☆ 4.7 Article

On the formation and growth of Mo-rich Laves phase particles during long-term creep of a 12% chromium tempered martensite ferritic steel

SCRIPTA MATERIALIA (2009)

获取全文
添加到收藏夹

期刊

SCRIPTA MATERIALIA
卷 61, 期 11, 页码 1068-1071

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2009.08.031

关键词

Creep; 12% Cr steels; Laves phase; Diffusion; Silicon

类别

Nanoscience & Nanotechnology Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering

资金

  1. ICAMS [STKS-11-01, LWW-14-01]

向作者/读者索取更多资源

Protocol

社区支持

Reagent

社区支持

It was recently reported (Aghajani et al. [1]) that Laves phase particles do not reach thermodynamic equilibrium as they form and grow during long-term creep (120 MPa, 823 K, 139 971 h) of a 12% chromium tempered martensite ferritic steel. In the present work we show that this is due to the slow diffusion of silicon in the steel matrix. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Materials Science, Multidisciplinary

A Novel Thermo-Mechanical Processing Route Exploiting Abnormal Grain Growth in Heusler-Type Co-Ni-Ga Shape Memory Alloys

C. Lauhoff, T. Pham, A. Paulsen, P. Krooss, J. Frenzel, G. Eggeler, T. Niendorf

Summary: Heusler-type Co-Ni-Ga shape memory alloys have attracted attention for their excellent superelasticity in the single-crystalline state. However, polycrystalline Co-Ni-Ga suffers from premature failure at grain boundaries due to pronounced anisotropy. The study introduces a novel thermo-mechanical processing route that promotes abnormal grain growth and leads to high-performance single-crystalline structures, offering potential for direct microstructure design.

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2022)

添加到收藏夹
Article Chemistry, Physical

Tracer diffusion under a concentration gradient: A pathway for a consistent development of mobility databases in multicomponent alloys

Daniel Gaertner, Julia Kundin, Neelamegan Esakkiraja, Jasper Berndt, Adeline Durand, Josua Kottke, Stephan Klemme, Guillaume Laplanche, Gunther Eggeler, Gerhard Wilde, Aloke Paul, Ingo Steinbach, Sergiy V. Divinski

Summary: Diffusion behavior in the CoCrFeMnNi high-entropy alloy is investigated using an augmented tracer/interdiffusion couple approach. A consistent composition-dependent diffusion database is established, and a pair-diffusion model is used to describe the tracer diffusion and chemical concentration profiles. The uphill diffusion of Co observed in the experiment cannot be explained by existing kinetic and thermodynamic databases, and the vacancy wind effect is found to have a strong influence on intrinsic cross diffusion coefficients.

JOURNAL OF ALLOYS AND COMPOUNDS (2023)

添加到收藏夹
Article Materials Science, Coatings & Films

On the sliding wear and solid particle erosion behaviour of HVOF-sprayed CoNiCrAlY coatings and NiCrCoTi substrates in dependence of the oxidation dwell time at 900 °C

Markus Kiryc, Deniz Kurumlu, Gunther Eggeler, Robert Vaben, Gabriela Marginean

Summary: This study focuses on the wear behavior of HVOF-sprayed CoNiCrAlY coatings deposited on a NiCrCoTi substrate at high temperatures. The microstructure and chemical composition of the coatings were found to significantly affect their sliding wear and solid particle erosion behavior. The formation of a thicker oxide scale on the substrate due to longer dwell times provided protective effects during sliding wear but did not benefit solid particle erosion protection.

SURFACE & COATINGS TECHNOLOGY (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Corrosion of NiTi stents induced by galvanic interaction with radiopaque materials

Elisa Kassab, Matthias Frotscher, Gunther Eggeler, Jose A. C. Ponciano Gome

Summary: Nickel titanium (NiTi) alloys are commonly used for biomedical devices and implants, but their low radiopacity is a limitation. Radiopaque markers made of noble materials are attached to NiTi stents to increase radiopacity, but concerns about galvanic corrosion arise. This research examines the galvanic interactions between NiTi alloys and NiTi stents coupled with radiopaque markers in simulated body fluid solution. The results show that the NiTi/Pt couple is the most susceptible to galvanic corrosion, while the NiTi/Pd and NiTi/Au couples are less affected. No significant increase in current density or pitting corrosion is observed in short-term measurements with NiTi stent/Pt, but long-term tests lead to severe localized corrosion, suggesting a risk of corrosion induced by coupling Pt markers to NiTi stents.

MATERIALS TODAY COMMUNICATIONS (2022)

添加到收藏夹
Article Materials Science, Multidisciplinary

Coherency loss marking the onset of degradation in high temperature creep of superalloys: Phase-field simulation coupled to strain gradient crystal plasticity

Muhammad Adil Ali, Oleg Shchyglo, Markus Stricker, Ingo Steinbach

Summary: A crystal plasticity-phase field model based on dislocation density is used to study directional coarsening during creep in CMSX-4 Ni-based superalloys under high temperature and low stress conditions. The loss of coherency between the y matrix and y' precipitates allows the generation of geometrically necessary dislocations, leading to lattice rotation and increased creep rate in the matrix. Simulations of N-type and P-type rafting under tensile and compressive load are performed to investigate the effects of coherency loss, precipitate coalescence, and lattice rotation on creep behavior, in correlation with experimental findings.

COMPUTATIONAL MATERIALS SCIENCE (2023)

添加到收藏夹
Article Chemistry, Physical

Investigation on the stability of raft structure in single crystal superalloy

L. Pang, Z. X. Zhang, L. W. Kong, Z. B. Xing, Y. Shu, P. Li, G. Eggeler

Summary: The thermal stability of CMSX-4 nickel-based single crystal superalloy with the raft structure is studied through macro-oxidation and in-situ oxidation experiments. The oxidation morphologies on the superalloy surface include thick oxide layers with NiO and Co2O3 in the dendrite core (region A) and thin oxide layers with Al2O3, Cr-O, and TiO in the interdendrite region (region B). The migration of elements during oxidation causes changes in thickness and stress concentration between the gamma and gamma' phases, leading to voids aggregation, crack initiation, and final failure fracture.

JOURNAL OF ALLOYS AND COMPOUNDS (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Phase-Field Study of the History-Effect of Remelted Microstructures on Nucleation During Additive Manufacturing of Ni-Based Superalloys

Murali Uddagiri, Oleg Shchyglo, Ingo Steinbach, Benjamin Wahlmann, Carolin Koerner

Summary: We use multi-phase-field simulations to study the effect of remelting on microstructure evolution, particularly on nucleation of new grains during SEBM of Ni-based super alloy. The phase-field model takes into account both mass and heat transport phenomena, including release of latent heat of solidification. Remelting simulations are conducted under both as cast and homogenized conditions. Experimental observations demonstrate that remelting triggers the nucleation of new grains at the melt pool border. The simulation results provide insights into the local conditions at the melt pool border, enhancing our understanding of the nucleation mechanisms. The simulation results are validated with experimental results obtained for the Ni-20.5 mol pct Al model binary alloy.

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

3D phase-field simulations to machine-learn 3D information from 2D micrographs

Yuxun Jiang, Muhammad Adil Ali, Irina Roslyakova, David Buerger, Gunther Eggeler, Ingo Steinbach

Summary: A novel approach is developed to retrieve 3D information from 2D experimental micrographs using 3D phase-field simulations and artificial intelligence. The simulations are validated to reproduce microstructural features and then used to generate simulated micrographs for training a regression model. The model is then applied to experimental micrographs to retrieve hidden 3D features. This approach is applicable to metallic materials, minerals or ceramics that can be quantitatively treated by phase-field simulations.

MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING (2023)

添加到收藏夹
Article Metallurgy & Metallurgical Engineering

Influence of Transformation Temperature on the High-Cycle Fatigue Performance of Carbide-Bearing and Carbide-Free Bainite

Oguz Gulbay, Marc Ackermann, Alexander Gramlich, Ali Riza Durmaz, Ingo Steinbach, Ulrich Krupp

Summary: This study investigates the high-cycle-fatigue (HCF) behavior of carbide-bearing bainite (CBB) and carbide-free bainite (CFB) fabricated at different transformation temperatures. The fatigue limit of each material is determined via staircase method using a 1 kHz resonant testing machine. A new load increase test is proposed as an efficient alternative to estimate the fatigue limit in HCF regimes. The assessment of the fatigue behavior is accompanied by data-driven microstructural analyses via state-of-the-art computer vision tools. The analyses reveal that the finer carbide distribution, obtained at lower transformation temperature, enhances the overall performance of CBB. Electron backscatter diffraction (EBSD) measurements illustrate the transformation of retained austenite (RA) to martensite during deformation in CFB. The finer film-like and stable RAs, promoted by reduction in transformation temperature, enhance the HCF properties by absorbing energy required for fatigue crack propagation through improved transformation-induced plasticity. However, blocky unstable RA and/or martensite-austenite (MA) islands at prior austenite grain boundaries deteriorate the HCF properties of high-temperature CFB. Furthermore, unindexed regions in EBSD maps are effectively used to differentiate the MA islands of CFB, as validated by scanning electron microscopy (SEM) images and deep learning-based MA island segmentation.

STEEL RESEARCH INTERNATIONAL (2023)

添加到收藏夹
Article Chemistry, Physical

Local Maxima in Martensite Start Temperatures in the Transition Region between Lath and Plate Martensite in Fe-Ni Alloys

Pascal Thome, Mike Schneider, Victoria A. Yardley, Eric J. Payton, Gunther Eggeler

Summary: In the binary Fe-Ni system, the martensite start temperatures decrease with an increase in Ni concentrations. Alloys with Ni concentrations below 28.5 at.% exhibit lath martensite microstructures, while plate martensite forms above this concentration. A combination of ingot metallurgy, thermal analysis, and analytical orientation imaging scanning electron microscopy was used to study the microstructures and crystallographic features. The formation of transition martensite, which exhibits characteristics of both lath and plate martensite, is associated with a local maximum in the descending M-S curve.

MATERIALS (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Numerical Simulations to Predict the Melt Pool Dynamics and Heat Transfer during Single-Track Laser Melting of Ni-Based Superalloy (CMSX-4)

Mohammad Reza Azadi Tinat, Murali Uddagiri, Ingo Steinbach, Inmaculada Lopez-Galilea

Summary: Computational Fluid Dynamics (CFD) simulations coupled with a Discrete Element Method (DEM) solver were used to study the dynamic behavior of the melt pool and heat transfer during the laser melting process of a nickel-based superalloy. The effects of powder inhomogeneities on the powder layer distribution were included in the CFD model. Key process parameters such as laser power, scanning speed, powder size, and powder shape were investigated for their effects on the size and homogeneity of the melt pool.

METALS (2023)

添加到收藏夹
Article Physics, Applied

Multi-phase field modeling and simulation of magnetically driven grain boundary migration in SmCo polycrystals

L. Huo, R. Schiedung, H. Li, G. Wang, Y. Hong, A. Gruenebohm, I Steinbach

Summary: There is a need to optimize the microstructure of magnetic materials used in wind turbines and electric motors, which depends on the microstructure evolution during sintering or heat treatment. Most simulation packages do not allow for simultaneous modeling of both the structural and magnetic degrees of freedom. Therefore, we extend an open-source software project to implement the necessary micromagnetic equations and apply it to field-assisted grain growth in Sm2Co17 polycrystal films.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2023)

添加到收藏夹
Article Physics, Multidisciplinary

Dendrite operating state in directional solidification of AlCu binary system: numerical benchmark test with the OpenPhase software

Murali Uddagiri, Pankaj Antala, Oleg Shchyglo, Ingo Steinbach

Summary: A scientific benchmark test is conducted for a multi-phase-field model with double-obstacle potential by performing three-dimensional simulations of dendritic growth under directional solidification. The study explores the effects of key numerical parameters on the dendrite tip operating state, discusses uncertainties in the choice of effective interface mobility, and adapts a sharp phase-field model to achieve better convergence with reduced computational cost.

PHYSICA SCRIPTA (2023)

添加到收藏夹
Article Nanoscience & Nanotechnology

High dielectric temperature stability in the relaxor ferroelectric thin films via using a multilayer heterostructure

Jie Zhang, Xiaoyang Chen, MingJian Ding, Jiaqiang Chen, Ping Yu

Summary: This study enhances the compositional inhomogeneity of relaxor ferroelectric thin films to improve their dielectric temperature stability. The prepared films exhibit a relatively high dielectric constant and a very low variation ratio of dielectric constant over a wide temperature range.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

A rational proton compensation strategy of polyaniline-MnO2 hybrid structure for promoting dual ion storage of Zn-ion battery

Xiaoyu Chen, Ranran Zhang, Hao Zou, Ling Li, Qiancheng Zhu, Wenming Zhang

Summary: Polyaniline-manganese dioxide composites exhibit high conductivity, long discharge platform, and stable circulation, and the specific capacity is increased by providing additional H+ ions to participate in the reaction.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

High-resolution reconstruction-based investigation of multi-scale lamellar microstructures by coupled crystal plasticity and in-situ experiment

Xutao Huang, Yinping Chen, Jianjun Wang, Gang Lu, Wenxin Wang, Zan Yao, Sixin Zhao, Yujie Liu, Qian Li

Summary: This study aims to establish a novel approach to better understand and predict the behavior of materials with multi-scale lamellar microstructures. High-resolution reconstruction and collaborative characterization methods are used to accurately represent the microstructure. The mechanical properties of pearlite are investigated using crystal plasticity simulation and in-situ scanning electron microscopy tensile testing. The results validate the reliability of the novel strategy.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Planar fault transformation and unfaulting of interstitial dislocation loops in irradiated L12-Ni3Al

Cheng Chen, Fanchao Meng, Jun Song

Summary: This study systematically investigated the unfaulting mechanism of single-layer interstitial dislocation loops in irradiated L12-Ni3Al. The unfaulting routes of the loops were uncovered and the symmetry breaking during the unfaulting processes was further elucidated. A continuum model was formulated to analyze the energetics of the loops and predict the unfaulting threshold.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

On the co-nucleation of adjoining twin pairs at grain boundaries in hexagonal close-packed materials

Darshan Bamney, Laurent Capolungo

Summary: This work investigates the formation of adjoining twin pairs (ATPs) at grain boundaries (GBs) in hexagonal close-packed (hcp) metals, focusing on the co-nucleation (CN) of pairs of deformation twins. A continuum defect mechanics model is proposed to study the energetic feasibility of CN of ATPs resulting from GB dislocation dissociation. The model reveals that CN is preferred over the nucleation of a single twin variant for low misorientation angle GBs. Further analysis considering GB character and twin system alignment suggests that CN events could be responsible for ATP formation even at low m' values.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Sharp/diffuse antiferroelectric-ferroelectric phase transition regulated by atomic displacement ordering

Bing Han, Zhengqian Fu, Guoxiang Zhao, Xuefeng Chen, Genshui Wang, Fangfang Xu

Summary: This study investigates the behavior of electric-field induced antiferroelectric to ferroelectric (AFE-FE) phase transition and reveals the evolution of atomic displacement ordering as the cause for the transition behavior changing from sharp to diffuse. The novel semi-ordered configuration results from the competing interaction between long-range displacement modulation and compositional inhomogeneity, which leads to a diffuse AFE-FE transition while maintaining the switching field.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Size-effects in tensile fracture of rejuvenated and annealed metallic glass

Akib Jabed, Golden Kumar

Summary: This study demonstrates that cryogenic rejuvenation promotes homogeneous-like flow and increases ductility in metallic glass samples. Conversely, annealing has the opposite effect, resulting in a smoother fracture surface.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Heterogeneous distribution of isothermal ω precipitates prevents brittle fracture in aged β-Ti alloys

Xin Ji, Yan Chong, Satoshi Emura, Koichi Tsuchiya

Summary: A heterogeneous microstructure in Ti-15Mo-3Al alloy with heterogeneous distributions of Mo element and omega(iso) precipitates has achieved a four-fold increase in tensile ductility without a loss of tensile strength, by blocking the propagation of dislocation channels and preventing the formation of micro-cracks.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Machine-learning-aided density functional theory calculations of stacking fault energies in steel

Amit Samanta, Prasanna Balaprakash, Sylvie Aubry, Brian K. Lin

Summary: This study proposes a combined large-scale first principles approach with machine learning and materials informatics to quickly explore the chemistry-composition space of advanced high strength steels (AHSS). The distribution of aluminum and manganese atoms in iron is systematically explored using first principles calculations to investigate low stacking fault energy configurations. The use of an automated machine learning tool, DeepHyper, speeds up the computational process. The study provides insights into the distribution of aluminum and manganese atoms in systems containing stacking faults and their effects on the equilibrium distribution.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

A physics-constrained neural network for crystal plasticity modelling of FCC materials

Guowei Zhou, Yuanzhe Hu, Zizheng Cao, Myoung Gyu Lee, Dayong Li

Summary: In this work, a physics-constrained neural network is used to predict grain-level responses in FCC material by incorporating crystal plasticity theory. The key feature, shear strain rate of slip system, is identified based on crystal plasticity and incorporated into the loss function as physical constitutive equations. The introduction of physics constraints accelerates the convergence of the neural network model and improves prediction accuracy, especially for small-scale datasets. Transfer learning is performed to capture complex in-plane deformation of crystals with any initial orientations, including cyclic loading and arbitrary non-monotonic loading.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Lanthanum and tungsten co-doped ruthenium dioxide for fresh/sea-water alkaline hydrogen evolution reaction

Pengfei Yang, Qichang Li, Zhongying Wang, Yuxiao Gao, Wei Jin, Weiping Xiao, Lei Wang, Fusheng Liu, Zexing Wu

Summary: In this study, the HER performance of Ru-based catalysts is significantly improved through the dual-doping strategy. The obtained catalyst exhibits excellent performance in alkaline freshwater and alkaline seawater, and can be stably operated in a self-assembled overall water splitting electrolyzer.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Five-fold twin structures in sputter-deposited nickel alloy films

Ilias Bikmukhametov, Garritt J. Tucker, Gregory B. Thompson

Summary: Depositing a Ni-1at. % P film can facilitate the formation of multiple quintuple twin junctions, resulting in a five-fold twin structure and a pentagonal pyramid surface topology. The ability to control material structures offers opportunities for creating novel surface topologies, which can be used as arrays of field emitters or textured surfaces.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Explainable predictions of multi-component oxides enabled by attention-based neural networks

Zening Yang, Weiwei Sun, Zhengyu Sun, Mutian Zhang, Jin Yu, Yubin Wen

Summary: Multicomponent oxides (MCOs) have wide applications and accurately predicting their thermal expansion remains challenging. This study introduces an innovative attention-based deep learning model, which achieves improved performance by using two self-attention modules and demonstrates adaptability and interpretability.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Relating the combinatorial materials chip mapping to the glass-forming ability of bulk metallic glasses via diffraction peak width

Ze Liu, Cai Chen, Yuanxun Zhou, Lanting Zhang, Hong Wang

Summary: This study attempts to address the gap in cooling rates between thin film deposition and bulk metallic glass (BMG) casting by correlating the glass-forming range (GFR) determined from combinatorial materials chips (CMCs) with the glass-forming ability (GFA) of BMG. The results show that the full-width at half maximum (FWHM) of the first sharp diffraction peak (FSDP) is a good indicator of BMG GFA, and strong positive correlations between FWHM and the critical casting diameter (Dmax) are observed in various BMG systems. Furthermore, the Pearson correlation coefficients suggest possible similarities in the GFA natures of certain BMG pairs.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Effect of stacking fault energy on the thickness and density of annealing twins in recrystallized FCC medium and high-entropy alloys

Mike Schneider, Jean-Philippe Couzinie, Amin Shalabi, Farhad Ibrahimkhel, Alberto Ferrari, Fritz Koermann, Guillaume Laplanche

Summary: This work aims to predict the microstructure of recrystallized medium and high-entropy alloys, particularly the density and thickness of annealing twins. Through experiments and simulations, a database is provided for twin boundary engineering in alloy development. The results also support existing theories and empirical relationships.

SCRIPTA MATERIALIA (2024)

添加到收藏夹
研讨会 海报 问题 讨论圈 基金 期刊 论文 科研社交 资讯集成 审稿人 关于我们 常见问题 移动App 隐私条款 使用条款
© Peeref 2019-2024. All rights reserved.