Tetsu To Hagane-journal of The Iron and Steel Institute of Japan最新文献_第5页

Surrogate-based Shape Optimization of Immersion Nozzle in Continuous Casting 基于代理的连铸浸没喷嘴形状优化

IF 0.3 4区材料科学

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2023-06-01 DOI: 10.2355/tetsutohagane.tetsu-2022-094

Tokinaga Namba, N. Okada

引用次数: 0

Preface to the Special Issue “Cutting Edge of Applications of Data Science in Steels” 《数据科学在钢铁领域的前沿应用》特刊前言

IF 0.3 4区材料科学

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2023-06-01 DOI: 10.2355/tetsutohagane.109.463

T. Hama

引用次数: 0

人の意思決定が埋め込まれた生産システムのモデル化と分析对嵌入人的决策的生产系统进行建模和分析

IF 0.3 4区材料科学

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2023-06-01 DOI: 10.2355/tetsutohagane.tetsu-2022-099

H. Mizuyama

引用次数: 0

Microvoid Formation of Ferrite-martensite Dual-phase Steel via Tensile Deformation after Severe Plastic Shear-deformation 铁素体-马氏体双相钢在剧烈塑性剪切变形后拉伸变形形成微空洞

IF 0.3 4区材料科学

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2023-05-15 DOI: 10.2355/tetsutohagane.tetsu-2022-049

T. Matsuno, Nanami Kinoshita, Tomoko Matsuda, Yoshiaki Honda, T. Yasutomi

引用次数: 1

Carbon Enrichment of Austenite during Ferrite-bainite Transformation in Low-alloy-steel 低合金钢铁素体-贝氏体相变过程中奥氏体的碳富集

IF 0.3 4区材料科学

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2023-03-15 DOI: 10.2355/tetsutohagane.tetsu-2021-045

Shun Tanaka, H. Shirahata, G. Shigesato, Manabu Takahashi

{"title":"Carbon Enrichment of Austenite during Ferrite-bainite Transformation in Low-alloy-steel","authors":"Shun Tanaka, H. Shirahata, G. Shigesato, Manabu Takahashi","doi":"10.2355/tetsutohagane.tetsu-2021-045","DOIUrl":"https://doi.org/10.2355/tetsutohagane.tetsu-2021-045","url":null,"abstract":": The bainitic transformation kinetics and carbon enrichment of austenite during isothermal holding at 723–923 K were investigated for an Fe-0.1mass%C-0.5mass%Si-2.0mass%Mn alloy. The transformation progressed rapidly until approximately 50 s, after which transformation stasis was observed at 823 K. The carbon concentration of austenite increased as the transformation proceeded, and showed an almost constant value during stasis. It reached approximately 0.45-0.50% at 823 K, which corresponds to the carbon concentration at the T 0 ’ composition with an additional strain energy of 100 J/mol associated with the transformation. After stasis, a slight increase in the ferrite or bainitic ferrite fraction was observed. The carbon concentration of austenite also increased and reached approximately 0.60%, clearly exceeding the carbon concentration at the T 0 composition. These results imply that at the first stage, the bainite transformation occurs and shows the incomplete transformation, following which at the second stage, diffusional ferrite transformation proceeds. The additional strain energy associated with the transformation calculat-ed from the carbon concentration at stasis due to the incomplete bainite transformation tends to decrease as the holding temperature increases. This indicates that strain relaxation due to the transformation occurred at higher holding temperatures.","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"258 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76218458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Development of Iron Recovery Technique from Steelmaking Slag by Reduction at High Temperature 炼钢渣高温还原回收铁技术的发展

IF 0.3 4区材料科学

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2023-03-15 DOI: 10.2355/tetsutohagane.tetsu-2021-027

Kenji Nakase, Akitoshi Matsui, Nakai Yoshie, N. Kikuchi, Kishimoto Yasuo, Isshuu Tetsuyama

引用次数: 1

Carbon Migration Behavior during Rolling Contact in Tempered Martensite and Retained Austenite of Carburized SAE4320 Steel 渗碳SAE4320钢回火马氏体和残余奥氏体轧制接触过程中的碳迁移行为

IF 0.3 4区材料科学

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2023-03-15 DOI: 10.2355/tetsutohagane.tetsu-2021-073

K. Kanetani, K. Ushioda

{"title":"Carbon Migration Behavior during Rolling Contact in Tempered Martensite and Retained Austenite of Carburized SAE4320 Steel","authors":"K. Kanetani, K. Ushioda","doi":"10.2355/tetsutohagane.tetsu-2021-073","DOIUrl":"https://doi.org/10.2355/tetsutohagane.tetsu-2021-073","url":null,"abstract":": The changes in the state of carbon in tempered martensite and retained austenite in carburized SAE4320 steel under the rolling contact fatigue (RCF) were investigated using atom probe tomography (APT). In the tempered martensite, the carbons in solid solution and in carbon cluster were readily transferred to the preexisting metastable ( ε ) carbide due to rolling contact, resulting in a localized change from tempered martensite to ferrite accompanied by the growth of carbides. This supports the recently proposed dislocation assisted carbon migration theory. On the other hand, retained austenite with uniformly dis-tributed enriched solute carbon was partially transformed into the very fine deformation-induced martensite due to rolling contact. Furthermore, carbon seemed to be partitioned into retained austenite from the deformation-induced martensite during further rolling contact cycles. This is a new insight into the characteristics of deformation-induced martensite and retained austenite generated by rolling contact. The present study provides a plausible explanation to the phenomenon that the deformation-induced martensitic transformation improves the RCF life.","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"159 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87087111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Estimation of Changes in Content and Characteristics of Mold Flux during Continuous Casting 连铸过程中结晶器助熔剂含量和特性变化的估计

IF 0.3 4区材料科学

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2023-03-15 DOI: 10.2355/tetsutohagane.tetsu-2021-039

Shuhei Irie, Kenji Tsuzumi, Akitoshi Matsui, N. Kikuchi

引用次数: 0

Effect of Pro-eutectoid Cementite on Fatigue Crack Growth Behavior of Pearlitic Steels 前共析渗碳体对珠光体钢疲劳裂纹扩展行为的影响

IF 0.3 4区材料科学

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2023-01-15 DOI: 10.2355/tetsutohagane.tetsu-2022-023

Keisuke Ando, H. Ohtsubo, T. Tagawa

{"title":"Effect of Pro-eutectoid Cementite on Fatigue Crack Growth Behavior of Pearlitic Steels","authors":"Keisuke Ando, H. Ohtsubo, T. Tagawa","doi":"10.2355/tetsutohagane.tetsu-2022-023","DOIUrl":"https://doi.org/10.2355/tetsutohagane.tetsu-2022-023","url":null,"abstract":": The influence of pro-eutectoid cementite on fatigue crack growth behavior was investigated using various pearlitic steels containing from 0.64 to 1.21 mass%C. The fatigue crack growth rates of the hy-po-eutectoid and eutectoid pearlitic steels hardly changed, while that of the 1.21 mass%C steel having a large amount of pro-eutectoid cementite (θ) was accelerated especially in the high stress intensity factor region. Scanning electron microscope (SEM) observation revealed that fatigue fracture surface in the 1.21 mass%C steel more frequently contained islanded brittle fracture surfaces than that in other steels. In the 1.21 mass%C steel, the total area fraction of brittle fracture surface was notably increased with an en-hancement in maximum stress intensity factor ( K max ) due to crack extension. More detailed SEM fractog-raphies were performed comparing between before and after etching in order to identify microstructures beneath the brittle fracture appearances on the fatigue fracture surface of the 1.21 mass%C steel. As a re-sults, it was suggested that the pro-eutectoid θ was involved in the formation of brittle fracture. Based on these investigations, the accelerated fatigue crack growth behavior of hyper-eutectoid steel was discussed in terms of static brittle fracture induced by pro-eutectoid θ near the crack tip.","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"52 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88896697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Comparison of Fatigue Crack Propagation Behavior of Additive Manufactured Zero Thermal Expansion Alloy with Forged and Casted Materials 增材制造零热膨胀合金与锻造和铸造材料疲劳裂纹扩展行为的比较

IF 0.3 4区材料科学

Tetsu To Hagane-journal of The Iron and Steel Institute of Japan Pub Date : 2023-01-15 DOI: 10.2355/tetsutohagane.tetsu-2021-084

Toshihiro Shimizu, H. Ikuta, T. Kato, Toshiharu Tanaka, Nobuyuki Oyama, Mitsuki Asahina, Y. Hasumi, Yuki Nakamura

引用次数: 0