High Temperature Materials and Processes最新文献_第9页

INFLUENCE OF ANNEALING ON THE PHYSICAL AND MECHANICAL PROPERTIES OF (TiSi)N/CrN MULTILAYER COATINGS PRODUCED BY CATHODIC ARC PHYSICAL VAPOUR DEPOSITION 退火对阴极电弧物理气相沉积(TiSi)N/CrN多层涂层物理力学性能的影响

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2022-01-01 DOI: 10.1615/hightempmatproc.2022046618

Denys Horokh, O. Maksakova, V. Beresnev, S. Lytovchenko, S. Klymenko, V. Grudnitsky, Iryna Doshchechkina, O. Glukhov

引用次数: 0

Residual stress relaxation considering microstructure evolution in heat treatment of metallic thin-walled part 考虑微观组织演变的金属薄壁件热处理残余应力松弛

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2022-01-01 DOI: 10.1515/htmp-2022-0036

Q. Bai, Ziliang Chen, Y. Gao, Hang Li, Jingang Tang

{"title":"Residual stress relaxation considering microstructure evolution in heat treatment of metallic thin-walled part","authors":"Q. Bai, Ziliang Chen, Y. Gao, Hang Li, Jingang Tang","doi":"10.1515/htmp-2022-0036","DOIUrl":"https://doi.org/10.1515/htmp-2022-0036","url":null,"abstract":"Abstract The forming-induced residual stress of metallic parts could cause undesired deformation in the final machining process, especially for the thin-walled parts. Therefore, heat treatment is essential to release the residual stress prior to machining. This study investigates the residual stress change of a forged pure iron part in annealing heat treatment and material removal processes. A modified creep constitutive model with the consideration of microstructure evolution was established to describe the residual stress relaxation in the annealing. Stress relaxation tests were conducted to calibrate the material constants. This constitutive model was then implemented into the finite element model of annealing for the cold-forged semi-spherical shell. The residual stress and the grain size of the shell were predicted at different heating temperatures. The semi-spherical shells were machined to the final thin-walled parts, and the deformation owing to the residual stress release was measured and compared to the simulation results. The heating temperature was determined aiming to minimize the machining-induced deformation as well as to ensure the microstructure. This study could provide guidance to the elimination of the residual stress and the improvement of the geometrical accuracy for thin-walled parts in the machining process.","PeriodicalId":12966,"journal":{"name":"High Temperature Materials and Processes","volume":"41 1","pages":"364 - 374"},"PeriodicalIF":1.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48486637","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

Optimization of alkali metals discharge performance of blast furnace slag and its extreme value model 高炉炉渣碱金属排放性能优化及其极值模型

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2022-01-01 DOI: 10.1515/htmp-2022-0013

Yan-bo Chen, Yong Deng, Ran Liu, Li-da Chen, Xingfeng Guo

{"title":"Optimization of alkali metals discharge performance of blast furnace slag and its extreme value model","authors":"Yan-bo Chen, Yong Deng, Ran Liu, Li-da Chen, Xingfeng Guo","doi":"10.1515/htmp-2022-0013","DOIUrl":"https://doi.org/10.1515/htmp-2022-0013","url":null,"abstract":"Abstract In order to improve the alkali metals discharge capacity of slag, the gas-slag balance method was used to carry out the slag alkali metals discharge experiments, the effect of slag composition on alkali metals discharge performance of slag was studied, some suggestions were put forward to optimize the alkali metals discharge performance of slag and the extreme value model was established. The results show that the alkali metals discharge ratio of slag decreased with the increase in the binary basicity and mass fraction of TiO2, and increased with the increase in the mass fraction of MgO, Al2O3 and MnO. The change in slag composition led to the change in the solubility of alkali metal oxides in liquid slag, decomposition of alkali metal silicates, structure of the slag in liquid state and viscosity of the slag, and then affected the alkali metals discharge performance of slag. The ability of slag to absorb alkali metals was certain under the condition of fixed composition. With the help of slag alkali metals discharge extreme value model, whether the current slag meets the needs of blast furnace alkali metals discharge could be evaluated. The alkali metals discharge capacity of slag could be improved by optimizing the alkali metals discharge performance of slag combined with experiments and actual production.","PeriodicalId":12966,"journal":{"name":"High Temperature Materials and Processes","volume":"41 1","pages":"306 - 314"},"PeriodicalIF":1.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44813879","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

Microstructure and mechanical properties of NbC–Ni cermets prepared by microwave sintering 微波烧结制备NbC-Ni陶瓷的显微结构和力学性能

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2022-01-01 DOI: 10.1515/htmp-2022-0049

Si-wen Tang, Hao Zhang, Zhifu Yang, Qian Liu, Zhengyong Lv, Congsen Ouyang, X. Qiu

{"title":"Microstructure and mechanical properties of NbC–Ni cermets prepared by microwave sintering","authors":"Si-wen Tang, Hao Zhang, Zhifu Yang, Qian Liu, Zhengyong Lv, Congsen Ouyang, X. Qiu","doi":"10.1515/htmp-2022-0049","DOIUrl":"https://doi.org/10.1515/htmp-2022-0049","url":null,"abstract":"Abstract This study shows the application of microwave sintering (MS) on preparing NbC–10Ni and NbC–12Ni cermets, as well as the effect of its microstructure, phase formation, and mechanical properties. Results indicated that NbC–Ni cermets with a fine and uniform structure can be obtained by MS in a relatively short time. And the sintering temperature greatly influenced the microstructure and mechanical properties of NbC–Ni cermets, whereas the effect of dwell time is relatively small. With the increase of the sintering temperature, the microstructure of NbC–Ni cermets experienced sintering densification and grain growth. The strength and toughness increased first and then decreased, and the hardness increased with the increase of sintering temperature. According to the comprehensive mechanical properties, the optimized sintering process is 1,390°C and the dwell time is 15 min. At this time, no new phase formed, but the diffraction peak of the Ni phase shifted. Through analysis, it is found that the improvement mechanisms for comprehensive mechanical properties of NbC–Ni cermets mainly include grain refinement, crack deflection and bridging, and energy absorption of the ductile phase of Ni.","PeriodicalId":12966,"journal":{"name":"High Temperature Materials and Processes","volume":"41 1","pages":"482 - 492"},"PeriodicalIF":1.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45975945","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: 4

Effect of microstructure on tribocorrosion of FH36 low-temperature steels 组织对FH36低温钢摩擦腐蚀的影响

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2022-01-01 DOI: 10.1515/htmp-2022-0034

Liang Shi, D. Huo, Yanhua Lei, Shaopeng Qu, Xueting Chang, Y. Yin

引用次数: 0

Dephosphorization kinetics of high-P-containing reduced iron produced from oolitic hematite ore 鲕状赤铁矿高含磷还原铁脱磷动力学研究

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2022-01-01 DOI: 10.1515/htmp-2022-0017

Liwei Liu, Guofeng Li, Yanfeng Li, Libing Zhao

{"title":"Dephosphorization kinetics of high-P-containing reduced iron produced from oolitic hematite ore","authors":"Liwei Liu, Guofeng Li, Yanfeng Li, Libing Zhao","doi":"10.1515/htmp-2022-0017","DOIUrl":"https://doi.org/10.1515/htmp-2022-0017","url":null,"abstract":"Abstract To comprehensively utilize Fe and P in oolitic hematite ore, an innovative method was proposed to enhance P enrichment in the reduced iron during the reduction process. The reduced iron was then converted to low-P-containing molten iron and high-P-containing slag in the presence of CaO–SiO2–FeO–Al2O3 slag. In this study, the P content of the final iron after 0–1,800 s dephosphorization was investigated at different slag composition conditions, and the dephosphorization kinetics of the reduced iron was analyzed. The results showed that the P content of the final iron sample decreased rapidly within 600 s of dephosphorization and became almost constant with increasing dephosphorization time to 1,800 s. The basicity, FeO content, and Al2O3 content also affected the dephosphorization rate of the reduced iron. The apparent dephosphorization rate constant ranged from 1.141 × 10−3 to 2.363 × 10−3 g·(cm2·s)−1, and the overall mass transfer coefficient ranged from 2.47 × 10−3 to 3.38 × 10−3 cm·s−1. The rate-controlling step of the dephosphorization process was the mass transfer of P in both the slag and iron phases. The findings of this study provide a theoretical basis for the utilization of refractory oolitic hematite ore.","PeriodicalId":12966,"journal":{"name":"High Temperature Materials and Processes","volume":"41 1","pages":"48 - 56"},"PeriodicalIF":1.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47007034","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

Discrete probability model-based method for recognition of multicomponent combustible gas explosion hazard sources 基于离散概率模型的多组分可燃气体爆炸危险源识别方法

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2022-01-01 DOI: 10.1515/htmp-2021-0052

Wenhua Ye, Yang Feng, Yangming Chen

引用次数: 0

Experimental study on the preparation of ferrophosphorus alloy using dephosphorization furnace slag by carbothermic reduction 碳热还原脱磷炉渣制备磷铁合金的试验研究

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2022-01-01 DOI: 10.1515/htmp-2022-0236

S. He, Lu Lin, Ya-qin Liu, Meng-Yao Feng, Zhongxiao Hou, Wei Wu

引用次数: 0

Application on oxidation behavior of metallic copper in fire investigation 金属铜氧化行为在火灾调查中的应用

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2022-01-01 DOI: 10.1515/htmp-2022-0014

Xie Dongbai, H. Hao, Duo Shuwang, Li Qiang

{"title":"Application on oxidation behavior of metallic copper in fire investigation","authors":"Xie Dongbai, H. Hao, Duo Shuwang, Li Qiang","doi":"10.1515/htmp-2022-0014","DOIUrl":"https://doi.org/10.1515/htmp-2022-0014","url":null,"abstract":"Abstract In fire investigations, the most important aspect is determining the presence of a liquid accelerant at the fire scene. The presence or absence of accelerants is critical evidence during trials for fire cases. Upon exposure to high temperatures, metallic substances undergo oxidation, which can be imparted by accelerants in the fire. Oxides and substrates found on metal surfaces offer valuable information on the characteristics of fire, including exposure temperature, duration, and involvement of a liquid accelerant. In this study, we investigated the oxidation behavior of copper at high temperatures in a simulated flame environment using ethanol combustion. After oxidation, the morphological, oxide phase composition, and microstructural features of specimens were characterized by observation, X-ray diffraction, X-ray photoelectron energy spectroscopy, transmission electron microscopy, and scanning electron microscopy with energy-dispersive spectroscopic analysis. The elemental carbon with a hexagonal structure deposited on the sample’s surface was found, which may be incomplete combustion and the chemical composition of ethanol. Copper has a preferred orientation of oxide on the (111) crystal plane, which differs from oxidation in ordinary hot air that is related to the large Coulomb force of the (111) crystal plane. Hot air convection due to combustion may cause large areas of oxide layer on the copper surface to crack and peel. Oxide properties and surface state of metals strongly depended on oxidation duration, temperature, and atmosphere. These data shall offer reference information for determining the presence of combustion accelerants at fire scenes.","PeriodicalId":12966,"journal":{"name":"High Temperature Materials and Processes","volume":"41 1","pages":"216 - 223"},"PeriodicalIF":1.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44977448","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

Thermodynamic calculation of phase equilibria in the Al–Fe–Zn–O system Al–Fe–Zn–O体系相平衡的热力学计算

IF 1.5 4区材料科学

High Temperature Materials and Processes Pub Date : 2022-01-01 DOI: 10.1515/htmp-2022-0249

N. Matsumoto, T. Tokunaga

{"title":"Thermodynamic calculation of phase equilibria in the Al–Fe–Zn–O system","authors":"N. Matsumoto, T. Tokunaga","doi":"10.1515/htmp-2022-0249","DOIUrl":"https://doi.org/10.1515/htmp-2022-0249","url":null,"abstract":"Abstract The thermodynamics of the phase equilibria in the Al–Fe–Zn–O quaternary system was studied using the calculation of phase diagrams method to understand the oxidation behavior of the Zn bath surface during galvanizing process. The thermodynamic parameters for the Gibbs energies of the different constituent phases in the binary and ternary systems relevant to this quaternary system were taken mainly from previous studies. In this study, the thermodynamic assessment of the Al2O3–ZnO system was carried out based on the available experimental data, and some modifications to the thermodynamic model and/or parameters for the Fe–Zn–O ternary system were made to maintain consistency with the thermodynamic descriptions of other binary and ternary systems, making up the Al–Fe–Zn–O quaternary system adopted in this study. The calculated results on the ternary and quaternary systems generally agreed with the available experimental results on phase equilibria. The set of thermodynamic parameters enabled us to calculate the phase equilibria in the Al–Fe–Zn–O quaternary system over the entire composition and temperature ranges.","PeriodicalId":12966,"journal":{"name":"High Temperature Materials and Processes","volume":"41 1","pages":"605 - 620"},"PeriodicalIF":1.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45468927","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