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Author

Shuzhi Zhang

Other affiliations: Harbin Institute of Technology
Bio: Shuzhi Zhang is an academic researcher from Taiyuan University of Technology. The author has contributed to research in topics: Microstructure & Alloy. The author has an hindex of 14, co-authored 36 publications receiving 447 citations. Previous affiliations of Shuzhi Zhang include Harbin Institute of Technology.

Papers
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Journal ArticleDOI
TL;DR: In this paper, the effect of deformation temperature on microstructure evolution and mechanical properties of a near α titanium alloy during isothermal multiple die forging (IMDF) is systematically investigated.

69 citations

Journal ArticleDOI
TL;DR: In this article, the deformation mechanism of α phase is dynamic recovery at 1275°C, whereas γ phase is mainly dynamic recrystallized, and the reasons of the different deformation behavior between 1225°C and 1275 ǫ c, as well as the difference deformation behaviour between α and γ phases are analyzed.

63 citations

Journal ArticleDOI
TL;DR: In this article, a new type beta-gamma TiAl alloy of nominal composition of Ti-44Al-4Nb-4V-0.3Mo-Y (at%) was fabricated by induction skull melting, which was designed based on the study of the microstructural effects of Mo, Cr, V, and Nb on TiAl Alloy.
Abstract: New type beta-gamma TiAl alloy of nominal composition of Ti-44Al-4Nb-4V-0.3Mo-Y (at%) was fabricated by induction skull melting, which was designed based on the study of the microstructural effects of Mo, Cr, V, and Nb on TiAl alloy. The microstructure, oxidation resistance, hot workability, and tensile properties were studied by SEM in BSE mode, XRD, Gleeble 3800, as well as Instron 5500 R, respectively. The oxidation resistance of this new designed Mo containing beta-gamma TiAl alloy was better than that of only Nb and V containing beta-gamma TiAl alloy. With a better hot workability at temperature under 1200 °C, Ti-44Al-4Nb-4V-0.3Mo-Y alloy was successfully hot forged at 1150 °C with a traditional hydraulic machine without thermal insulation measure. Though containing abound order β 0 phase, the new fabricated beta-gamma TiAl alloy still has a high elongation at 850 °C, because of less α 2 +γ lamellar colonies containing. Benefits of partly replacing Mo with V was avoiding omega phase precipitation, and not damaging the hot workability.

46 citations

Journal ArticleDOI
TL;DR: In this article, the microstructure evolution and tensile properties of the composites during direct rolling were investigated, and the results showed that increasing of the rolling deformation contributes to the refinement of primary α phase (αp) and the improvement of the distribution uniformity of TiBw and TiCp.
Abstract: In this paper, as cast 2.5 vol% (TiBw+TiCp)/Ti composites were subjected to direct rolling down to 45%, 65% and 85% reduction in thickness in the (α+β) phase region. The microstructure evolution and tensile properties of the composites during direct rolling were investigated. The results show that increasing of the rolling deformation contributes to the refinement of primary α phase (αp) and the improvement of the distribution uniformity of TiBw and TiCp. Furthermore, both the tensile strength and elongation are significantly enhanced with increasing of the rolling deformation. As the rolling reduction reaches 85%, the 2.5 vol% (TiBw+TiCp)/Ti composites exhibit an excellent balance of strength and elongation to failure both at RT and 600 °C, which is mainly attributed to the microstructure refinement and the load-sharing effect of TiBw and TiCp. Fracture analysis shows that the fracture TiBw and TiCp followed by the ductile failure of the matrix is the failure mechanism of the composites both at RT and 600 °C.

46 citations

Journal ArticleDOI
TL;DR: In this article, a single-phase TiZrHfNbTaMox (x = 0.25, 0.5, and 0.75) refractory high entropy alloys (RHEAs) were investigated.

38 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, a review of the recent developments in the fabrication techniques and properties characterization of Al, Mg, Ti, Cu, Fe/steel and Ni matrix composites containing hybrid reinforcements is presented.

94 citations

Journal ArticleDOI
TL;DR: In this paper, in-situ TiC/Ti titanium matrix composites were successfully fabricated through a novel approach, utilizing the reaction of graphene and Ti mixture powders in spark plasma sintering.
Abstract: In-situ TiC/Ti titanium matrix composites were successfully fabricated through a novel approach, utilizing the reaction of graphene and Ti mixture powders in spark plasma sintering. Microstructure, hardness and compressive properties of such composites were investigated. The layered graphene nanosheets as the carbon source were dispersed in the powders, and subsequently formed uniform TiC particles in Ti matrix during the rapid sintering. The resulting TiC particles exhibited the micro- and nano-sized equiaxial structures. Such composites possessed the significantly enhanced hardness and room-temperature compressive strength comparing with the as-cast and as-sintered pure Ti. The ultimate and yield compressive strengths of as-prepared 7.0 vol% TiC incorporated composite respectively reached up to 2.64 GPa and 1.93 GPa, beyond some advanced Ti materials reported to date. In-situ micro- and nano-sized TiC particles were believed to be beneficial to harden and strengthen Ti matrix. The relevant strengthening mechanisms of such composites were discussed.

92 citations

Journal ArticleDOI
TL;DR: In this article, an intermetallic Ti-22Al-25Nb has been successfully fabricated by selective laser melting (SLM) and the as-printed samples show a high room-temperature ultimate tensile strength ∼1090 MPa and excellent ductility ∼22.7%.

87 citations

Journal ArticleDOI
TL;DR: In this article, the authors present a concise and systematic review of the recrystallization in emerging materials with a view to reconcile its manifestations with trends established from recrylistization studies in traditional alloys.

86 citations

Journal ArticleDOI
TL;DR: In this article, the high-temperature flow behavior of 6A02 aluminum alloy was studied through hot compressive experiments and the results showed that flow stress grows with increases in the strain rate and with decreases in the deformation temperature.

79 citations