D
Dazheng Zhang
Researcher at Northeastern University (China)
Publications - 24
Citations - 258
Dazheng Zhang is an academic researcher from Northeastern University (China). The author has contributed to research in topics: Microstructure & Ultimate tensile strength. The author has an hindex of 7, co-authored 19 publications receiving 105 citations. Previous affiliations of Dazheng Zhang include University of Science and Technology, Liaoning.
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Journal ArticleDOI
Intercritical tempering enables nanoscale austenite/ε-martensite formation in low-C medium-Mn steel: A pathway to control mechanical properties
Guanqiao Su,Xiuhua Gao,Ting Yan,Dazheng Zhang,Chenshuo Cui,Linxiu Du,Zhenguang Liu,Yan Tang,Jun Hu +8 more
TL;DR: In this paper, a hexagonal closed-packed phase (e-martensite) appeared on former reversed austenite by an air-cooled process, and the tensile strength of the tested steel increased from ~ 840 MPa after intercritical tempering at 650'°C for 50'min to ~'1002'MPa with the tempering temperature increased to 700'
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Microstructures and mechanical behavior of a near α titanium alloy prepared by TiH2-based powder metallurgy
TL;DR: In this paper, the microstructures and mechanical behavior of a powder metallurgy (PM) Ti-3Al-2Zr-2Mo marine titanium alloy were investigated.
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Cryogenic tensile properties and deformation behavior of a superhigh strength metastable beta titanium alloy Ti–15Mo–2Al
TL;DR: In this paper, the authors investigated the deformation behavior of a metastable β-Ti alloy Ti-15Mo-2Al and achieved superhigh ultimate tensile strength (UTS) of 1535 MPa at 77 K and 1725 MPA at 20 K. Because of the dynamic Hall-Patch effect induced by the extensive {332} twins formed during deformation and the strong back-stress strengthening at twin boundaries, the work hardening rate was significantly enhanced at 77K.
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Impact of Reversed Austenite on the Impact Toughness of the High-Strength Steel of Low Carbon Medium Manganese
TL;DR: In this article, the relationship between the volume fraction of austenite and the Charpy impact toughness in a medium-Mn steel in terms of microstructural evolution with impact temperature was elucidated.
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Effect of microstructure refinement on hydrogen-induced damage behavior of low alloy high strength steel for flexible riser
TL;DR: In this paper, the effect of different microstructures on hydrogen-induced damage behavior of low alloy high strength steel for flexible riser was studied by hydrogen permeation test and electrochemical hydrogen charging test.