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CROSS SCALE ANALYSIS FOR THE EFFECT OF PROCESS PARAMETERS ON THE GRAIN SIZE OF COLD ROLLING SPLINE
Published 2021-01-01“…Multi field and cross scale analysis is helpful to improve the forming quality and analyze the evolution law of microstructure in the process of spline forming, which has a very important guiding significance for process optimization, quality prediction and control. …”
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1625
Boosting the durability of RuO2 via confinement effect for proton exchange membrane water electrolyzer
Published 2025-01-01Get full text
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1626
STUDY ON CRACK INITIATION AT GRAIN BOUNDARY OF Cu⁃Ni⁃Si ALLOY BASED ON CRYSTAL PLASTICITY AND COHESIVE ZONE MODEL
Published 2024-10-01“…The macroscopic failure behavior of metal materials is closely related to the damage evolution of microstructure.In addition to in⁃situ loading experiments,advanced numerical methods are used to simulate and predict the microstructure evolution of metal materials,which has gradually become an effective tool to study the multi⁃scale damage evolution mechanism of metal materials.At present,the dislocation motion inside polycrystalline metal grains can be simulated by crystal plastic finite element method,but there are still challenges in the simulation of damage accumulation and microcrack initiation caused by dislocation.For most metal polycrystalline materials,dislocations are usually plugged at grain boundaries leading to stress concentration and then cracking at grain boundaries.Therefore,the simulation of the whole process requires the construction of a numerical model that can describe both dislocation motion and grain boundary cracking.In order to solve this problem,combining the crystal plastic finite element model with the cohesive zone model to achieve a uniform description of material microscopic deformation and damage,and a global finite element model to describe dislocation motion and grain boundary cracking was established.Then,taking polycrystalline Cu⁃Ni⁃Si alloy as the research object,the microstructure evolution process from deformation,crack initiation,crack propagation to fracture was simulated,and the mechanism from local intergranular fracture to global failure was revealed,and the effect of grain orientation on initial fracture location and crack propagation was clarified.This model provides a feasible methodology for multi⁃scale damage evolution simulation of the failure behavior of various metal materials.…”
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1627
Intragranular ferrite morphologies in medium carbon vanadium-microalloyed steel
Published 2013-01-01“…These treatments were interrupted at different times in order to analyze the evolution of the microstructure. Metallographic evaluation was done using optical and scanning electron microscopy (SEM). …”
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1628
A multiscale crystal plasticity-multistage fatigue coupling framework for prediction of low-cycle fatigue life in laser additively manufactured titanium alloy
Published 2025-12-01“…Existing aerospace fatigue life models inadequately predict high-strain cycle failures in TC11 titanium alloys due to overlooked dynamic microstructural evolution and multiscale damage, undermining critical airframe safety assessments. …”
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1629
Study on Grain Refinement Mechanism of Internal Spline Tooth Profile by Vibration Assisted Cold Extrusion
Published 2021-05-01“…In order to study the microstructure evolution of the formed parts in the axial vibration cold extrusion process, the microstructure evolution process of the blank in the axial cold extrusion process is simulated by using the cellular automata method. …”
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1630
Interactions between dynamic recrystallization and dynamic precipitation during hot forming of magnesium alloy: Multilevel cellular automaton modeling
Published 2025-05-01“…This study establishes a multilevel cellular automaton (CA) model to predict the microstructure evolution of wrought magnesium alloys undergoing both dynamic recrystallization (DRX) and dynamic precipitation (DP), surpassing the capabilities of traditional DRX models. …”
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1631
Research on Interfacial Bonding Property of Modified Fiber Reinforced Concrete and Present Situation Analysis
Published 2022-01-01“…The hydration evolution process,microstructure,and modification mechanism of the matrix in concrete under multi-mineral and polymer hybrid modification need to be studied immediately.Optimal modification methods for different fibers should be proposed according to economical efficiency,construction technology,and modification effect.…”
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1632
Uniting high strength with large ductility in an additively manufactured fine-grained aluminum alloy
Published 2025-04-01Get full text
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1633
Study on the Microscopic Pore Characteristics and Mechanisms of Disturbance Damage in Zhanjiang Formation Structural Clay
Published 2024-11-01“…Based on the evolution characteristics of the microstructure, the microscopic pore characteristics of the disturbance damage of Zhanjiang Formation structural clay were examined. …”
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1634
A lattice Boltzmann model with sharp interface tracking for the motion and growth of dendrites in non-equilibrium solidification of alloys
Published 2024-10-01“…Moreover, the segregation and microstructure evolution during the rapid solidification were studied. …”
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Corrosion Crack Nucleation Mechanism in the Welded Structures of X65 Steel in Natural Seawater
Published 2018-01-01“…The results show that the main factors of determining surface corrosion morphology evolution law of welded structures are microstructures of the weld joint, heat-affected zone (HAZ), and the fusion line. …”
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A physically-based constitutive model considering mixed dynamic recrystallization for a near-α titanium alloy during hot deformation
Published 2025-03-01“…The mixed dynamic recrystallization of titanium alloys during hot deformation is rarely described in the existing microstructure evolution models and constitutive models. …”
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HPC atomic simulations of defect formation and kinetic Monte Carlo simulation of material ageing
Published 2024-01-01“…Kinetic Monte Carlo (KMC) simulations are developed to simulate microstructure evolution under irradiation of structural materials of nuclear power plants. …”
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SPECIFIC DEGRADATION STRUCTURE FEATURES AND MECHANICAL PROPERTIES OF FURNACE AND HEAT POWER EQUIPMENT ELEMENTS AFTER LONG-TERM OPERATION
Published 2012-02-01“…A scale of chrome and molybdenum steel microstructure degradation based on evaluation of coagulated carbide size and material mechanical properties (a point from 0-operation without time limits, up to 4-operation prohibition) has been proposed in the paper. …”
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Cycle duration dependent hardness and β relaxation behavior of cryogenic-thermal-cycle treated metallic glasses
Published 2025-07-01“…Experimental results demonstrated that the CTC-frequency/single-cycling-duration indeed plays crucial roles in determining the microstructure evolution and mechanical/relaxation behavior of the MG. …”
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