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International Journal of Cast Metals Research最新文献

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Study on the extraction of poor scandium from low-grade rare earth ores 从低品位稀土矿石中提取贫钪的研究
IF 1.4 4区 材料科学
International Journal of Cast Metals Research Pub Date : 2023-04-07 DOI: 10.1080/13640461.2023.2199505
Xiaojun Yang, Xunmei Zhu, Guoliang Yin, Kun Zhou, Zhenhua Feng, Kun Zhu
{"title":"Study on the extraction of poor scandium from low-grade rare earth ores","authors":"Xiaojun Yang, Xunmei Zhu, Guoliang Yin, Kun Zhou, Zhenhua Feng, Kun Zhu","doi":"10.1080/13640461.2023.2199505","DOIUrl":"https://doi.org/10.1080/13640461.2023.2199505","url":null,"abstract":"ABSTRACT Based on the analysis of chemical composition and the phase of scandium-containing clay type rare earth ore in a place in China, it is found that the content of scandium in the ore is 18.55 g/t. Due to the low leaching rate of direct acid leaching, the effect of the roasting process on the leaching rate of scandium from the raw ore was investigated. By comparing the operation of the two leaching processes, oxidised roasting-hydrochloric acid leaching and alkali roasting-hydrochloric acid leaching, we obtain the optimal technical conditions for both leaching processes. At the same time, the mechanism of alkali roasting was investigated and the conclusions obtained are of some reference for the extraction of scandium from low-grade rare earth ores.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":"36 1","pages":"36 - 44"},"PeriodicalIF":1.4,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42188379","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
Rheological properties of ADC12 Al alloy in the semi-solid state ADC12铝合金半固态流变特性研究
IF 1.4 4区 材料科学
International Journal of Cast Metals Research Pub Date : 2023-04-04 DOI: 10.1080/13640461.2023.2197808
S. Gautam, H. Roy, A. K. Lohar, Sudip Samanta
{"title":"Rheological properties of ADC12 Al alloy in the semi-solid state","authors":"S. Gautam, H. Roy, A. K. Lohar, Sudip Samanta","doi":"10.1080/13640461.2023.2197808","DOIUrl":"https://doi.org/10.1080/13640461.2023.2197808","url":null,"abstract":"ABSTRACT The present investigation emphasises on rheological behaviour of semi-solid slurry of ADC12 Al alloy in order to understand mould filling behaviour during semi-solid processing. Three different experimental investigations are done using rheometer, namely, continuous cooling test, isothermal test and shear jump test, to understand the rheological behaviour of ADC12 Al alloy. Continuous cooling tests reveal increase in slurry viscosity with decrease in temperature at a specific shear rate. The isothermal test results show decreasing viscosity with increase in rate of shear and confirm that semi-solid slurry experiences shear-thinning phenomena. Shear jump experiments (SJEs) show that the viscosity of the semi-solid slurry is less sensitive at higher shear rate, which is desirable. The steady state and iso-structural stress values (obtained from SJEs) at low shear rate region showcase an upward movement of solid content, i.e. with a proportionally downward slurry temperature.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":"36 1","pages":"18 - 26"},"PeriodicalIF":1.4,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44417035","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
Experimental study of MQL applicability in ADI grinding and its influence on surface topography MQL在ADI磨削中的适用性及其对表面形貌影响的实验研究
IF 1.4 4区 材料科学
International Journal of Cast Metals Research Pub Date : 2023-04-04 DOI: 10.1080/13640461.2023.2198076
M. E. Furno, C. Tealdi, A. D. Sosa
{"title":"Experimental study of MQL applicability in ADI grinding and its influence on surface topography","authors":"M. E. Furno, C. Tealdi, A. D. Sosa","doi":"10.1080/13640461.2023.2198076","DOIUrl":"https://doi.org/10.1080/13640461.2023.2198076","url":null,"abstract":"ABSTRACT When workpieces require tight tolerance or a good surface finish, grinding is usually the best solution. Yet this process is characterised by generating a great amount of heat that needs to be controlled. The minimum quantity lubrication (MQL) system emerged as an alternative to the flood cooling system. Nevertheless, the employment of the former in austempered ductile iron (ADI) surface grinding is still an unexplored topic. This research seeks to experimentally study the applicability of MQL and the influence of the wheel speed and workspeed, in the surface topography of ADI samples subjected to different conditions of surface grinding. ADI surface topography was acquired, then the roughness parameters and surface hardness alterations were determined. The results show that the application of MQL in ADI surface grinding is possible. The surface roughness is similar to that of the flood cooling system and the surface hardness alterations are small.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":"36 1","pages":"27 - 35"},"PeriodicalIF":1.4,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43222609","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
Activity of strontium in liquid Sr-modified Al-7Si alloy 锶在液态sr改性Al-7Si合金中的活度
IF 1.4 4区 材料科学
International Journal of Cast Metals Research Pub Date : 2023-03-11 DOI: 10.1080/13640461.2023.2186567
S. M. Miresmaeili, B. Nami, I. Khoubrou
{"title":"Activity of strontium in liquid Sr-modified Al-7Si alloy","authors":"S. M. Miresmaeili, B. Nami, I. Khoubrou","doi":"10.1080/13640461.2023.2186567","DOIUrl":"https://doi.org/10.1080/13640461.2023.2186567","url":null,"abstract":"ABSTRACT In the present study, the Henrian activity coefficient of strontium , dissolved in liquid Al-7Si alloy at 725–730°C has been determined to be in the order of 10−2, using the numerical thermodynamic analyses. By knowing the , formation of the compounds, Sr(OH)2 and SrH2 through the reaction of dissolved elements in Al-7Si alloy melt has been analysed. The results indicated that the free energy of the formation reaction of Sr(OH)2 and SrH2 in the alloy melt are positive at different temperatures, showing that these compounds may not be formed in the liquid aluminium alloys.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":"36 1","pages":"1 - 8"},"PeriodicalIF":1.4,"publicationDate":"2023-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44240361","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
Effects of the superheating degree and cooling intensity on the as-cast microstructure of CP780 thin slab 过热度和冷却强度对CP780薄板坯铸态组织的影响
IF 1.4 4区 材料科学
International Journal of Cast Metals Research Pub Date : 2023-03-11 DOI: 10.1080/13640461.2023.2188682
X. Fang, Yonggang Yang, Wangzhong Mu, Xiao-yu Yang, Han-long Zhang, Z. Mi
{"title":"Effects of the superheating degree and cooling intensity on the as-cast microstructure of CP780 thin slab","authors":"X. Fang, Yonggang Yang, Wangzhong Mu, Xiao-yu Yang, Han-long Zhang, Z. Mi","doi":"10.1080/13640461.2023.2188682","DOIUrl":"https://doi.org/10.1080/13640461.2023.2188682","url":null,"abstract":"ABSTRACT This paper studied the effects of the superheating degree and cooling intensity on the solidification structure of CP 780 slab. The results indicated that the equiaxed crystal ratio decreases with the increase of superheating degree and the cooling intensity. When the superheating degree increases from 15 to 25°C, the equiaxed crystal ratio drops sharply. While the equiaxed crystal ratio decreases slightly with an increasing superheating degree from 25°C to 55°C. It is further revealed that the superheating degree has a greater effect on the equiaxed crystal ratio compared with the influence of cooling intensity. Quantitative analysed the relationship among the equiaxed crystal ratio, the superheating degree and cooling intensity is in line with the Extreme 2D model. The accuracy of the model performance can reach 97.6% when predicting the equiaxed crystal ratio of CSP-CP 780 during CSP process.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":"36 1","pages":"9 - 17"},"PeriodicalIF":1.4,"publicationDate":"2023-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45512627","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 Al2O3 Nano Particle Addition on Mechanical Properties and Creep Behaviour of High Pressure Die Cast AZ91-1Sr Alloy Al2O3纳米颗粒添加对高压压铸AZ91-1Sr合金力学性能和蠕变行为的影响
IF 1.4 4区 材料科学
International Journal of Cast Metals Research Pub Date : 2022-11-02 DOI: 10.1080/13640461.2023.2178077
Y. Ateș, Selma Özarslan, Güven Yarkadaş, Hüseyin Şevik
{"title":"Effect of Al2O3 Nano Particle Addition on Mechanical Properties and Creep Behaviour of High Pressure Die Cast AZ91-1Sr Alloy","authors":"Y. Ateș, Selma Özarslan, Güven Yarkadaş, Hüseyin Şevik","doi":"10.1080/13640461.2023.2178077","DOIUrl":"https://doi.org/10.1080/13640461.2023.2178077","url":null,"abstract":"ABSTRACT The AZ91-1Sr alloy, the 0.5, 1 and 2 vol.% Al2O3/AZ91-1Sr nanocomposites were fabricated by high pressure die casting method and investigated the effect of nano Al2O3 particles on the mechanical properties and creep behaviour of the AZ91-1Sr alloy. Mechanical and creep tests disclosed remarkable enhancements in the yield strength, tensile strength, hardness and creep resistance of the AZ91-1Sr alloy with addition of nano Al2O3 particles. The best results were obtained in the case of the addition of 2 vol.% Al2O3 nano particles.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":"35 1","pages":"218 - 225"},"PeriodicalIF":1.4,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46159512","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
Effects of melt titanium content on the grain structure and mechanical properties of Al-5Ti-B-modified alloy 2618 熔体钛含量对Al-5Ti-B变质2618合金晶粒结构和力学性能的影响
IF 1.4 4区 材料科学
International Journal of Cast Metals Research Pub Date : 2022-11-02 DOI: 10.1080/13640461.2023.2177784
Zhe‐ming Zhu, Junxiu Chen, Chang-jun Wu, Ya Liu, Jianhua Wang, X. Su
{"title":"Effects of melt titanium content on the grain structure and mechanical properties of Al-5Ti-B-modified alloy 2618","authors":"Zhe‐ming Zhu, Junxiu Chen, Chang-jun Wu, Ya Liu, Jianhua Wang, X. Su","doi":"10.1080/13640461.2023.2177784","DOIUrl":"https://doi.org/10.1080/13640461.2023.2177784","url":null,"abstract":"ABSTRACT In this study, the effects of melt titanium content on the grain structure and mechanical properties of Al-5Ti-B-modified alloy 2618 were investigated. The results showed that when the titanium content in the melt was zero, the best modification effects were obtained when the amount of Al-5Ti-B added was 1.5 wt.%. When the amount of Al-5Ti-B added was fixed at 0.5 wt.%, the best modification effects were obtained when the melt titanium content was 0.05 wt.%. When the final titanium content of alloy 2618 was fixed at 0.1 wt.%, the best modification effect was obtained when the melt titanium content was fixed at 0.03 wt.% and the alloy was modified with 1.4 wt.% Al-5Ti-B. Considering the production cost and excellent modification effects, the optimal melting and modification treatment process for alloy 2618 are as follows: an alloy melt titanium content of 0.05 wt.% and an alloy modified with 0.5 wt.% Al-5Ti-B.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":"35 1","pages":"206 - 217"},"PeriodicalIF":1.4,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47552184","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
Formation mechanisms of surface blistering in AA6xxx rolled products: microstructure characterisation, ultrasonic analysis, and rolling tests results AA6xxx轧制产品表面起泡形成机理:微观结构表征、超声分析和轧制试验结果
IF 1.4 4区 材料科学
International Journal of Cast Metals Research Pub Date : 2022-11-02 DOI: 10.1080/13640461.2023.2172372
Pascal Gauthier, M. Javidani, Tao Wang, John Evans
{"title":"Formation mechanisms of surface blistering in AA6xxx rolled products: microstructure characterisation, ultrasonic analysis, and rolling tests results","authors":"Pascal Gauthier, M. Javidani, Tao Wang, John Evans","doi":"10.1080/13640461.2023.2172372","DOIUrl":"https://doi.org/10.1080/13640461.2023.2172372","url":null,"abstract":"ABSTRACT The source of surface blister defect in 6xxx series Al rolled products was studied. A blister defect, aligned with the rolling direction, was observed on the surface of the AA6xxx Al rolled sheets. It was indicated that the porosities and small microstructural inhomogeneities inside the cast ingots, identified by ultrasonic tests and metallography analysis, were not the origin of these surface defects. Pilot scale rolling trials indicated that the blister defects were correlated with the longitudinal internal casting cracks. The short side cracks in the cast ingots, covered by a thin Al oxide layer, were not healed and remained partially open after the rolling process. The unhealed cracks served as the nucleation sites for H2 precipitation during the later stages of the thermomechanical process, which were subsequently resulted from surface blisters on the AA6xxx Al rolled sheets.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":"35 1","pages":"169 - 180"},"PeriodicalIF":1.4,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45381603","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
Investigation of the mechanism for interaction of calcium zirconate, oxides of calcium and zirconium with titanium melts 锆酸钙、钙和锆的氧化物与钛熔体相互作用机理的研究
IF 1.4 4区 材料科学
International Journal of Cast Metals Research Pub Date : 2022-11-02 DOI: 10.1080/13640461.2023.2167285
A. Mamayeva, A. Panichkin, M. Chukmanova, A. Imbarova, B. Kenzhaliyev, V. Belov
{"title":"Investigation of the mechanism for interaction of calcium zirconate, oxides of calcium and zirconium with titanium melts","authors":"A. Mamayeva, A. Panichkin, M. Chukmanova, A. Imbarova, B. Kenzhaliyev, V. Belov","doi":"10.1080/13640461.2023.2167285","DOIUrl":"https://doi.org/10.1080/13640461.2023.2167285","url":null,"abstract":"ABSTRACT The problem to obtain casting molds for titanium alloys is not resolved in full. It is primarily due to the high reactivity of titanium alloys resulting in their interaction with refractory materials. This reduces the quality of the castings due to the formation of various defects. The interaction of VT1-0 grade titanium in the liquid state with CaO, ZrO2 and CaZrO3 were studied. The processes occurring at the contact boundary between these substances and a change in the structure and microhardness of titanium castings near this boundary were described herein. The data obtained showed the disadvantages of molding materials based on CaO and CaZrO3. The features revealed for the interaction of a titanium melt with CaZrO3, where a highly porous CaTiO3 layer has been formed in the reaction zone,made it possible to recommend this compound as a promising material to cast molds in order to produce castings from titanium alloys.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":"35 1","pages":"152 - 160"},"PeriodicalIF":1.4,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43264479","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 cooling rate on eutectic constituent and solid solubility of Al-6Cu alloy 冷却速率对Al-6Cu合金共晶成分和固溶度的影响
IF 1.4 4区 材料科学
International Journal of Cast Metals Research Pub Date : 2022-11-02 DOI: 10.1080/13640461.2022.2146918
Xiang-Jie Wang, Lin-Lin Yang, H. Tan, F. Yu, Jianzhong Cui
{"title":"Effect of cooling rate on eutectic constituent and solid solubility of Al-6Cu alloy","authors":"Xiang-Jie Wang, Lin-Lin Yang, H. Tan, F. Yu, Jianzhong Cui","doi":"10.1080/13640461.2022.2146918","DOIUrl":"https://doi.org/10.1080/13640461.2022.2146918","url":null,"abstract":"ABSTRACT The ingots of Al-6Cu alloy were prepared by the wedge-shaped copper mode casting with the cooling rates of 2 K/s, 10 K/s, 25 K/s and 100 K/s to explore the effect of cooling rate on the area fraction of eutectic constituent, α-Al lattice parameter and relative solid solubility. The experimental results revealed that when the cooling rate rose from 2 K/s to 10 K/s, the area fraction of the eutectic constituent and the lattice parameter of α-Al decelerated, but the relative solid solubility of α-Al increased. When the cooling rate continued to reach 100 K/s, the area fraction of the eutectic constituent and the α-Al lattice parameter elevated, lowering the α-Al relative solid solubility. According to the model of non-diffusion of solid phase and incomplete mixed solidification of a liquid phase, as for Al-6Cu alloy, relative solid solubility initially increases and then decreases with a boost in cooling rate. The model results are consistent with the experimental results.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":"35 1","pages":"131 - 138"},"PeriodicalIF":1.4,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46212697","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
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