Micro-mechanical behavior of lamellar structured Ti6Al4V alloy upon compression via experimental and crystal plasticity study

Wang, Jingjing; Naglingam, Arun Prasanth; Saini, Abhishek; Sun, Zeqing; Wang, Bing; Bi, Guijun

doi:10.1016/j.engfailanal.2023.107673

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2024

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Cited by 3 publications

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Comparative study on microstructure and properties of HR-2 anti-hydrogen steel weld joints with different section shapes by vacuum electron beam welding

Liu,

Zhao,

Han

et al. 2024

Journal of Materials Research and Technology

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Comparative study on microstructure and properties of HR-2 anti-hydrogen steel weld joints with different section shapes by vacuum electron beam welding

Liu,

Zhao,

Han

et al. 2024

Journal of Materials Research and Technology

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Gradient thickness-dependent distribution of residual stress and springback of thin-walled TC4 titanium alloy sheet with variable thickness in collaborative manufacturing process of pre-plastic forming and milling

SHU,

REN,

ZHANG

et al. 2024

Preprint

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Thin-walled sheet components with variable thickness and complex curved surface are expanding considerably in the advanced manufacturing field of aerospace industry due to its aerodynamic shape and light-weight characteristics, and collaborative manufacturing method of pre-plastic forming and milling was used to solve the problems of low rough milling efficiency and large milling difficult of such components. However, the structural characteristics of thin-walled and variable thickness brought the problems of residual stress and springback after pre-plastic forming, which impacted the milling quality and increased milling allowance in subsequent milling. In this work, based on three-point bending tests of thin-walled TC4 titanium alloy sheets with different ratio of thickness variation (ζ) and its Finite Element Analyze (FEA), gradient thickness-dependent distribution of residual stress and springback after pre-plastic forming was systematically studied. The results showed that with the ζ increasing from 1 to 6, difference of residual stress (Δσres) between both sides increased from 0 to 356.81 MPa, difference of springback (ΔS) between both sides increased 0 to 0.23 mm, and Springback Angle (SA) increased from 11.02 ° to 11.88 °, which was due to the increasing of stress component along the breadth direction and the decreasing of strain component along the thickness direction, and specimen #5 (ζ = 3) had more uniform distribution of residual stress. In addition, through considering the decay of elastic modulus (E) after plastic deformation, absolute error of SA of specimen #6 (ζ = 6) was reduced from 1.98 ° to 0.95 °.

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Investigating the Effect of Laser Parameters on Fracture Properties of Laser Repaired Cracks: Meso-Macro-Mechanical Analysis

Li,

Jiang

2024

Preprint

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Micro-mechanical behavior of lamellar structured Ti6Al4V alloy upon compression via experimental and crystal plasticity study

Cited by 3 publications

References 50 publications

Comparative study on microstructure and properties of HR-2 anti-hydrogen steel weld joints with different section shapes by vacuum electron beam welding

Comparative study on microstructure and properties of HR-2 anti-hydrogen steel weld joints with different section shapes by vacuum electron beam welding

Gradient thickness-dependent distribution of residual stress and springback of thin-walled TC4 titanium alloy sheet with variable thickness in collaborative manufacturing process of pre-plastic forming and milling

Investigating the Effect of Laser Parameters on Fracture Properties of Laser Repaired Cracks: Meso-Macro-Mechanical Analysis

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