High Temperature Materials and Processes最新文献_第3页

A study of the void surface healing mechanism in 316LN steel 316LN钢孔隙表面愈合机制的研究

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI: 10.1515/htmp-2022-0282

Mingli Qin, Jiansheng Liu, Jing-dan Li, Xuezhong Zhang

{"title":"A study of the void surface healing mechanism in 316LN steel","authors":"Mingli Qin, Jiansheng Liu, Jing-dan Li, Xuezhong Zhang","doi":"10.1515/htmp-2022-0282","DOIUrl":"https://doi.org/10.1515/htmp-2022-0282","url":null,"abstract":"Abstract The behavior of void surface healing in 316LN steel samples undergoing thermal plasticity deformation was investigated using the Gleeble 1500 thermomechanical simulator. The characterization of the void surface after plastic deformation was analyzed under different deformation temperatures, deformation amounts, and holding time durations. The morphology evolution and microstructure of the void surface healing zone during thermal plasticity deformation and holding time duration stage were analyzed using electron back scatter diffraction imaging. The mechanism of void surface healing under thermal plasticity deformation was investigated. It was found that the degree of void surface healing increases with the degree of deformation and the duration of the holding time. Dynamic recrystallization occurred continuously at the void surface, resulting in a plethora of crystal defects and a substantial amount of energy. These conditions were conducive to atomic diffusion and migration, thereby promoting the healing process of the void surface. Maintaining high temperature after deformation can continue to provide energy for the diffusion and migration of atoms, promotes the growth of recrystallized grains, and gradually heals the void surface.","PeriodicalId":12966,"journal":{"name":"High Temperature Materials and Processes","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45525743","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

Influence of submerged entry nozzle on funnel mold surface velocity 浸入式喷嘴对漏斗模具表面速度的影响

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI: 10.1515/htmp-2022-0247

Limin Zhang, Liguang Zhu, Cai-Jun Zhang, Pengcheng Xiao, Xingjuan Wang

{"title":"Influence of submerged entry nozzle on funnel mold surface velocity","authors":"Limin Zhang, Liguang Zhu, Cai-Jun Zhang, Pengcheng Xiao, Xingjuan Wang","doi":"10.1515/htmp-2022-0247","DOIUrl":"https://doi.org/10.1515/htmp-2022-0247","url":null,"abstract":"Abstract In this article, physical and numerical simulation of the flow field in flexible thin slab caster funnel mold at high casting speed is carried out with a five-hole submerged entry nozzle (FHSEN), and characteristics of the flow field on funnel mold liquid level under different casting speeds (4, 5, and 6 m·min−1) and different submerged depths (130, 160, and 190 mm) are studied by comparing with the new submerged entry nozzle (NSEN) designed. Physical simulation is based on the funnel mold prototype. Numerical simulation is carried out based on FLUENT software, and industrial experiments of two kinds of submerged entry nozzle are also carried out. The results show that in the case of both physical and numerical simulation, the maximum surface velocity of the FHSEN funnel mold is 0.58 m·s−1, and the funnel mold liquid level is prone to slag entrapment. The NSEN funnel mold’ maximum surface velocity is 0.37 m·s−1. Compared with the FHSEN, the NSEN funnel mold’ maximum surface velocity decreases by 0.21 m·s−1, and funnel mold surface velocity decreases significantly. Finally, the accuracy of simulation results is verified by industrial tests, and it is also show that NSEN can greatly reduce funnel mold surface velocity and probability of slag entrapment.","PeriodicalId":12966,"journal":{"name":"High Temperature Materials and Processes","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44076552","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: 1

Influence of shielding gas on machining and wear aspects of AISI 310–AISI 2205 dissimilar stainless steel joints 保护气体对AISI 310–AISI 2205异种不锈钢接头加工和磨损方面的影响

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI: 10.1515/htmp-2022-0262

Mahadevan Govindasamy, Lloyd Jenner Mangalakaran Joseph Manuel, Senthilkumar Thamilkolunthu

引用次数: 0

Dry synthesis of brannerite (UTi2O6) by mechanochemical treatment 机械化学法干法合成银辉石(UTi2O6)

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI: 10.1515/htmp-2022-0268

Daisuke Akiyama, Tomoki Mishima, Y. Okamoto, A. Kirishima

{"title":"Dry synthesis of brannerite (UTi2O6) by mechanochemical treatment","authors":"Daisuke Akiyama, Tomoki Mishima, Y. Okamoto, A. Kirishima","doi":"10.1515/htmp-2022-0268","DOIUrl":"https://doi.org/10.1515/htmp-2022-0268","url":null,"abstract":"Abstract A powder mixture of UO2 and TiO2 was mechanochemically treated in a planetary ball mill under Ar atmosphere for 1 h using a tungsten carbide vial and balls as the milling medium. Such mechanochemical (MC) treatment reduced the crystallinity of UO2 and TiO2. The mechanochemically treated powder mixture was heated at 700–1,300°C for 6 h under Ar atmosphere and analyzed by X-ray diffraction analysis, scanning electron microscopy-energy-dispersive X-ray spectroscopy, and X-ray absorption fine structure analysis. For comparison, a UO2 and TiO2 mixture without MC treatment was heated and analyzed under the same conditions. UTi2O6 did not form below 1,100°C without MC treatment and only the starting materials were observed. At 1,200 and 1,300°C, a small amount of UTi2O6 and equal amounts of UTi2O6 and UO2 were formed, respectively. The mechanochemically treated sample produced nearly pure UTi2O6 containing small amounts of UO2 impurities when heated above 900°C for 6 h. UTi2O6 was highly crystalline and uniform regardless of the synthesis temperature. It is suggested that the crystallinity of UO2 and TiO2 was reduced and the formation of UTi2O6 was promoted by MC treatment.","PeriodicalId":12966,"journal":{"name":"High Temperature Materials and Processes","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44052214","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

Effect of refining slag compositions on its melting property and desulphurization 精炼渣成分对其熔炼性能和脱硫性能的影响

4区材料科学

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI: 10.1515/htmp-2022-0293

Shisen Li, Lingzhong Kong, Zhaolong Xu

引用次数: 0

Aluminum oxide films fabricated by reactive electron-beam evaporation in the forevacuum pressure range 在前真空压力范围内反应电子束蒸发制备氧化铝薄膜

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI: 10.1615/hightempmatproc.2023048009

V. Burdovitsin, K. Karpov, L. Ngon A. Kiki, E. Oks

引用次数: 0

First-principles investigation of phase stability and elastic properties of Laves phase TaCr2 by ruthenium alloying 钌合金化Laves相TaCr2的相稳定性和弹性的第一性原理研究

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI: 10.1515/htmp-2022-0255

Shishi Wei, Xuan Xiao, Kai Zhou, Jing Yao, Dezhi Chen

引用次数: 0

Transfer and transformation mechanism of chromium in stainless steel slag in pedosphere 不锈钢渣中铬在土壤圈中的迁移转化机理

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI: 10.1515/htmp-2022-0252

Shuang Cai, Liguang Wang, Yuzhu Zhang, Tao Li, Tie Tian, Tianji Liu

{"title":"Transfer and transformation mechanism of chromium in stainless steel slag in pedosphere","authors":"Shuang Cai, Liguang Wang, Yuzhu Zhang, Tao Li, Tie Tian, Tianji Liu","doi":"10.1515/htmp-2022-0252","DOIUrl":"https://doi.org/10.1515/htmp-2022-0252","url":null,"abstract":"Abstract The trivalent chromium (Cr) leached from stainless steel slag can be oxidized into hexavalent Cr with strong toxicity in the natural storage process, thus causing severe pollution to the surrounding soil, water, and atmosphere. Currently, the toxicity hazards caused by high Cr concentrations in plants, animals, and humans have attracted widespread attention from across the world. In this study, an overview is presented regarding the occurrence mode, leaching mechanism, and influencing factors for the presence of Cr in the soil of stainless steel slag under natural landfilling conditions. Meanwhile, a summary is made for the research progress in Cr absorption, transport, and accumulation in the soil–plant system. Besides, allowing for the toxicity and detrimental effect of Cr(vi) in the soil as well as the application of biological and chemical methods for the remediation of Cr(vi)-contaminated soil, a review is conducted on the approach to recycling Cr from stainless steel slag and the application of chemical remediation and biological methods to remedy Cr-containing soil. Finally, a discussion is conducted about the transfer and transformation behavior of Cr in soil–plant system, the practical application of soil remediation technology and the prospect of research in this field.","PeriodicalId":12966,"journal":{"name":"High Temperature Materials and Processes","volume":"42 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41320414","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: 1

Technology and analysis of 08Cr9W3Co3VNbCuBN steel large diameter thick wall pipe welding process 08Cr9W3Co3VNbCuBN钢大直径厚壁管焊接工艺技术分析

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI: 10.1515/htmp-2022-0256

Feng Wang, Fengshou Zhang, Jiang Ma, Xizhen Ma

引用次数: 0

Comparison of data-driven prediction methods for comprehensive coke ratio of blast furnace 高炉综合焦比数据驱动预测方法的比较

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI: 10.1515/htmp-2022-0261

Xiuyun Zhai, Mingtong Chen

{"title":"Comparison of data-driven prediction methods for comprehensive coke ratio of blast furnace","authors":"Xiuyun Zhai, Mingtong Chen","doi":"10.1515/htmp-2022-0261","DOIUrl":"https://doi.org/10.1515/htmp-2022-0261","url":null,"abstract":"Abstract The emission of blast furnace (BF) exhaust gas has been criticized by society. It is momentous to quickly predict the comprehensive coke ratio (CCR) of BF, because CCR is one of the important indicators for evaluating gas emissions, energy consumption, and production stability, and also affects composite economic benefits. In this article, 13 data-driven prediction techniques, including six conventional and seven ensemble methods, are applied to predict CCR. The result of ten-fold cross-validation indicates that multiple linear regression (MLR) and support vector regression (SVR) based on radial basis function are superior to the other methods. The mean absolute error, the root mean square error, and the coefficient of determination (R 2) of the MLR model are 1.079 kg·t−1, 1.668, and 0.973, respectively. The three indicators of the SVR model are 1.158 kg·t−1, 1.878, and 0.975, respectively. Furthermore, AdaBoost based on linear regression has also strong prediction ability and generalization performance. The three methods have important significances both in theory and in practice for predicting CCR. Moreover, the models constructed here can provide valuable hints into realizing data-driven control of the BF process.","PeriodicalId":12966,"journal":{"name":"High Temperature Materials and Processes","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49447862","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: 3