Effect of microstructural heterogeneity on corrosion fatigue crack growth behavior of 60-mm thick-plate TC4 titanium alloy NG-GTAW welded joint

Yang, Tianzu; Xiao, Youheng; Yuan, Zhong; Liu, Jianyu; Li, Huanyu; Wang, Yuan

doi:10.1016/j.ijfatigue.2022.107030

Cited by 16 publications

(3 citation statements)

References 42 publications

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“…Figure 12 shows the (0001), (11)(12)(13)(14)(15)(16)(17)(18)(19)(20), and (10-10) pole figures of both S1 and S2, respectively. The maximum intensity level (m.r.u.)…”

Section: Crystallographic Orientation Distributionmentioning

confidence: 99%

“…Welding is the most common method of connecting titanium alloys used as shells and structural components of ships. [ 19 ] The mechanical heterogeneity of the welded base metal across its thickness will reduce the hardness and residual fatigue life of the welded joint. It significantly affects the reliability and corrosion resistance of the structures.…”

Section: Introductionmentioning

confidence: 99%

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The Differences in Microstructure, Microtexture, and Tensile Anisotropy of Ti80 Heavy Plate Across the Thickness

2023

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“…Figure 12 shows the (0001), (11)(12)(13)(14)(15)(16)(17)(18)(19)(20), and (10-10) pole figures of both S1 and S2, respectively. The maximum intensity level (m.r.u.)…”

Section: Crystallographic Orientation Distributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Differences in Microstructure, Microtexture, and Tensile Anisotropy of Ti80 Heavy Plate Across the Thickness

2023

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“…Hence, the transition behavior is correlated to certain microstructural sizes. Using Equation (3) [23], the cyclic plastic zone at the transition point can be calculated.…”

Section: Fatigue Crack Propagation Behaviormentioning

confidence: 99%

Influence of Microstructure on Tensile Properties and Fatigue Crack Propagation Behavior for Lath Martensitic Steel

Deng,

Liang,

Zhao

et al. 2023

Crystals

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This paper addresses the role of multilevel microstructures on the fatigue crack propagation behavior and the tensile properties of lath martensite with different substructure sizes. Microstructure characterization of the alloy was carried out by transmission electron microscopy (TEM), scanning electron microscopy (SEM), electron back-scattering diffraction (EBSD), and optical microscopy (OM). Based on the classic Hall–Petch relationship, the results of tensile tests showed that martensitic block is the effective control unit of yield strength. Furthermore, the plasticity of lath martensite is not sensitive to grain size. The tensile deformation mechanisms were also discussed. Fatigue crack propagation tests revealed that the coarse grain has a higher crack propagation threshold and lower crack propagation rate than the fine grain in lath martensitic steel. The change in the plasticity zone ahead of the crack tip leads to the transitional behavior of the fatigue crack propagation rate. When plasticity zone sizes are equal to the block size, the fatigue crack propagation reverts to a stable propagation stage. Finally, an empirical model was established to predict the fatigue crack propagation rate of the stable propagation stage based on the tensile properties of the lath martensitic steel.

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Influence of High-Temperature Annealing on Microstructure and Properties of Welded Joints Using Narrow Gap Laser Welding of TC4 Titanium with Welding Wire

Wang,

Wu,

et al. 2023

J. of Materi Eng and Perform

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Effect of microstructural heterogeneity on corrosion fatigue crack growth behavior of 60-mm thick-plate TC4 titanium alloy NG-GTAW welded joint

Cited by 16 publications

References 42 publications

The Differences in Microstructure, Microtexture, and Tensile Anisotropy of Ti80 Heavy Plate Across the Thickness

The Differences in Microstructure, Microtexture, and Tensile Anisotropy of Ti80 Heavy Plate Across the Thickness

Influence of Microstructure on Tensile Properties and Fatigue Crack Propagation Behavior for Lath Martensitic Steel

Influence of High-Temperature Annealing on Microstructure and Properties of Welded Joints Using Narrow Gap Laser Welding of TC4 Titanium with Welding Wire

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