International Journal of Plasticity最新文献

{"title":"Elucidating the role of combined latent hardening due to slip-slip and slip-twin interaction for modeling the evolution of crystallographic texture in high nitrogen steels","authors":"Bhanu Pratap Singh, Jyoti Ranjan Sahoo, Sumeet Mishra","doi":"10.1016/j.ijplas.2024.104215","DOIUrl":"https://doi.org/10.1016/j.ijplas.2024.104215","url":null,"abstract":"A thorough framework for addressing the evolution of crystallographic texture in high nitrogen steels is developed in the present work. The elementary doctrine of the proposed framework is the inclusion of latent hardening due to slip-slip interaction along with slip-twin interaction in the visco-plastic self-consistent (VPSC) model for simulating the evolution of crystallographic texture in high nitrogen steels. The latent hardening due to slip-slip interaction is accounted for by specifying the complete interaction matrix (12 × 12), which allows all possible interactions between different slip systems. The latent hardening due to slip-slip interaction acts in combination with the latent hardening due to slip-twin interaction in raising the deformation resistance of the slip systems, which in turn enhances the propensity of twinning for the orientations along the β-fiber between the ideal Copper and S position. As a result, these β-fiber orientations are destabilized and reorient towards the <span><span style=\"\"></span><span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mi is=\"true\"&gt;&amp;#x3B1;&lt;/mi&gt;&lt;/math&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"1.394ex\" role=\"img\" style=\"vertical-align: -0.235ex;\" viewbox=\"0 -498.8 640.5 600.2\" width=\"1.488ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"><g is=\"true\"><use xlink:href=\"#MJMATHI-3B1\"></use></g></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi is=\"true\">α</mi></math></span></span><script type=\"math/mml\"><math><mi is=\"true\">α</mi></math></script></span>-fiber orientations in the Euler space. The proposed modeling framework is validated against experimental orientation distribution function sections after different rolling reductions. It was observed that inclusion of the combined latent hardening effect provides a superior agreement with the experimental textures compared to the standard approach of considering only the latent hardening due to slip-twin interaction in low stacking fault energy materials. The modeling work is aptly supported by detailed microstructural characterization involving estimation of twin fraction via X-ray line profile analysis, twin characteristics via transmission electron microscopy and the reorientation caused due to twinning via electron back scatter diffraction.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"113 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantitative comparison between experiments and crystal plasticity simulations using microstructural clones","authors":"Hojun Lim, Kaitlynn M. Fitzgerald, Timothy J. Ruggles, William G. Gilliland, Nicole K. Aragon, Jay D. Carroll","doi":"10.1016/j.ijplas.2024.104186","DOIUrl":"https://doi.org/10.1016/j.ijplas.2024.104186","url":null,"abstract":"Crystal plasticity finite element (CP-FE) models are now extensively employed to investigate grain-scale deformation in crystalline materials. The fidelity of the model is derived from verification against experimental data; however, it is challenging to quantitatively compare regions of interest across different length scales using various experimental techniques. In this work, we compare CP-FE predictions of local and global mechanical responses to “Microstructural Clones” data, comprising multiple experimental datasets from microscopically identical quasi-2D crystal specimens. These multi-crystal specimens exhibit nearly identical grain morphologies, grain orientations, grain boundary characteristics, and similar dislocation arrangements. Such specimens enable multiple <em>in-situ</em> and <em>ex-situ</em> experiments on nominally identical samples, allowing for the control of several variables and the exploration of the impact of a single variable in a more scientifically rigorous manner. We use these clone experiments to compare texture evolution, surface strain fields, and failure behavior with CP-FE predictions. This procedure provides an objective and quantitative methodology to evaluate the agreement between the model and experimental data, and allows for the testing of various model parameters to improve the CP-FE model.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"11 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-element Segregation Strengthening and Doping Softening of S5 (210) [001] Symmetrically Tilted Grain Boundary in Ni-based Bicrystal","authors":"Hao Hu, Tao Fu, Shiyi Wang, Chuanying Li, Shayuan Weng, Deqiang Yin, Xianghe Peng","doi":"10.1016/j.ijplas.2024.104219","DOIUrl":"https://doi.org/10.1016/j.ijplas.2024.104219","url":null,"abstract":"Alloying is an economically efficient strategy to improve the thermal and mechanical stability of materials, which can also be applied to grain boundary (GB) in nanocrystalline materials to improve their mechanical properties. In this work, we investigated the mechanical properties and plastic deformation of bicrystal Ni samples with/without doping and segregation of multi-element (ME) atoms (including Co, Cr, Fe, and Mn atoms) using molecular dynamics (MD) simulations and Monte Carlo (MC) calculations at various temperatures. Each sample contains a Σ5 (210) [001] symmetric tilted GB. It was found that ME doping results in partial GB migration and softening, while ME segregation hinders GB migration, leading to strengthening. The softening and strengthening stem respectively from the distribution of ME atoms in the non-coincident site lattice (non-CSL) and in the coincident site lattice (CSL) sites. Furthermore, temperature affects the GB migration in ME-doped and ME-segregated samples through the compatibility of the ME atoms in GB. The results presented may contribute to understanding the mechanisms of strengthening and softening caused by ME doping and segregation at the atomic scale, and provide a perspective on the balance between strength and ductility.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"39 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Graph Neural Network Unveils the Spatiotemporal Evolution of Structural Defects in Sheared Granular Materials","authors":"Jiangzhou Mei, Gang Ma, Wanda Cao, Ting Wu, Wei Zhou","doi":"10.1016/j.ijplas.2024.104218","DOIUrl":"https://doi.org/10.1016/j.ijplas.2024.104218","url":null,"abstract":"The disordered nature of granular materials poses great difficulty to the accurate characterization of microscopic structures. Despite numerous handcrafted structural indicators, the relationship between particle-scale structure and dynamics, as well as the structural origins of complex constitutive behaviors, remain subjects of debate. In this paper, we utilize a Graph Convolutional Neural Network (GCNN) to establish the structure-property relationship within granular materials. The GCNN model effectively identifies active particles exhibiting intense nonaffine activities based solely on initial particle positions, without relying on handcrafted features. Additionally, we derive a structural indicator called susceptibility from the GCNN output, which quantifies the fragility of local structures to external stimuli and enables the characterization of structural evolution during the shearing process. We demonstrate that structural defects with high susceptibility tend to form spatial clusters, and the distinct failure modes in dense and loose granular assemblies are driven by the differing spatiotemporal evolution of these defect clusters. Our findings suggest that the structural origin of macroscopic yielding in dense granular materials lies in the formation of system-spanning defect clusters, which facilitates the percolation of high-mobility zones and the development of shear bands. Finally, our study indicates that graph-based neural networks are well-suited for modeling and predicting the complex behaviors of granular materials, providing a powerful approach to uncovering underlying mechanisms and deepening our understanding of these materials.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"104 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Breaking the strength-ductility trade-off in aluminum matrix composite through \"dual-metal\" heterogeneous structure and interface control","authors":"Yanzhi Peng, Caiju Li, Min Song, Zunyan Xu, Chenmaoyue Yang, Qiong Lu, Liang Liu, Xiaofeng Chen, Yichun Liu, Jianhong Yi","doi":"10.1016/j.ijplas.2024.104216","DOIUrl":"https://doi.org/10.1016/j.ijplas.2024.104216","url":null,"abstract":"Heterogeneous microstructure design has been a prevalent strategy for breaking the strength-ductility dilemma in structural materials. However, it is still difficult to achieve customizable heterogeneous microstructures. Here, we employ a simple powder metallurgy method to construct \"dual-metal\" heterogeneous structure in aluminum matrix composite (AMC) by introducing hard high-entropy alloy particles into the soft aluminum matrix. By using mutual diffusion and self-organization strategies, reinforcements with special core-shell structures were synthesized in situ, forming multi-level heterogeneous structures within the composites. The results show that the heterogeneity of the microstructure plays an effective role in regulating the strain gradient and maintaining significant strain hardening ability during plastic deformation. In addition, the nanograin layer of the core-shell reinforcement outer shell possesses good toughness and stress-bearing capacity, enabling it to accommodate deformation and inhibit crack propagation effectively. This study provides a feasible method for designing AMCs with heterogeneous structures and contributes a conceptual framework for designing strong and ductile metal matrix composites.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"29 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A multi-physics model for the evolution of grain microstructure","authors":"I.T. Tandogan, M. Budnitzki, S. Sandfeld","doi":"10.1016/j.ijplas.2024.104201","DOIUrl":"https://doi.org/10.1016/j.ijplas.2024.104201","url":null,"abstract":"When a metal is loaded mechanically at elevated temperatures, its grain microstructure evolves due to multiple physical mechanisms. Two of which are the curvature-driven migration of the grain boundaries due to increased mobility, and the formation of subgrains due to severe plastic deformation. Similar phenomena are observed during heat treatment subsequent to severe plastic deformation. Grain boundary migration and plastic deformation simultaneously change the lattice orientation at any given material point, which is challenging to simulate consistently. The majority of existing simulation approaches tackle this problem by applying separate, specialized models for mechanical deformation and grain boundary migration sequentially. Significant progress was made recognizing that the Cosserat continuum represents an ideal framework for the coupling between different mechanisms causing lattice reorientation, since rotations are native degrees of freedom in this setting.In this work we propose and implement a multi-physics model, which couples Cosserat crystal plasticity to Henry-Mellenthin-Plapp (HMP) type orientation phase-field in a single thermodynamically consistent framework for microstructure evolution. Compared to models based on the Kobayashi-Warren-Carter (KWC) phase-field, the HMP formulation removes the nonphysical term linear in the gradient of orientation from the free energy density, thus eliminating long-range interactions between grain boundaries. Further, HMP orientation phase field can handle inclination-dependent grain boundary energies. We evaluate the model’s predictions and numerical performance within a two-dimensional finite element framework, and compare it to a previously published results based on KWC phase-field coupled with Cosserat mechanics.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"21 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142832096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the Effect of Cementite Distribution on the Deformation Behavior of Pearlitic Steel Wires under Micropillar Compression: A Strain-Gradient Crystal Plasticity Approach","authors":"Abhishek Kumar Singh, Ki-Seong Park, Saurabh Pawar, Dahye Shin, Dongchan Jang, Shi-Hoon Choi","doi":"10.1016/j.ijplas.2024.104214","DOIUrl":"https://doi.org/10.1016/j.ijplas.2024.104214","url":null,"abstract":"This study examines the deformation mechanisms in cold-drawn pearlitic steel wires using micropillar compression tests. Scanning electron microscopy (SEM) identified five distinct regions characterized by varying cementite distributions, and nanoindentation tests were subsequently performed in these areas. Additionally, five micropillars were fabricated within these regions using focused ion beam (FIB) techniques. The micropillar compression results reveal a pronounced correlation between the mechanical behavior of micropillars and various microstructural parameters, including the cementite inclination angle (CIA), interlamellar spacing, and ferrite-cementite distribution. Furthermore, strain gradient crystal plasticity finite element analysis (SG-CPFEM) revealed a significant increase in geometrically necessary dislocations (GNDs) at the ferrite-cementite interfaces, which critically influences the effective slip resistance. The simulations also indicated that the presence of a ferrite-cementite interface significantly elevates GND concentrations, impacting the load-displacement behavior. Micropillars with cementite normal to the loading direction showed higher increases in GNDs, while reduced cementite spacings were found to amplify GND formation due to increased strain gradients in the ferrite phase. A shear fracture were predominant in pillars with CIA of 67.5º or higher, while kink band formations were observed in pillars with CIA of 22.5º or lower. The increase in GNDs is influenced by both the CIA and interlamellar spacing, highlighting their critical roles in determining mechanical properties.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"30 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intrinsic characteristics of grain boundary elimination induced by plastic deformation in front of intergranular microcracks in bcc iron","authors":"Zhifu Zhao, Yueguang Wei","doi":"10.1016/j.ijplas.2024.104208","DOIUrl":"https://doi.org/10.1016/j.ijplas.2024.104208","url":null,"abstract":"Additive grain boundary (GB) engineering holds significant potential for developing materials and structures with excellent mechanical properties by precisely controlling GB structure. The GBs that can be eliminated by plastic behavior activities prior to crack cleavage are ideal special ones for resisting intergranular fracture. Through molecular dynamics simulation, this work constructs special boundaries and studies the intrinsic characteristics of GB elimination. The results show that GB elimination phenomenon significantly depends on crack growth direction and GB plane. The classical theory developed by Rice fails to identify the mechanisms of two dependent characteristics. According to shear forces on atoms at crack tip, this work finds that the dependence of GB elimination on crack growth direction is attributed to the change of atomic slip characteristics. GB elimination occurs in specific growth directions where atomic slip is driven by the system of <span><math><mrow is=\"true\"><mrow is=\"true\"><mo is=\"true\">(</mo><mn is=\"true\">1</mn><mover accent=\"true\" is=\"true\"><mn is=\"true\">1</mn><mo is=\"true\">¯</mo></mover><mn is=\"true\">2</mn><mo is=\"true\">)</mo></mrow><mrow is=\"true\"><mo is=\"true\">[</mo><mover accent=\"true\" is=\"true\"><mn is=\"true\">1</mn><mo is=\"true\">¯</mo></mover><mn is=\"true\">11</mn><mo is=\"true\">]</mo></mrow></mrow></math></span>. By considering <em>T</em> stress effect, GB elimination and its dependence on GB plane are well explained. The dependence of GB elimination on GB plane is attributed to the complex changes in critical stress intensity factors for twinning formation, perfect dislocation nucleation, and cleavage. GB elimination occurs on specific GBs where <em>T</em> stress makes the critical stress intensity factors for twinning and dislocation nucleation significantly lower than that for cleavage. The identified intrinsic characteristics of GB elimination provide references for GB design.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"64 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated modeling framework for the interactions of plastic deformation, magnetic fields, and electrical circuits: Theory and applications to physics-informed real-time material monitoring","authors":"Young-Dae Shim, Changhyeon Kim, Jihun Kim, Dae-Hyun Yoon, WooHo Yang, Eun-Ho Lee","doi":"10.1016/j.ijplas.2024.104212","DOIUrl":"https://doi.org/10.1016/j.ijplas.2024.104212","url":null,"abstract":"This study aims to develop a thermodynamic modeling framework for the electromagnetic-plastic deformation response coupled with circuit analysis. To accomplish this objective, we derived the thermodynamic balance laws for materials exposed to electromagnetic fields while undergoing plastic deformation. The balance laws serve as the foundation for refining the connection between the plastic deformation and electrical conductivity of materials. This study also modeled the relationship between dislocation density and Matthiessen's rule. The constitutive equations were subsequently implemented into a crystal plasticity model, thereby calibrating and validating the model. The derived modeling framework considers the 1^st and 2^nd laws of thermodynamics. The model was then transformed into a circuit model for a monitoring system by formulating equations to analyze the changes in material impedance resulting from the evolution of plastic deformation. This lays the groundwork for creating a monitoring system featuring a real-time prediction algorithm designed to assess material properties during manufacturing processes, thereby enhancing quality control and productivity. This monitoring system is used to monitor all materials in production lines of factories, where full-field measurement methods have limitations. Numerical simulations and experiments were conducted to validate the model and system performance. The results of these validation tests demonstrate that the model not only accurately predicts the relationship between electromagnetic fields and plastic deformation at the material level but also provides practical applicability within the realm of circuit theory, thus making it suitable for real-world system implementation.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"18 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Promoting strength–ductility synergy by mitigating heterogeneity in precipitation-strengthened FCC/B2 dual-phase high-entropy alloy","authors":"Yuhao Jia, Qingfeng Wu, Feng He, Zhongsheng Yang, Linxiang Liu, Xin Liu, Xiaoyu Bai, Bojing Guo, Hyoung Seop Kim, Junjie Li, Jincheng Wang, Zhijun Wang","doi":"10.1016/j.ijplas.2024.104213","DOIUrl":"https://doi.org/10.1016/j.ijplas.2024.104213","url":null,"abstract":"This study introduces a novel heterogeneity-mitigating strategy to enhance the strength-ductility synergy in precipitation-strengthened FCC/B2 dual-phase high-entropy alloys (DP-HEAs), addressing the challenge of strain localization and interfacial cracking between phases. While traditional FCC/B2 DP-HEAs benefit from heterogeneous deformation-induced effects, increased strength in precipitation-strengthened FCC/B2 DP-HEAs often leads to premature failure due to strain localization. Traditional approaches, such as microstructure refinement and morphological regulation, often fall short, especially in alloys with significant phase volume fraction differences and precipitation. By employing precise microstructural regulation, the heterogeneity-mitigating strategy achieves a <u>twofold increase in ductility</u> and a <u>significant enhancement in strength</u>. The micro-digital image correlation technique elucidates the role of dual-phase heterogeneity in interfacial strain partitioning, while nanoindentation and simulations reveal the intrinsic link between reduced heterogeneity and improved deformation compatibility. This approach overcomes the limitations of existing methods, offering a new pathway for the synergistic enhancement of strength and ductility in precipitation-strengthened FCC/B2 DP-HEAs with differing phase properties and volume fractions.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"1 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}