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61,005 resultsShowing papers similar to Research on the effect of micro-voids on the deformation behavior and crack initiation lifetime of titanium alloy under cyclic loading by crystal plasticity finite element method
ClearEffect of microvoids on microplasticity behavior of dual-phase titanium alloy under high cyclic loading (I): Crystal plasticity analysis
Researchers used crystal plasticity finite element modelling to investigate how microvoids influence microplasticity deformation in dual-phase titanium alloy under high cyclic loading. They found that geometrically necessary dislocations accumulate around microvoids, with void tip curvature having a greater effect on dislocation density than void size, and that increasing void size and curvature elevates cumulative shear strain across all phases.
Hierarchy of the macrozone features in Ti-6Al-4V alloy inferred from massive polycrystal plasticity calculations
Researchers used advanced crystal plasticity computer modeling to study how clusters of similarly-oriented grains — called macrozones — affect stress concentrations and fatigue performance in titanium alloys used in aerospace applications. The term "microplastic" here refers to early-stage metal deformation behavior (not environmental plastic pollution); results showed macrozone texture and shape strongly influence where stress hotspots form under cyclic loading.
Micro-Deformation and Fracture Features of Ti834 Titanium Alloy under Fatigue Loading
Researchers studied how titanium alloy responds to high-cycle fatigue loading versus dwell fatigue, identifying differences in deformation patterns at the microscale. Titanium alloys are used in environments where plastic corrosion byproducts can accelerate material degradation.
Effects of Crystallographic Texture on Subsurface Fatigue Crack Generation in Ti–Fe–O Alloy at Low Temperature
This study characterized subsurface fatigue cracks in a titanium alloy under cyclic loading, examining how crystallographic texture affects crack initiation and growth. The research is focused on materials engineering rather than environmental contamination.
Slip Irreversibility, Microplasticity, and Fatigue Cracking Mechanism in Near-α and α + β Titanium Alloys
This paper is not about microplastics; it reviews the materials-science mechanisms of microplasticity, slip irreversibility, and fatigue crack initiation in near-α and α+β titanium alloys—a topic in metallurgy unrelated to plastic pollution.
Enhanced Fatigue Strength of Commercially Pure Ti Processed by Rotary Swaging
This materials science study found that processing commercially pure titanium by rotary swaging to refine its grain structure significantly improved its fatigue strength and resistance to crack growth. The research is focused on metal alloy engineering with no relevance to microplastic pollution.
A Review of Damage, Void Evolution, and Fatigue Life Prediction Models
This engineering review summarizes models for predicting how damage, voids, and fatigue cause materials such as metals and composites to fail over time. This materials science paper is not related to microplastic environmental contamination.
The Effect of Initial Annealing Microstructures on the Forming Characteristics of Ti–4Al–2V Titanium Alloy
This materials science study investigated how pre-treatment processes affect the plastic forming behavior of a titanium alloy used in aerospace applications. It is an engineering paper unrelated to environmental microplastics.
Analysis of fatigue crack initiation in cyclic microplasticity regime
This engineering study analyzed how fatigue cracks begin in metals under cyclic loading, focusing on microscale stress and material defects. It is a materials science paper not related to environmental microplastics.
Fracture of aircraft titanium alloys under high-frequency loading
Researchers studied how titanium alloy components from aircraft engines fail under high-frequency vibration and found that cracks tend to start below the metal surface rather than at it, identifying specific microstructural features that trigger failure and suggesting that damping layers could help extend component lifespan.
Investigation of microplastic deformation mechanisms in TA2 metallic bipolar plates using a crystal plasticity model coupling slip and twinning
This paper is not about environmental microplastics — it uses 'microplastic' in the materials science sense to describe tiny deformation zones within titanium metal sheets used for hydrogen fuel cell components, studying how these microscale plastic deformations affect metal forming during manufacturing.
Hot Deformation Behavior and Processing Maps of a New Ti-6Al-2Nb-2Zr-0.4B Titanium Alloy
This materials science study characterized the high-temperature deformation behavior of a new titanium alloy used in aerospace and industrial applications. It has no direct relevance to microplastic or environmental health research.
Fatigue Damage Evaluation of Aviation Aluminum Alloy Based on Strain Monitoring
Researchers developed a metal fatigue damage model for aerospace aluminum alloy using real-time strain monitoring combined with crystal plasticity finite element analysis, establishing a constitutive relationship between strain and damage prior to microcrack initiation. Electron backscatter diffraction analysis validated the model's accuracy in predicting fatigue damage states under various stress conditions.
Crack nucleation using combined crystal plasticity modelling, high-resolution digital image correlation and high-resolution electron backscatter diffraction in a superalloy containing non-metallic inclusions under fatigue
This materials engineering study combined crystal plasticity modeling with high-resolution microscopy to understand how fatigue cracks form near non-metallic inclusions in nickel superalloys. The research addresses durability of industrial alloy components and is not related to microplastics research.
On the effect of microplasticity on crack initiation from subsurface defects in rolling contact fatigue
Researchers used 3D elasto-plastic finite element modeling to numerically demonstrate how microplasticity — yielding behavior below the conventional 0.2% plastic strain threshold — can initiate cracks at subsurface voids in bearing steel under rolling contact fatigue loading. The study compared nonlinear kinematic hardening versus sharp plasticity onset models, showing that smoother onset produces distinctly different patterns of plastic strain and micro-residual stress accumulation around defects.
Fatigue properties of a metastable β-type titanium alloy with reversible phase transformation
Researchers investigated the mechanical and fatigue properties of a nickel-free beta-titanium alloy (Ti-24Nb-4Zr-7.6Sn), finding that stress-induced martensitic transformation suppresses microplastic deformation and improves low-cycle fatigue strength, while cold rolling increases fatigue endurance by roughly 50% — relevant to biomedical implant design.
Enhancement of the Microstructure and Fatigue Crack Growth Performance of Additive Manufactured Titanium Alloy Parts by Laser-Assisted Ultrasonic Vibration Processing
This paper is not about microplastics. It studied how laser-assisted ultrasonic surface treatment improves the fatigue crack resistance and microstructure of 3D-printed titanium alloy parts. The term 'plastic deformation' here refers to metal deformation processes, not plastic pollution.
Effects of Pore Morphology and Bone Ingrowth on Mechanical Properties of Microporous Titanium as an Orthopaedic Implant Material
This biomedical engineering study examined how pore size, shape, and bone ingrowth affect the mechanical properties of porous titanium used in orthopedic implants, using both experimental testing and computer simulations. This is a biomedical engineering study with no direct relevance to environmental microplastics.
Estimating fatigue sensitivity to polycrystalline Ni‐base superalloy microstructures using a computational approach
This computational study examined how microstructural features of a nickel superalloy affect fatigue crack formation and small crack growth, aiming to predict fatigue life variability. This aerospace materials engineering study has no connection to microplastics or environmental health.
An Approach for Predicting the Low-Cycle-Fatigue Crack Initiation Life of Ultrafine-Grained Aluminum Alloy Considering Inhomogeneous Deformation and Microscale Multiaxial Strain
A fatigue crack initiation life prediction model was developed for ultrafine-grained aluminum alloy by separately accounting for the crack nucleation and small crack propagation stages using grain-scale deformation parameters. The model distinguished between inhomogeneous deformation and multiaxial strain as contributing factors. More accurate fatigue life predictions improve the safety and efficiency of lightweight metal structures.
A Study of Thermal Stability of Residual Stresses and Fatigue life of Laser Shock Peened Ti-6Al-2Sn-4Zr-2Mo alloy
This aerospace engineering study examined how laser shock peening—a process that introduces compressive stress into metal surfaces—affects the fatigue life and thermal stability of a titanium alloy used in high-temperature aerospace applications. This is a materials engineering study with no relevance to microplastic pollution.