

Zhang

et al. 2021

Intermetallics

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Theoretical prediction and experimental observation for microstructural evolution of undercooled nickel–titanium eutectic type alloys

Cited by 6 publications

References 33 publications

Microstructure and mechanical properties of Sn–Cu alloys for detonating and explosive cords

Microstructure and mechanical properties of Sn–Cu alloys for detonating and explosive cords

Phase selection and microstructure evolution within eutectic Ti-Si alloy solidified at containerless state

Microstructure evolution, solidification characteristic and magnetocaloric properties of MnFeP0·5Si0.5 particles by droplet melting

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