Search Results - "Sha, J.B."

Effect of Mo additions on microstructure and tensile behavior of a Co–Al–W–Ta–B alloy at room temperature by Feng, G., Li, H., Li, S.S., Sha, J.B.

“…Phase constitutions, microstructures and room-temperature tensile behavior of Mo-doped Co–9Al–(9−x)W–2Ta–0.02B–xMo alloys (where x=0, 2, 4, 6, 9at.%) are…”
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Improvement of oxidation resistance of a Mo-62Si-5B (at.%) alloy at 1250°C and 1350°C via an in situ pre-formed SiO2 fabricated by spark plasma sintering by Wen, S.H., Zhou, C.G., Sha, J.B.

“…[Display omitted] •A Mo-Si-B-O pseudo alloy is obtained when fine Mo-62Si-5B (at.%) powder is sintered.•The Mo-Si-B-O alloy consists of fine MoSi2, Mo5Si3, MoB…”
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Isothermal and cyclic oxidation behaviours of MoSi2 with additions of B at 1250 °C prepared by spark plasma sintering by Wen, S.H., Sha, J.B.

“…Mo-Si-B alloys were obtained by spark plasma sintering (SPS) using Mo-57Si-10B and Mo-52Si-15B alloy powders, and the effects of the B content and powder size…”
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Ir–Hf–Zr ternary refractory superalloys for ultra-high temperatures—Phase and microstructural constitution by Sha, J.B., Yamabe-Mitarai, Y.

“…A phase and microstructural evaluation of Ir–Hf–Zr ternary alloys with a composition below 30 mol% (Hf + Zr) was conducted by microstructural observation using…”
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Microstructural evaluation and mechanical properties of Ir–Hf–Zr ternary alloys at room and high temperatures by Sha, J.B., Yamabe-Mitarai, Y., Harada, H.

“…Iridium is one of the most promising base metals for future high-temperature structural materials. Attempts to improve the high-temperature strength of Ir have…”
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Microstructural evolution at grain boundary and deformation mechanism of Nb0.5TiZrV0.5 refractory high entropy alloy doped with Ce at room temperature by Yao, H.L., Yu, Y.X., Sha, J.B.

“…•Doping 0.005 at.% Ce into RHEA has most pronounced effect of grain refinement.•Ce is found to preferentially segregate at grain boundaries (GBs).•BCC band…”
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High-throughput preparation and quick characterization of oxidation behaviors of complex Al–Cr compositional gradient coatings on a novel Co–Al–W–based superalloy prepared using multi-arc ion plating technology by Guan, Q., Guo, X.H., Fan, L.L., Meng, B.L., Sha, J.B.

“…The early oxidation behaviors of complex Al–Cr compositional gradient coatings on a novel Co–Al–W substrate prepared by multi-arc ion plating technology (MIPT)…”
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Dislocation evolution of a novel Co-Al-W based single crystal alloy with a γ-CoSS/γ’-Co3(Al, W) coherent microstructure around flow stress anomaly temperature from yielding to fracture by Zhang, B.S., Guan, Q., Yu, Y.X., Sha, J.B.

“…In this study, a novel single-crystal (SC) Co-9Al-9W-2Ta-0.02B-0.02Ce alloy with a growth direction of [001] was prepared by selecting crystal method (SCM)…”
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In-situ SEM and TEM tensile observations of novel Co-Al-W-Mo-Ta-B-Ce alloys with a coherent γ-CoSS/γ’-Co3(Al,W) microstructure at room temperature by Zhong, F., Yu, Y.X., Li, S.S., Sha, J.B.

“…Slip band-grain boundary interactions of γ’-Co3(Al,W)-strengthened Co-9Al-4.5W-4.5Mo-2Ta-0.02B-(0.01, 0.1)Ce alloys (referred to as 0.01Ce alloy and 0.1Ce…”
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Failure mode transition of Nb phase from cleavage to dimple/tear in Nb-16Si-based alloys prepared via spark plasma sintering by Liu, W., Sha, J.B.

“…The influence of Nb powder sizes and morphologies (equiaxed and flaky powders) on fracture behaviour of the Nb-16Si alloy and a Nb-16Si-22Ti-2Al-2Hf-7Cr alloy…”
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Microstructural evolution and oxidation behaviour of Mo-Si-B coatings on an Nb-16Si-22Ti-7Cr-2Al-2Hf alloy at 1250 °C prepared by spark plasma sintering by Wen, S.H., Zhou, C.G., Sha, J.B.

“…Mo-Si-(5, 10, 15)B ternary coatings were firstly coated on an Nb-Si based alloy using the spark plasma sintering technique. The Mo-Si-B coatings consisted of…”
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A comparative study on microstructures and tensile behaviours of a novel polycrystalline and single-crystal Co–9Al–9W–2Ta-0.02B-0.02Ce alloy at room and high temperatures by Zhang, B.S., Yu, Y.X., Tao, Z.L., Sha, J.B.

“…A comparative investigation in microstructure and mechanical properties of a novel as-cast polycrystalline and single-crystal (SC) Co–9Al–9W–2Ta-0.02B-0.02Ce…”
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High-throughput preparation and characterization of early hot-corrosion behaviors of compositional gradient Al–Cr complex coatings on a novel Co–Al–W-based alloy by Fan, L.L., Li, Y., Zhao, X.Y., Yu, Y.X., Zhou, C.G., Sha, J.B.

“…High-throughput characterization of early hot-corrosion behaviors of compositional gradient Al–Cr complex coatings on a novel Co–Al–W alloy prepared by…”
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Ultra-high strength of Ir–Hf–Nb ternary alloys with an fcc/L12 microstructure at 1950 °C by Sha, J.B., Yamabe-Mitarai, Y.

“…This paper investigates the strength response of Ir-xHf-yNb alloys (x = 3, 4, 5, 8, 9, 10 at.%, and y = 5, 6, 7, 11, 13, 15 at.%) with a dual-phase fcc/L12…”
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Effect of Fe additions on microstructure and mechanical properties of a multi-component Nb–16Si–22Ti–2Hf–2Al–2Cr alloy at room and high temperatures by Zhang, S.M., Zhou, J.R., Sha, J.B.

“…The phase constitutions, microstructural evolutions, and mechanical properties of Nb–16Si–22Ti–2Hf–2Al–2Cr–xFe alloys (where x = 1, 2, 4, 6 at.%, hereafter…”
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Microstructural evolution and mechanical properties of an Nb–16Si in-situ composite with Fe additions prepared by arc-melting by Zhou, J.R., Sha, J.B.

“…This paper deals with phase constitutions, microstructural evolutions, and mechanical properties of Nb–16Si–xFe in-situ composites (where x = 2, 4, 6 at.%,…”
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Ir–Nb–Si ternary refractory superalloys with a three-phase fcc/L1 2/silicide structure for high-temperature applications by Sha, J.B., Yamabe-Mitarai, Y.

“…Ir–Nb binary alloys doped with silicon have been used in this work to attain a three-phase fcc/L1 2/silicide structure. Typical Ir–Nb binary alloys, including…”
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Ir–Nb–Si ternary refractory superalloys with a three-phase fcc/L12/silicide structure for high-temperature applications by Sha, J.B., Yamabe-Mitarai, Y.

“…Ir-Nb binary alloys doped with silicon have been used in this work to attain a three-phase fcc/L12/silicide structure. Typical Ir-Nb binary alloys, including a…”
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Phase and microstructural evolution of Ir–Si binary alloys with fcc/silicide structure by Sha, J.B., Yamabe-Mitarai, Y.

“…To search hardening approach or new probable phases benefiting to high temperature behavior of Ir-based superalloys, Ir alloyed with Si was employed…”
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Saturated solid-solution hardening behavior of Ir–Hf–Nb refractory superalloys for ultra-high temperature applications by Sha, J.B., Yamabe-Mitarai, Y.

“…The principles of multi-component alloying and saturated solid-solution hardening were combined for the design and development of Ir-based alloys for…”
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