The Experts below are selected from a list of 422970 Experts worldwide ranked by ideXlab platform
Thomas Bell - One of the best experts on this subject based on the ideXlab platform.
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The effect of Treatment Condition on boost diffusion of thermally oxidised titanium alloy
Journal of Alloys and Compounds, 2006Co-Authors: Zhen Xue Zhang, Hanshan Dong, Thomas BellAbstract:Abstract A two-step oxygen boost diffusion process has been developed to produce deep hard case on titanium alloys. The dissociation process of the oxide layer in the boost diffusion was investigated in detail. The process parameters have been optimised to tailor the oxygen profile to fit the engineering requirements. Metallographic, X-ray diffraction examinations as well as mechanical testing were performed to evaluate the boost diffused treated samples.
Shuichi Miyazaki - One of the best experts on this subject based on the ideXlab platform.
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Effect of heat Treatment Condition on microstructure and superelastic properties of Ti24Zr10Nb2Sn
Journal of Alloys and Compounds, 2019Co-Authors: Luis López Pavón, Enrique López Cuéllar, Saraí Villalpando Hernandez, Iván E. Moreno-cortez, Hee Young Kim, Shuichi MiyazakiAbstract:Abstract The effect of heat Treatment time and temperature on the microstructure and superelasticity of a recently developed Ti24Zr10Nb2Sn (at.%) superelastic alloy for biomedical purpose was investigated. As rolled specimens were annealed at temperatures between 773 K and 1173 K for times from 0.18 ks to 10.8 ks. Above 873 K, XRD analysis revealed only β phase at room temperature and outstanding superelasticity was observed in all annealed Conditions, the minimal value of the recovery strain was found to be 5% and the maximum was 7%. The superelastic recovery is strongly favored by the texture with the strong β(200) peak. The temperature effect on superelastic properties was more significant than the time effect. Finally, abnormal grain growth phenomenon was observed by scanning electron microscope (SEM) and transmission electron microscope (TEM) in the specimen annealed at 1173 K for 10.8 ks and its presence is not desirable for cycling stability.
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Effect of Heat Treatment Condition on Texture in Ti-Mo-Al-Zr Shape Memory Alloy
Advanced Materials Research, 2014Co-Authors: Sasaki Tomoya, Katsunori Hiramatsu, Masaki Tahara, Hideki Hosoda, Shuichi Miyazaki, Tomonari InamuraAbstract:Effect of solution-Treatment Condition on texture of a Ti-Mo-Al-Zr shape memory alloy was investigated by X-ray pole figure measurement. Ti-Mo-Al-Zr alloy is a Ni-free and β-Ti based biomedical shape memory alloy. Unlike Ti-Nb system alloys, {110}β β recrystallization texture was developed by the solution-Treatment above β-transus as the reduction rate increases. However, this texture disappeared by the solution-Treatment below β-transus and {531}β β recrystallization texture was strongly developed. It was found that precipitation of hcp α phase has a significant effect on recrystallization texture in this alloy.
R Burapa - One of the best experts on this subject based on the ideXlab platform.
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effect of heat Treatment t6 on the friction stir welded ssm 6061 aluminum alloys
Energy Procedia, 2014Co-Authors: Worapong Boonchouytan, Jaknarin จกรนรนทร ฉตรทอง Chatthong, Surasit สรสทธ ระวงวงศ Rawangwong, R BurapaAbstract:Abstract The butt joints of semi solid metal 6061 were produced in as cast Conditions by friction stir welding process (FSW). This experiment studied in pre/post heat Treatment (T6) using the welding speed 160 mm / min with tilt angle tool at 3 degree and straight cylindrical tool pin. The factors of welding were rotating speed rates at 710, 1000, 1400 rpm and heat Treatment Conditions. They were divided into (1) As welded (AW) joints, (2) T6 Weld (TW) joints, (3) Weld T6 (WT) joints, (4) T6 Weld T6 (TWT) joints, (5) Solution treated Weld Artificially aged (SWA) joints and (6) Weld Artificially aged (WA) joints. Rotating speed and heat Treatment (T6) Condition were an important factor to micro, macro structure of metal and mechanical properties of the weld. Increasing rotating speed and different heat Treatment Condition impacted onto tensile strength due to the defects on joints. Therefore the optimum welding parameter on joint was a rotating speed 1400 rpm, the welding speed 160 mm/min, heat Treatment Condition of Solution treated Weld Artificially aged (SWA) which obtained the highest tensile strength 179.80 MPa, as well as, the maximum average hardness of 92.7 HV at tool rotation speed 1400 rpm, welding speed 160 mm/min, heat Treatment Condition of Weld T6 (WT).
Zhen Xue Zhang - One of the best experts on this subject based on the ideXlab platform.
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The effect of Treatment Condition on boost diffusion of thermally oxidised titanium alloy
Journal of Alloys and Compounds, 2006Co-Authors: Zhen Xue Zhang, Hanshan Dong, Thomas BellAbstract:Abstract A two-step oxygen boost diffusion process has been developed to produce deep hard case on titanium alloys. The dissociation process of the oxide layer in the boost diffusion was investigated in detail. The process parameters have been optimised to tailor the oxygen profile to fit the engineering requirements. Metallographic, X-ray diffraction examinations as well as mechanical testing were performed to evaluate the boost diffused treated samples.
Tohru Takagishi - One of the best experts on this subject based on the ideXlab platform.
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Modification of Tencel with Treatment of Ferric Sodium Tartrate Complex Solution I. Effect of Treatment Condition
Cellulose, 2001Co-Authors: Katsuji Kasahara, Hiroaki Sasaki, Nobuo Donkai, Tohru Yoshihara, Tohru TakagishiAbstract:Partial dissolution of cellulose by ferric sodium tartrate complex (FeTNa) solution was examined as refining Treatment of the organic-solvent spun cellulose fiber (Tencel). The Treatment Conditions were discussed in terms of solvent strength, temperature, duration of the Treatment, and free NaOH concentration by measuring the weight loss, crystallinity, and tenacity of the resultant yarns. For improving fibrillation resistance, the optimized solution of the FeTNa complex was composed of 1–1.5M FeCl3 with 20% excess sodium tartrate and 1 N free NaOH, and the duration of the Treatment was 60 min at 20°C. The loss in weight and tenacity could be maintained as low as 5% and 30–40%, respectively, by the optimized Conditions. The resulting yarn showed significantly improved fibrillation resistance.
