steel research international最新文献_第10页

Unveiling the Correlation among Microstructure, Texture, Slip System Activity, and Tensile Property in a Hot Rolled Ni Containing Medium-Mn Steel

IF 1.9 3区材料科学

steel research international Pub Date : 2024-09-29 DOI: 10.1002/srin.202400537

Suman Kumar, Debarpan Ghosh, Rahul Rakshit, Subrata Mukherjee, Sumantra Mandal

{"title":"Unveiling the Correlation among Microstructure, Texture, Slip System Activity, and Tensile Property in a Hot Rolled Ni Containing Medium-Mn Steel","authors":"Suman Kumar, Debarpan Ghosh, Rahul Rakshit, Subrata Mukherjee, Sumantra Mandal","doi":"10.1002/srin.202400537","DOIUrl":"https://doi.org/10.1002/srin.202400537","url":null,"abstract":"The microstructure–texture–tensile property relationships in a Ni-containing medium-Mn steel (Ni-MMS), subjected to limited thermomechanical processing steps (i.e., hot forging and hot rolling), have been established in this study. The microstructure of the specimens hot rolled (HR) at 1173 (HR-1173K) and 1373 K (HR-1373K) exhibits ferrite and austenite phases. The austenite phase fraction in the HR-1173K specimen is found to be higher than the HR-1373K condition. The volume fraction of austenite to martensite transformation during tensile testing is also observed to be higher in the HR-1173K specimen (≈13%) than the HR-1373K condition (≈2%). This suggests the occurrence of more efficient transformation-induced plasticity effect in the HR-1173K specimen in comparison to the HR-1373K condition, resulting in improved strength–ductility synergy in the former specimen. The smaller grain size of both the phases and higher fraction of twin boundaries as well the evolution of higher intensity γ-fiber <111>//ND in the HR-1173K specimen leads to better tensile properties. In addition, the overall activation of the primary slip systems (combination of face-centered cubic and body-centered cubic phases slip system), estimated through visco-plastic self-consistent simulation, is higher in HR-1173K specimens, resulting in improved strain hardening response as compared to HR-1373K one.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 2","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202400537","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Formation of Bainite in a Low-Carbon Steel at Slow Cooling Rate – Experimental Observations and Thermodynamic Validation

IF 1.9 3区材料科学

steel research international Pub Date : 2024-09-29 DOI: 10.1002/srin.202400593

Poulami Chakraborty, Suman Neogy, Nilabja Kanti Sarkar, Harish Donthula, Subir Kumar Ghosh, Hillol Kumar Nandi, Bandarupalli Gopalakrishna, Ilangovan Balasundar, Raghvendra Tewari

{"title":"Formation of Bainite in a Low-Carbon Steel at Slow Cooling Rate – Experimental Observations and Thermodynamic Validation","authors":"Poulami Chakraborty, Suman Neogy, Nilabja Kanti Sarkar, Harish Donthula, Subir Kumar Ghosh, Hillol Kumar Nandi, Bandarupalli Gopalakrishna, Ilangovan Balasundar, Raghvendra Tewari","doi":"10.1002/srin.202400593","DOIUrl":"https://doi.org/10.1002/srin.202400593","url":null,"abstract":"Bainitic microstructures in high-strength steels are obtained either by continuous cooling or isothermal holding. Both scenarios necessitate faster cooling to keep the parent austenite phase untransformed till the bainite-start temperature. The present study reports the development of bainitic microstructure in a low-carbon steel with minimal alloying additions, under continuous cooling at very slow rates, similar to furnace cooling. For understanding the related transformation pathways, samples from the forged-steel ingot are austenitized and cooled at different rates, viz. water quenching, air cooling, and furnace cooling. Microstructural characterization reveals development of acicular microstructures in all samples including the forged one, with gross absence of carbides. X-ray diffraction confirms the ferritic nature of acicular plates and also indicated retained austenite present in some samples, the content of which could be correlated to the extent of bainitic transformation. Thermodynamic calculations together with microstructural observations (e.g., ferrite plate size) and hardness data established the development of fully martensitic microstructure on water quenching, while that of a mixed microstructure comprising predominantly of bainite in the forged, air cooled, and furnace-cooled condition. The aforementioned findings could have wider implications in developing fully bainitic microstructures in large components, where uniform rapid cooling is not practically feasible.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 2","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202400593","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evolution of Crystallographic Texture and Its Impact on Magnetic Losses of Non-oriented Electrical Steel

IF 1.9 3区材料科学

steel research international Pub Date : 2024-09-29 DOI: 10.1002/srin.202400545

Marta Barbosa Alvim, Lucas Carlos Soares de Matos, Marília Faria de Oliveira Caizer, Leonel Muniz Meireles, Marcus Vinicius Pereira Arruda, Daniel Leandro Rocco

{"title":"Evolution of Crystallographic Texture and Its Impact on Magnetic Losses of Non-oriented Electrical Steel","authors":"Marta Barbosa Alvim, Lucas Carlos Soares de Matos, Marília Faria de Oliveira Caizer, Leonel Muniz Meireles, Marcus Vinicius Pereira Arruda, Daniel Leandro Rocco","doi":"10.1002/srin.202400545","DOIUrl":"https://doi.org/10.1002/srin.202400545","url":null,"abstract":"In this study, how crystallographic texture and changes in microstructure affect the magnetic properties of a semi-processed non-oriented (NO) electrical steel, which is investigated in its as-received state and after heat treatment, is evaluated. Electron backscattered diffraction analysis shows the variation in texture with a crystallographic orientation changing from a predominance of γ and α fibers to a random one after heat treatment, with a significant increase in components with <100> directions in the sheet plane, which are desired for NO steels because they are parallel to the direction of easy magnetization. Heat treatment has also increased the average grain size of the samples from 18 to 128 μm. Magnetic properties are analyzed over a wide frequency range and induction, presenting different behaviors in permeability and magnetic loss for the samples before and after heat treatment. The components of total magnetic loss are also evaluated, and the hysteresis loss of heat-treated sample decreases significantly. This demonstrates that heat treatment reduces microstructural imperfections, causing a decrease in hysteresis losses. Therefore, it is concluded that the improvement in magnetic performance observed with heat treatment has its origin in the increase in fiber components related to the <100> directions and a decrease in microstructural imperfections.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contents: steel research int. 10/2024 内容：国际钢铁研究协会10/2024

IF 1.9 3区材料科学

steel research international Pub Date : 2024-09-28 DOI: 10.1002/srin.202470103

引用次数: 0

A Novel Technique for Preparation and Separation of Iron Carbide from Sintering Dust

IF 1.9 3区材料科学

steel research international Pub Date : 2024-09-27 DOI: 10.1002/srin.202400407

Yanan Lv, Dong Chen

引用次数: 0

Effect of Trace Magnesium Addition on TiN Inclusions and Microstructure in 20CrMnTi Gear Steel

IF 1.9 3区材料科学

steel research international Pub Date : 2024-09-27 DOI: 10.1002/srin.202400558

Zexin Qi, Jin Wang, Yun Bai, Wei Liu, Shufeng Yang, Feilong Zhang, Jingshe Li

{"title":"Effect of Trace Magnesium Addition on TiN Inclusions and Microstructure in 20CrMnTi Gear Steel","authors":"Zexin Qi, Jin Wang, Yun Bai, Wei Liu, Shufeng Yang, Feilong Zhang, Jingshe Li","doi":"10.1002/srin.202400558","DOIUrl":"https://doi.org/10.1002/srin.202400558","url":null,"abstract":"To enhance the quality of the microtitanium alloy steel, this study is the first to utilize the addition of trace amounts of magnesium in 20CrMnTi gear steel to improve the TiN inclusions and microstructure within this type of steel. Herein, the effect of different magnesium contents (0–50 ppm) on nonmetallic inclusions in steel is taken as a starting point. Simultaneously, the pinning effect of the modified inclusions on the microstructure is also explored. The results indicate that after adding magnesium, the average size of the inclusions decreases from 2.8 to 2.3 μm, and the grain boundary mobility M decreases from 16 to 1.27 × 10−11 m4 kJ−1 s−1. Mg can reduce Ca and Ti in oxide inclusions, forming finer MgAl2O4 particles, thereby refining their size. The formed MgO and MgAl2O4 act as inhomogeneous nucleation sites for nitrides, resulting in smaller size, more uniform distribution, and less harmful TiN. Notably, TiN can provide nucleation sites for MnS. The size and distribution of sulfides are also improved during the modulation of TiN. It is found that the modulated TiN–MgO–MnS microinclusions can be used as austenitic pinning particles. These particles increase the pinning resistance and improve the grain boundary mobility, thus contributing to grain refinement.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Substructure of Quenched High-Carbon Pearlite in Fe–C Alloys

IF 1.9 3区材料科学

steel research international Pub Date : 2024-09-27 DOI: 10.1002/srin.202400406

Yujing Zhang, Xinru Zhou, Xia Wu, Jialong Yue, Ke Zhao, Kai Zhai, Songjie Li, Xiaomei Yu, Jinyou Zheng, Dehai Ping

{"title":"The Substructure of Quenched High-Carbon Pearlite in Fe–C Alloys","authors":"Yujing Zhang, Xinru Zhou, Xia Wu, Jialong Yue, Ke Zhao, Kai Zhai, Songjie Li, Xiaomei Yu, Jinyou Zheng, Dehai Ping","doi":"10.1002/srin.202400406","DOIUrl":"https://doi.org/10.1002/srin.202400406","url":null,"abstract":"After a brief review of the history of pearlite structures in carbon steels, particularly on the pearlite formation mechanism, recent experimental investigations on the pearlite substructure are presented to express a distinct point of view. The water-quenched high-carbon pearlite substructure is investigated in detail by means of scanning electron microscopy and transmission electron microscopy. In the experimental observation results, it is shown that the cementite layer or ferrite layer in pearlite is composed of fine grains, which cannot be simply explained by traditional nucleation and grain growth mechanisms. However, the fine grain structure can be explained by the martensitic transformation products (twinned martensite with ultrafine grains of α–Fe and twinning boundaries ω–Fe (or ω–Fe3C)) and detwinning process. Upon tempering or detwinning, recrystallization of the ultrafine grains of both crystalline phases occurs to form the initial pearlite structure, while the grain size of both phases is still fine. The twinned martensite can be treated as the precursor of pearlite structure (pearlite nucleation stage), and the detwinning process can be regarded as the growth of the pearlite structure. Thus, the pearlite reaction can be described as follows: austenite → twinned martensite → pearlite.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 2","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulating Study on the Shrinkage Cavity and Porosity of a Microalloyed Steel Ingot

IF 1.9 3区材料科学

steel research international Pub Date : 2024-09-27 DOI: 10.1002/srin.202400584

Yadong Wang, Lifeng Zhang

{"title":"Simulating Study on the Shrinkage Cavity and Porosity of a Microalloyed Steel Ingot","authors":"Yadong Wang, Lifeng Zhang","doi":"10.1002/srin.202400584","DOIUrl":"https://doi.org/10.1002/srin.202400584","url":null,"abstract":"A 3D solidification model coupling heat transfer, solidification, and shrinkage porosity are established. The effect of melting temperature and cooling modes on the solidification time, shrinkage cavity, and porosity is investigated by the simulation. When the melting temperatures are 1510, 1530, and 1550 °C, the depth of the shrinkage cavity changes little, and they are about 44.8 mm. Maximal shrinkage porosity below the shrinkage cavity are 79.0%, 80.5%, and 82.0%, respectively. When the melting temperature is 1570 °C, the depth of the shrinkage cavity increases to 52.7 mm, and the maximal shrinkage porosity below the shrinkage cavity decreases to 75.5%. For three cooling modes, water cooling, air cooling, and furnace cooling, the cooling intensity gradually decreases, the solidification time increases, and the time of complete solidification is 72.0, 218.5, and 1382.2 s, respectively. With the decrease of cooling intensity, the shrinkage cavity shape and depth of the ingot vary obviously, and the depth of the V-shaped shrinkage cavity is 39.9, 44.6, and 0 mm. The maximal shrinkage porosity is 76.0%, 82.0%, and 90.9%, respectively. Considering solidification time, shrinkage cavity, and porosity, water cooling mode should be used to obtain the dense internal quality of the steel ingot.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 2","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Revealing the Dynamic Recrystallization Mechanism and Hot Workability of Fe–0.15C–10Mn Medium-Mn Steel through Grain Size Distribution and 3D Processing Maps

IF 1.9 3区材料科学

steel research international Pub Date : 2024-09-26 DOI: 10.1002/srin.202400386

Xiaoyun Sun, Qi Liu, Yuanpei Duan, Huadong Jian, Mingzhi Bao, Shubo Wang

{"title":"Revealing the Dynamic Recrystallization Mechanism and Hot Workability of Fe–0.15C–10Mn Medium-Mn Steel through Grain Size Distribution and 3D Processing Maps","authors":"Xiaoyun Sun, Qi Liu, Yuanpei Duan, Huadong Jian, Mingzhi Bao, Shubo Wang","doi":"10.1002/srin.202400386","DOIUrl":"https://doi.org/10.1002/srin.202400386","url":null,"abstract":"An in-depth understanding of thermal deformation of medium-Mn steels (MMnSs) is crucial for the forming fabrication of key automotive components. In this work, the Fe–0.15C–10Mn MMnSs are compressed under conditions of 900–1150 °C/0.001–10 s−1. Two-stage models, dynamic recovery (DRV) and dynamic recrystallization (DRX), are constructed and proved to be accurately predictive with a correlation coefficient (R) of 0.997% and average absolute relative error (AARE) of 2.67%. Based on the analysis of microstructure evolution, the discontinuous DRX occured at a specific deformation condition of 900 °C–10 s−1, while the continuous DRX generated at other deformed conditions. The discontinuous DRX grains only distributed along pre-existing grain boundaries, showing a necklace-like grain structure with multiple small zigzag protrusions at the boundary. While continuous DRX grains with low dislocation density distributed both along and inside the pre-existing grain boundaries. The developed 3D processing map identified high strain rate (0.1–10 s−1) as instability domains, in which heterogeneous microstructure are observed. Consequently, optimum hot working domain is determined to be 975–1150 °C/0.001–0.05 s−1. Complete DRX and subsequent growth of small DRXed grains result in a homogeneous microstructure, contributing to the optimal processing zone with η > 0.29.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143119800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wettability of Mold Flux with Various Droplet Size on Stainless Steel Substrate

IF 1.9 3区材料科学

steel research international Pub Date : 2024-09-26 DOI: 10.1002/srin.202400270

Xianzheng Si, Wanlin Wang, Lejun Zhou, Sibao Zeng, Liwu Zhang, Jianghua Qi, Peng Liu

引用次数: 0