Crystal plasticity study of printing-induced internal stress and dislocation structures in additively manufactured A7075 alloy
Source abstract
Abstract
The A7075 alloy produced by laser powder bed fusion (LPBF) typically develops large internal stresses. Nevertheless, how these stresses affect the mechanical behavior is still poorly understood. In this study, crystal plasticity (CP) modeling is employed to evaluate the effect of printing-induced internal stress and dislocation structures on the mechanical behavior of additively manufactured A7075 alloy subjected to uniaxial tension. The stress-relieved showed higher strength than as-printed A7075 material with different initial internal stresses and dislocation evolution parameters. These results reveal the significant impact of internal stress on lattice strain and dislocation density evolution on the {111} slip family, which affect the alloy's strength.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Microstructure and mechanical properties · Additive Manufacturing and 3D Printing Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (17)
Show source-provided references
1. A novel strategy to additively manufacture 7075 aluminium alloy with selective laser melting10.1016/j.msea.2021.141638 ↗
2. Evolution, control, and mitigation of residual stresses in additively manufactured metallic materials: a review10.1002/adem.202300489 ↗
3. Residual stress and distortion in arc-directed energy deposition: formation mechanisms, analysis techniques, and mitigation strategies10.1016/j.jmapro.2025.02.061 ↗
4. Rapid residual stress simulation and distortion mitigation in laser additive manufacturing through machine learning
5. Si-assisted solidification path and microstructure control of 7075 aluminum alloy with improved mechanical properties by selective laser melting10.1007/s40195-022-01419-1 ↗
6. Effect of TiO2 content on the arc-erosion resistance of Ag/SnO2 electrical contact materials prepared via mechanical alloying-assisted powder metallurgy
7. Tailored porosity in additive manufacturing of 7075 aluminum alloy for crack suppression and high strength10.1016/j.jmatprotec.2024.118620 ↗
8. Selective laser melting of 7075 aluminum alloy inoculated by Al–Ti–B: grain refinement and superior mechanical properties10.1016/j.vacuum.2022.111030 ↗
9. Effect of Y2O3 addition and milling time on the synthesis of nanocrystalline Ag–ZnO composite powder via mechanical alloying
10. Investigation of crack propagation behavior and life prediction model of aluminum alloy thick plate based on thickness effect10.1016/j.engfailanal.2025.109763 ↗
11. Modeling of microscale internal stresses in additively manufactured stainless steel10.1088/1361-651X/ac8698 ↗
12. Dispersion hardening using amorphous nanoparticles deployed via additive manufacturing10.1038/s41467-025-58893-1 ↗
13. Microscale residual stresses in additively manufactured stainless steel10.1038/s41467-019-12265-8 ↗
14. Effect of texture on the mechanical and micromechanical properties of a dual-phase titanium alloy10.1016/j.jmrt.2023.11.071 ↗
15. Effect of slip and twinning on texture evolution mechanisms in dual-phase titanium alloys10.1016/j.jmrt.2025.02.102 ↗
16. Fatigue crack initiation life prediction for aluminium alloy 7075 using crystal plasticity finite element simulations10.1016/j.mechmat.2014.11.004 ↗
17. Crack elimination and strength enhancement mechanisms of selective laser melted Si-modified Al− Mn− Mg− Er− Zr alloy10.1016/S1003-6326(24)66551-9 ↗