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Journal of Light Metals: Guest editorial 《轻金属杂志》:客座编辑
Journal of Light Metals Pub Date : 2002-11-01 DOI: 10.1016/S1471-5317(03)00021-X
G. Schaffer
{"title":"Journal of Light Metals: Guest editorial","authors":"G. Schaffer","doi":"10.1016/S1471-5317(03)00021-X","DOIUrl":"https://doi.org/10.1016/S1471-5317(03)00021-X","url":null,"abstract":"","PeriodicalId":100798,"journal":{"name":"Journal of Light Metals","volume":"114 1","pages":"199"},"PeriodicalIF":0.0,"publicationDate":"2002-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79335480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
First principles studies of TiAl-based alloys TiAl基合金的第一性原理研究
Journal of Light Metals Pub Date : 2002-08-01 DOI: 10.1016/S1471-5317(02)00038-X
Y. Song , Z.X. Guo , R. Yang
{"title":"First principles studies of TiAl-based alloys","authors":"Y. Song ,&nbsp;Z.X. Guo ,&nbsp;R. Yang","doi":"10.1016/S1471-5317(02)00038-X","DOIUrl":"https://doi.org/10.1016/S1471-5317(02)00038-X","url":null,"abstract":"<div><p><span>As potential candidates for high-temperature applications, TiAl-based intermetallic alloys have been under extensive experimental and theoretical studies in the past two decades. Particularly, simulations from the first principles have offered great insight into the electronic structure and the effects of alloying additions on the intrinsic properties of the materials. This article attempts to highlight the current activities in the field of </span>first principles simulations for the prediction of mechanical properties of TiAl. The preference of sublattice sites of various alloying elements and their effects on lattice distortion were investigated and discussed in relation to experimental findings.</p></div>","PeriodicalId":100798,"journal":{"name":"Journal of Light Metals","volume":"2 3","pages":"Pages 115-123"},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1471-5317(02)00038-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72106996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 27
Modelling of light metals: from the atomic scale to the processing of automotive and aerospace components 轻金属建模：从原子尺度到汽车和航空航天部件的加工
Journal of Light Metals Pub Date : 2002-08-01 DOI: 10.1016/S1471-5317(03)00003-8
Peter D Lee
{"title":"Modelling of light metals: from the atomic scale to the processing of automotive and aerospace components","authors":"Peter D Lee","doi":"10.1016/S1471-5317(03)00003-8","DOIUrl":"https://doi.org/10.1016/S1471-5317(03)00003-8","url":null,"abstract":"","PeriodicalId":100798,"journal":{"name":"Journal of Light Metals","volume":"2 3","pages":"Page 113"},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1471-5317(03)00003-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72106999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of water ejection and water incursion on the evolution of thermal field during the start-up phase of the direct chill casting process 直接冷铸启动阶段水喷射和水侵入对热场演化的影响
Journal of Light Metals Pub Date : 2002-08-01 DOI: 10.1016/S1471-5317(02)00040-8
J. Sengupta, S. Cockcroft, D. Maijer, M. Wells, A. Larouche
{"title":"The effect of water ejection and water incursion on the evolution of thermal field during the start-up phase of the direct chill casting process","authors":"J. Sengupta, S. Cockcroft, D. Maijer, M. Wells, A. Larouche","doi":"10.1016/S1471-5317(02)00040-8","DOIUrl":"https://doi.org/10.1016/S1471-5317(02)00040-8","url":null,"abstract":"","PeriodicalId":100798,"journal":{"name":"Journal of Light Metals","volume":"22 1","pages":"137-148"},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82805349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
The effect of water ejection and water incursion on the evolution of thermal field during the start-up phase of the direct chill casting process 直接冷铸工艺启动阶段喷水和进水对热场演变的影响
Journal of Light Metals Pub Date : 2002-08-01 DOI: 10.1016/S1471-5317(02)00040-8
J Sengupta , S.L Cockcroft , D Maijer , M.A Wells , A Larouche
{"title":"The effect of water ejection and water incursion on the evolution of thermal field during the start-up phase of the direct chill casting process","authors":"J Sengupta ,&nbsp;S.L Cockcroft ,&nbsp;D Maijer ,&nbsp;M.A Wells ,&nbsp;A Larouche","doi":"10.1016/S1471-5317(02)00040-8","DOIUrl":"https://doi.org/10.1016/S1471-5317(02)00040-8","url":null,"abstract":"<div><p>A comprehensive mathematical model has been developed to describe heat transfer during the start-up phase of the direct chill casting process. The model, based on the commercial finite element package ABAQUS, includes primary cooling to the mould, secondary cooling to water and ingot base cooling. The algorithm used to account for secondary cooling to the water includes boiling curves that are a function of surface temperature, water flow rate and position relative to the point of water impingement. In addition, the secondary cooling algorithm accounts for water ejection, which can occur at low water flow rates (low heat extraction rates). The algorithm used to describe ingot base cooling, includes the drop in contact heat transfer due to base deformation (butt curl) and also the increase in heat transfer due to water incursion between the ingot base and the bottom block. The model has been verified against temperature measurements obtained from two 711×1680 mm AA5182 ingots, cast under different conditions (non-typical “cold” practice and non-typical “hot” practice). Ingot base deflection data has also been obtained for the two test castings. Comparison of the model predictions with the data collected from the embedded thermocouples indicates that a 2-D longitudinal model is capable of describing the flow of heat in the early stages of the casting process in a region close to the centre of the rolling face. A sensitivity analysis completed with the model has clearly identified the link between ingot base cooling and secondary water-cooling heat transfer during the start-up phase.</p></div>","PeriodicalId":100798,"journal":{"name":"Journal of Light Metals","volume":"2 3","pages":"Pages 137-148"},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1471-5317(02)00040-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72106995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
Three-dimensional smoothed particle hydrodynamics simulation of high pressure die casting of light metal components 轻金属零件高压压铸的三维光滑粒子流体动力学模拟
Journal of Light Metals Pub Date : 2002-08-01 DOI: 10.1016/S1471-5317(02)00043-3
Paul W. Cleary, Joseph Ha
{"title":"Three-dimensional smoothed particle hydrodynamics simulation of high pressure die casting of light metal components","authors":"Paul W. Cleary,&nbsp;Joseph Ha","doi":"10.1016/S1471-5317(02)00043-3","DOIUrl":"https://doi.org/10.1016/S1471-5317(02)00043-3","url":null,"abstract":"<div><p>In this paper we present the extension of smoothed particle hydrodynamics (SPH) modelling of high pressure die casting (HPDC) to both three-dimensions (3D) and to realistic die geometries. The SPH method is well established in other areas and is now used for HPDC. The SPH method (in 3D) and the methodology used to represent complex three-dimensional die shapes are described. The use of this SPH system to model the filling of a representative generic HPDC component is presented. The importance of the order of the die filling, first seen in two dimensions, is demonstrated as is the role of flow separation from corners and even moderately curved surfaces. The degree of surface fragmentation, droplet formation and the strongly transient nature of the voidage are also shown. Finally the filling of the runner, gate and die for a real automotive piston head from an automatic transmission is shown and the difficulties inherent in such large scale computations are discussed.</p></div>","PeriodicalId":100798,"journal":{"name":"Journal of Light Metals","volume":"2 3","pages":"Pages 169-183"},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1471-5317(02)00043-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72115973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 25
First principles studies of TiAl-based alloys 钛基合金的第一性原理研究
Journal of Light Metals Pub Date : 2002-08-01 DOI: 10.1016/S1471-5317(02)00038-X
Y. Song, Zhengxiao Guo, Ren-fu Yang
{"title":"First principles studies of TiAl-based alloys","authors":"Y. Song, Zhengxiao Guo, Ren-fu Yang","doi":"10.1016/S1471-5317(02)00038-X","DOIUrl":"https://doi.org/10.1016/S1471-5317(02)00038-X","url":null,"abstract":"","PeriodicalId":100798,"journal":{"name":"Journal of Light Metals","volume":"51 1","pages":"115-123"},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83601471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 27
Prediction of internal cracking in a direct-chill cast, high strength, Al–Mg–Si alloy 直冷铸造高强度Al-Mg-Si合金内部裂纹预测
Journal of Light Metals Pub Date : 2002-08-01 DOI: 10.1016/S1471-5317(02)00042-1
H. Nagaumi, T. Umeda
{"title":"Prediction of internal cracking in a direct-chill cast, high strength, Al–Mg–Si alloy","authors":"H. Nagaumi, T. Umeda","doi":"10.1016/S1471-5317(02)00042-1","DOIUrl":"https://doi.org/10.1016/S1471-5317(02)00042-1","url":null,"abstract":"","PeriodicalId":100798,"journal":{"name":"Journal of Light Metals","volume":"33 1","pages":"161-167"},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72971116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 25
Isothermal subtransus forging of Ti–6Al–2Sn–4Zr–6Mo Ti–6Al–2Sn–4Zr–6Mo的等温亚变速器锻造
Journal of Light Metals Pub Date : 2002-08-01 DOI: 10.1016/S1471-5317(02)00044-5
M Jackson, R.J Dashwood, L Christodoulou, H.M Flower
{"title":"Isothermal subtransus forging of Ti–6Al–2Sn–4Zr–6Mo","authors":"M Jackson,&nbsp;R.J Dashwood,&nbsp;L Christodoulou,&nbsp;H.M Flower","doi":"10.1016/S1471-5317(02)00044-5","DOIUrl":"https://doi.org/10.1016/S1471-5317(02)00044-5","url":null,"abstract":"<div><p><span>A testing methodology for evaluating the microstructural evolution of the α</span> <!-->+<!--> <!-->β titanium alloy Ti–6Al–2Sn–4Zr–6Mo (Ti-6246) during isothermal subtransus forging has been developed and demonstrated. A double truncated cone test geometry is isothermally deformed at subtransus temperatures to obtain microstructural information for a range of strains within a single specimen. A finite element modelling package is then employed to produce strain profiles, which correspond to the equivalent microstructural information generated from detailed backscattered SEM analysis and quantitative phase analysis. The effects of the forging temperature are also discussed to provide an understanding of the phase transformations in Ti-6246 at subtransus temperatures.</p></div>","PeriodicalId":100798,"journal":{"name":"Journal of Light Metals","volume":"2 3","pages":"Pages 185-195"},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1471-5317(02)00044-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72107002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
A review of microstructural computer models used to simulate grain growth and recrystallisation in aluminium alloys 用于模拟铝合金晶粒生长和再结晶的微结构计算机模型综述
Journal of Light Metals Pub Date : 2002-08-01 DOI: 10.1016/S1471-5317(02)00039-1
M. Miodownik
{"title":"A review of microstructural computer models used to simulate grain growth and recrystallisation in aluminium alloys","authors":"M. Miodownik","doi":"10.1016/S1471-5317(02)00039-1","DOIUrl":"https://doi.org/10.1016/S1471-5317(02)00039-1","url":null,"abstract":"","PeriodicalId":100798,"journal":{"name":"Journal of Light Metals","volume":"88 5 1","pages":"125-135"},"PeriodicalIF":0.0,"publicationDate":"2002-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77287727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 127
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