Article
Materials Science, Multidisciplinary
Henry Martin, Peter Amoako-Yirenkyi, Aarne Pohjonen, Nana K. Frempong, Jukka Komi, Mahesh Somani
Summary: The article introduces a statistically developed model for austenite decomposition during cooling, which incorporates two-way interactions of alloying elements as add-on terms. This model can predict phase transformation temperatures and critical cooling rates for the formation of polygonal ferrite, bainite or martensite in steel production.
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Snehashish Tripathy, P. S. Manoranjan Jena, Vikash Kumar Sahu, Sudip Kumar Sarkar, Sarita Ahlawat, Aniruddha Biswas, Bhupeshwar Mahato, Soumitro Tarafder, Sandip Ghosh Chowdhury
Summary: Bulk nano-pearlitic microstructure with interlamellar spacing below 100 nm was achieved by rapidly undercooling a hypereutectoid multicomponent steel. The partitioning kinetics of substitutional components between ferrite and cementite were analyzed through experiments and simulations, showing that manganese had the fastest kinetics in the early stages, followed by chromium, while manganese and silicon had much faster rates compared to chromium in the completion stages of partitioning.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Victor Ruiz-Jimenez, Jose A. Jimenez, Francisca G. Caballero, Carlos Garcia-Mateo
Summary: The evolution of bainitic ferrite plate thickness was studied in two nanostructured steels, showing an unexpected thickening of the plate during transformation contrary to existing predictions. This study tracked the changes in relevant parameters influencing microstructure scale, austenite YS, transformation driving force, and transformation rate evolution.
Article
Materials Science, Multidisciplinary
Seong Hoon Kim, Ji Hoon Kim, Jae Hoon Lee, Dong-Woo Suh, Jae Sang Lee
Summary: The present study investigates the phase constitution of a medium-carbon Q&P steel by comparing various approaches to the transformation stasis of bainitic ferrite and finds that the modified GEB approach can predict the phase constitution most accurately.
METALS AND MATERIALS INTERNATIONAL
(2022)
Article
Metallurgy & Metallurgical Engineering
Xiaosheng Zhou, Hao Chen, Chenxi Liu, Yongchang Liu
Summary: The reverse austenite transformation behavior of 9Cr ODS steels can be controlled by tailoring the heating rate and isothermal treatment, affecting the amount and size of residual ferrite in the steels.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2021)
Article
Materials Science, Multidisciplinary
John S. S. Aristeidakis, Gregory N. N. Haidemenopoulos
Summary: In this study, a physically based constitutive and transformation kinetics model is presented to describe the formation of stress-assisted and strain-induced martensite and twin in steels containing austenite. The deformation behavior of different phases is modeled using dislocation density, and the macroscopic response of the material is calculated using a homogenization method. The model predicts the fractions of different martensite and twin phases and can be used in the design of new alloys with exceptional properties.
Article
Materials Science, Multidisciplinary
Jun Takahashi, Kyohhei Ishikawa, Kazuto Kawakami, Masaaki Fujioka
Summary: This study investigates the effects and mechanisms of molybdenum and boron combined addition on the hardenability of low-carbon steels. The findings indicate that the total concentration of segregating atoms at austenite grain boundaries determines the hardenability, and boride precipitation reduces the hardenability.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2023)
Article
Metallurgy & Metallurgical Engineering
Fei Guo, Cheng-Wu Zheng, Pei Wang, Dian-Zhong Li, Yi-Yi Li
Summary: It is found in this study that under low-oxygen conditions, the addition of trace rare earth elements can significantly influence the nucleation, morphology, and growth of ferrite in Fe-0.14%C alloy, by slowing down carbon diffusion and decreasing grain boundary energy. This research provides evidence for adjusting phase transformation and improving the mechanical properties of steels through the addition of rare earth elements.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Engineering, Civil
Filip Kateusz, Adelajda Polkowska, Wojciech Polkowski, Konrad Chrzan, Krzysztof Jaskowiec, Pawel Sokolowski, Amaya Igartua, Josu Leunda, Magdalena Bisztyga-Szklarz, Tomasz Dudziak, Jerzy Jedlinski
Summary: The study investigates the impact of recycling stainless steel waste on the microstructure and chemical composition of resulting powders. It demonstrates the utility of recycling stainless steel into high-grade powders suitable for additive manufacturing. The results show that the properties and hardness of the powders vary with the particle diameter.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Zhuo Cheng, Jinyue Liu, Ruoqing Wu, Gang Liu, Shui-ze Wang
Summary: The application of microalloying technology is an effective method to enhance the strength-ductility synergy of high-strength hot-stamped steels. However, the impact of microalloying elements on the hot ductility of hot-stamped steels is still unknown. In this study, the hot ductility behavior of V microalloyed hot-stamped steels was systematically investigated over a wide temperature range from 650°C to 1300°C. It was observed that a hot brittle range exists between 650°C and 900°C, with hot ductility gradually decreasing between 900°C and 650°C. Increasing microalloying elements does not improve hot ductility within this temperature range. Detailed microstructural analysis and thermodynamic calculation revealed that the deterioration of hot ductility from 900°C to 650°C is closely related to the formation of proeutectoid ferrite and nano-scaled precipitation.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2023)
Article
Multidisciplinary Sciences
Jakub Dykas, Ludovic Samek, Adam Grajcar, Aleksandra Kozlowska
Summary: The aim of this study was to investigate the impact of alloying elements on phase transformation behavior in advanced high-strength multiphase steels. Continuous cooling transformation (CCT) and time-temperature-transformation (TTT) diagrams were calculated to analyze phase stability under different time-temperature processing parameters. Lean-alloyed transformation induced plasticity (TRIP) medium manganese steels were analyzed in this study. Thermo-Calc and JMatPro material simulation software were used to simulate phase diagrams, phase stability during heat treatments, and chemical composition evolution diagrams.
Article
Materials Science, Multidisciplinary
Oscar Rios-Diez, Ricardo Aristizabal-Sierra, Claudia Serna-Giraldo, Adriana Eres-Castellanos, Carlos Garcia-Mateo
Summary: The study shows that nanobainitic carbo-austempered cast steels exhibit better fatigue performance than traditional carburized-Q&T steels, which is attributed to the differences between the microstructures, the role of ferrite and austenite crystals in crack propagation, the importance of prior austenite boundaries and block boundaries as crack deflectors, and how all these parameters ultimately affect the fatigue behavior.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Haijiang Hu, Guang Xu, Muhammad Nabeel, Neslihan Dogan, Hatem S. Zurob
Summary: The study found that the growth of bainitic ferrite laths can be affected by pre-existing laths, causing growth interruption and re-nucleation. The newly nucleated lath shares the same crystallographic orientation with the prior lath and is termed BF-clone. During growth, transformation strain is accommodated through the formation of twin-related variant pairs.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Lidong Xing, Xiaoyue Fan, Min Wang, Lihua Zhao, Yanping Bao
Summary: The study found that proeutectoid ferrite in medium-carbon sulfur-containing blooms is more developed compared to those with lower sulfur content, and sulfur is beneficial to the formation of ferrite. MnS inclusions serve as the core of proeutectoid ferrite, with the number of precipitated MnS inclusions positively correlated to the area fraction of proeutectoid ferrite. The Mn-depleted zone around MnS inclusions is identified as the direct inducing factor for proeutectoid ferrite formation in medium-carbon sulfur-containing blooms.
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Ying Dong, Liyang Xiang, Chengjun Zhu, Yu Du, Yi Xiong, Xiaoyan Zhang, Linxiu Du
Summary: The difference in transformation mechanisms between the normal and reverse phase transformation in medium Mn steel was revealed using thermodynamic and kinetic analysis. The results indicate that the formation of austenite during the reverse phase transformation is a fast reaction, while no ferrite transformation occurs during the normal phase transformation. These differences lead to significant variations in phase transformation behaviors.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Y. X. Wu, W. W. Sun, X. Gao, M. J. Styles, A. Arlazarov, C. R. Hutchinson
Article
Engineering, Multidisciplinary
Alban de Vaucorbeil, Vinh Phu Nguyen, Christopher R. Hutchinson
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2020)
Article
Engineering, Electrical & Electronic
Zouhair Hanani, Daoud Mezzane, M'barek Amjoud, Yaovi Gagou, Khalid Hoummada, Carine Perrin, Anna G. Razumnaya, Zdravko Kutnjak, Adnane Bouzina, Mimoun El Marssi, Mohamed Goune, Brigita Rozic
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2020)
Article
Materials Science, Multidisciplinary
Benjamin M. Jenkins, Frederic Danoix, Mohamed Goune, Paul A. J. Bagot, Zirong Peng, Michael P. Moody, Baptiste Gault
MICROSCOPY AND MICROANALYSIS
(2020)
Article
Nanoscience & Nanotechnology
Sebastien Y. P. Allain, Steve Gaudez, Guillaume Geandier, Frederic Danoix, Michel Soler, Mohamed Goune
SCRIPTA MATERIALIA
(2020)
Article
Materials Science, Ceramics
Zouhair Hanani, Soukaina Merselmiz, Abdelaadim Danine, Nicolas Stein, Daoud Mezzane, M'barek Amjoud, Mohammed Lahcini, Yaovi Gagou, Matjaz Spreitzer, Damjan Vengust, Zdravko Kutnkaj, Mimoun El Marssi, Igor A. Luk'yanchuk, Mohamed Goune
JOURNAL OF ADVANCED CERAMICS
(2020)
Article
Materials Science, Multidisciplinary
Y. X. Wu, L. Y. Wang, W. W. Sun, M. J. Styles, A. J. Studer, Y. Brechet, A. Arlazarov, C. R. Hutchinson
Article
Chemistry, Physical
Zouhair Hanani, Ilyasse Izanzar, M'barek Amjoud, Daoud Mezzane, Mohammed Lahcini, Hana Ursic, Uros Prah, Ismael Saadoune, Mimoun El Marssi, Igor A. Luk'yanchuk, Zdravko Kutnjak, Mohamed Goune
Summary: In this study, a self-poled and bio-flexible piezoelectric nanogenerator (BF-PNG) was designed using lead-free biocompatible nanoparticles, demonstrating the ability to generate voltage and current under gentle finger tapping with outstanding mechanical robustness and stable output. Additionally, the BF-PNG exhibited a high power density under low resistive load.
Article
Materials Science, Multidisciplinary
Michael Moriarty, Yuxiang Wu, Timothy Murray, Christopher Hutchinson
Summary: The study reveals that reducing the β phase fraction can enhance the dezincification resistance of brass, while small α grain size and high aspect ratio (Widmanstatten structure) are equally important for dezincification control. Percolation simulations highlight the significance of β phase interconnectivity and geometric arrangements in dezincification behavior. These findings offer new possibilities for metallurgists to design brass microstructures that balance dezincification performance with strength, formability, machinability, and thermo-mechanical processing schedules.
Article
Engineering, Manufacturing
Huikai Li, Erin G. Brodie, Christopher Hutchinson
Summary: An advantage of LPBF is the ability to create complex components easily. Most studies focus on commercially available powders, neglecting new alloy design. Mixing powders with different chemistries is an effective way to access new alloy compositions. This study extends a previously published model to describe the chemical distribution of LPBF material from mixed powders, incorporating remelting process and comparing it with experiments.
ADDITIVE MANUFACTURING
(2023)
Editorial Material
Chemistry, Physical
Christopher Hutchinson
Summary: Additively manufactured AlSi10Mg alloy exhibits high fatigue strength, comparable to its tensile strength, especially for micro-sized samples, due to the fine cells in its inherent three-dimensional network acting as cages to restrict damage accumulation.
Article
Materials Science, Multidisciplinary
Xiaohan Weng, Yuxiang Wu, Jie Luo, Christopher Hutchinson
Summary: A new type of microstructure design concept for high strength steels, involving a nanolaminate structure of martensite and austenite, has been proposed using a method called 'chemical patterning'. A computational model has been developed to simulate the chemical patterning process and has been successfully used to design two chemically-patterned alloys with different levels of retained austenite. Experimental results confirm the effectiveness of this approach and demonstrate the interesting performance of the new microstructures.
Article
Chemistry, Multidisciplinary
Zouhair Hanani, El-houssaine Ablouh, Soukaina Merselmiz, Jaafar Ghanbaja, M'barek Amjoud, Daoud Mezzane, Abdelhadi Alimoussa, Mohammed Lahcini, Matjaz Spreitzer, Damjan Vengust, Mimoun El Marssi, Igor A. Luk'yanchuk, Zdravko Kutnjak, Mohamed Goune
Summary: The study found that precursor concentrations and dwell time in hydrothermal reactions play a critical role in the formation of BCZT multipods, and the desirable BCZT phase was obtained in samples using low barium and calcium concentrations and at a short reaction time. This research has general validity and can be extended to design more complex perovskite oxides.
Article
Chemistry, Multidisciplinary
Zouhair Hanani, Soukaina Merselmiz, Daoud Mezzane, M'barek Amjoud, Andraz Bradesko, Brigita Rozic, Mohammed Lahcini, Mimoun El Marssi, Andrey Ragulya, Igor A. Luk'yanchuk, Zdravko Kutnjak, Mohamed Goune
Article
Materials Science, Multidisciplinary
L. Y. Wang, Y. X. Wu, W. W. Sun, Y. Brechet, L. Brassart, A. Arlazarov, C. R. Hutchinson