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Nanoscale face-centered-cubic zirconium dispersed in omega zirconium 纳米级面心立方锆分散在欧米伽锆中
IF 1.2 4区 材料科学
Philosophical Magazine Letters Pub Date : 2022-05-23 DOI: 10.1080/09500839.2022.2077999
Xinu Tan, R. Qiu, Yushun Liu, Fengxian Bi, Jinlong Zhang, Boran Tao, Qing Liu
{"title":"Nanoscale face-centered-cubic zirconium dispersed in omega zirconium","authors":"Xinu Tan, R. Qiu, Yushun Liu, Fengxian Bi, Jinlong Zhang, Boran Tao, Qing Liu","doi":"10.1080/09500839.2022.2077999","DOIUrl":"https://doi.org/10.1080/09500839.2022.2077999","url":null,"abstract":"ABSTRACT In contrast to lamella-like face-centered cubic zirconium (FCC-Zr) distributed inside an α-Zr matrix, as repeatedly reported previously, dispersed and nanoscale FCC-Zr with lattice parameter a = 0.520 nm has been found inside lamella-like and blocky ω-Zr by transmission electron microscopy (TEM). The orientation relationship between the FCC-Zr and the ω-Zr obeys [001]FCC//[1 02]ω, (100)FCC//(11 0)ω. A possible phase transformation mechanism between FCC-Zr, α-Zr and β-Zr is discussed. This finding introduces a new possibility in phase transformations during the fabrication of Zr alloys, potentially enlightening the design of new high-performance Zr alloys.","PeriodicalId":19860,"journal":{"name":"Philosophical Magazine Letters","volume":"102 1","pages":"220 - 228"},"PeriodicalIF":1.2,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48146352","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
Effect of secondary rolling on the interfacial bonding strength and mechanical properties of Al/Mg/Al clad plates 二次轧制对Al/Mg/Al复合板界面结合强度和力学性能的影响
IF 1.2 4区 材料科学
Philosophical Magazine Letters Pub Date : 2022-04-22 DOI: 10.1080/09500839.2022.2065702
Xiang-Zhi Cao, Chunhua Xu, Yu Li, Xuecheng Cao, Ruizhi Peng, J. Fang
{"title":"Effect of secondary rolling on the interfacial bonding strength and mechanical properties of Al/Mg/Al clad plates","authors":"Xiang-Zhi Cao, Chunhua Xu, Yu Li, Xuecheng Cao, Ruizhi Peng, J. Fang","doi":"10.1080/09500839.2022.2065702","DOIUrl":"https://doi.org/10.1080/09500839.2022.2065702","url":null,"abstract":"ABSTRACT The effects of secondary rolling on the microstructure evolution and mechanical properties of Al/Mg/Al clad sheets have been investigated. The results indicate that a double-layer intermetallic compound (Mg2Al3 and Mg17Al12) forms and sandwiches the MgO film during the first rolling and annealing, while the sandwich structure shows a low peel strength owing to the intrinsic brittleness of intermetallic. However, a secondary rolling leads to a shear-induced breakage of the sandwich structure, whereupon the peel strength significantly increases from 1.3 N/mm to 12.7 N/mm on account of an effective bonding of the Mg/Al interface. The secondary rolling not only eliminates the influence of MgO on the interface, but also improves the bonding strength of the interface. Furthermore, the clad sheet can obtain an excellent elongation (21%) and remain of high interfacial strength (∼12 N/mm) after the recovery annealing.","PeriodicalId":19860,"journal":{"name":"Philosophical Magazine Letters","volume":"102 1","pages":"200 - 208"},"PeriodicalIF":1.2,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46512807","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
Dislocation multiplication and dynamics in an aluminium alloy 铝合金中的位错倍增和动力学
IF 1.2 4区 材料科学
Philosophical Magazine Letters Pub Date : 2022-04-22 DOI: 10.1080/09500839.2022.2065701
Tiantian Huang, Fei Liu, Zhiyi Liu, Guangyu He, Yangcheng Hu
{"title":"Dislocation multiplication and dynamics in an aluminium alloy","authors":"Tiantian Huang, Fei Liu, Zhiyi Liu, Guangyu He, Yangcheng Hu","doi":"10.1080/09500839.2022.2065701","DOIUrl":"https://doi.org/10.1080/09500839.2022.2065701","url":null,"abstract":"ABSTRACT A mechanism of dislocation multiplication is introduced. The surface of the Al20Cu2Mn3 phase in an Al alloy can act as a barrier to impede dislocation movement. When two dislocations with opposite Burgers vectors approach each other, dislocations can annihilate if the pair remains at a distance less than the critical distance for annihilation. A dislocation loop is then formed around the Al20Cu2Mn3 phase or dislocations interact with the loop forming a dislocation tangle, which can promote dislocation multiplication. The driving force for dislocation reproduction, the dislocation glide velocity and the rate of dislocation multiplication are discussed.","PeriodicalId":19860,"journal":{"name":"Philosophical Magazine Letters","volume":"102 1","pages":"209 - 219"},"PeriodicalIF":1.2,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59592410","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
Deformation mechanisms in the directionally solidified nickel-based CM247LC at room temperature 室温定向凝固镍基CM247LC的变形机理
IF 1.2 4区 材料科学
Philosophical Magazine Letters Pub Date : 2022-03-17 DOI: 10.1080/09500839.2022.2049908
Zhenhuan Gao, Peng Zhang, Q. Niu, Jiao Li, L. Nie, X. Gong, Xiaolong Song
{"title":"Deformation mechanisms in the directionally solidified nickel-based CM247LC at room temperature","authors":"Zhenhuan Gao, Peng Zhang, Q. Niu, Jiao Li, L. Nie, X. Gong, Xiaolong Song","doi":"10.1080/09500839.2022.2049908","DOIUrl":"https://doi.org/10.1080/09500839.2022.2049908","url":null,"abstract":"ABSTRACT After solutionizing and aging at 980°C for various durations, the compressive deformation behaviour and mechanisms of the directionally solidified nickel-based superalloy CM247LC are investigated at room temperature. Experimental results show that the yield strength decreases gradually from 991 ± 1.2–672 ± 7.5 MPa with increasing the γ′ precipitate size from 145 ± 2–604 ± 19 nm. Transmission electron microscope observations on the slightly deformed specimens reveal that, in contrast to previous researches, plastic deformation of all the specimens is controlled by strongly coupled dislocations cutting through γ′ precipitates. Based on these experimental results, the relationship between the yield strength and precipitate size is discussed.","PeriodicalId":19860,"journal":{"name":"Philosophical Magazine Letters","volume":"102 1","pages":"190 - 199"},"PeriodicalIF":1.2,"publicationDate":"2022-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45718978","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
Ex-situ study of diffusion in liquid Al–Cu melts under a transverse magnetic field using X-ray imaging X射线成像在横向磁场作用下Al–Cu液态熔体扩散的原位研究
IF 1.2 4区 材料科学
Philosophical Magazine Letters Pub Date : 2022-03-09 DOI: 10.1080/09500839.2022.2048111
Ying Liu, Wen-Chih Lin, Bangfei Zhou, Xianghui Guo, Hao Cai, T. Zheng, B. Ding, Y. Zhong, Lei Zhang
{"title":"Ex-situ study of diffusion in liquid Al–Cu melts under a transverse magnetic field using X-ray imaging","authors":"Ying Liu, Wen-Chih Lin, Bangfei Zhou, Xianghui Guo, Hao Cai, T. Zheng, B. Ding, Y. Zhong, Lei Zhang","doi":"10.1080/09500839.2022.2048111","DOIUrl":"https://doi.org/10.1080/09500839.2022.2048111","url":null,"abstract":"ABSTRACT Al–Cu melts were used to study interdiffusion under a transverse magnetic field (TMF) using X-ray imaging. A novel gravity-assisted automatic docking device was used to create a long capillary of the diffusion couple. Compared with the results acquired using energy-dispersive spectroscopy, X-ray imaging is more convenient and accurate to determine concentration profiles along long capillaries using the numerous gray value intensities in the imaging. Because a TMF can inhibit melt convection, the interdiffusion coefficient (D AlCu) was reduced after applying a TMF of 2 T. Our results demonstrate that the application of X-ray imaging is an efficient way to study ex-situ diffusion in liquid melts.","PeriodicalId":19860,"journal":{"name":"Philosophical Magazine Letters","volume":"102 1","pages":"151 - 159"},"PeriodicalIF":1.2,"publicationDate":"2022-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47625888","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
Modelling of cavity growth during the superplastic flow of a fine-grained Ti–6Al–4V titanium alloy processed by direct rolling 直轧细晶Ti-6Al-4V钛合金超塑性流动过程中空洞生长的模拟
IF 1.2 4区 材料科学
Philosophical Magazine Letters Pub Date : 2022-02-23 DOI: 10.1080/09500839.2022.2036380
Xin Wang, Ge Zhou, Chao Liu, Siqian Zhang, Haoyu Zhang, Feng Li, Lijia Chen
{"title":"Modelling of cavity growth during the superplastic flow of a fine-grained Ti–6Al–4V titanium alloy processed by direct rolling","authors":"Xin Wang, Ge Zhou, Chao Liu, Siqian Zhang, Haoyu Zhang, Feng Li, Lijia Chen","doi":"10.1080/09500839.2022.2036380","DOIUrl":"https://doi.org/10.1080/09500839.2022.2036380","url":null,"abstract":"ABSTRACT Ti–6Al–4V fine-grained plates were manufactured using a rolling method and then subjected to superplastic tensile tests at varying temperatures and strain rates on an AG 250KNE electronic tensile testing machine. The superplastic behaviours of the plates were also tested. A cavity-growth model was established and the changing laws of energy during cavity growth and microstructure evolution of superplastic deformation were predicted. The Ti–6Al–4V alloy possessed the maximum elongation rate of 886% at 840°C and a strain rate of 5 × 10−4 s−1. The strain-rate sensitivity index m for this alloy was 0.54. The mechanism of superplastic deformation was established to be strain-induced grain-boundary slip, and the mechanism of cavity growth to be plasticity-controlled cavity coalescence and growth.","PeriodicalId":19860,"journal":{"name":"Philosophical Magazine Letters","volume":"102 1","pages":"133 - 140"},"PeriodicalIF":1.2,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45635348","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
Orientation relationship of quasicrystalline approximate phase η-Al5(Mn,Cr) in AA5083 aluminium alloy AA5083铝合金准晶近似相η-Al5（Mn，Cr）的取向关系
IF 1.2 4区 材料科学
Philosophical Magazine Letters Pub Date : 2022-02-23 DOI: 10.1080/09500839.2022.2038802
Xiaoling Xiao, Hongwei Liu, Huilan Huang, Wenlong Chen, Yanfang Ma
{"title":"Orientation relationship of quasicrystalline approximate phase η-Al5(Mn,Cr) in AA5083 aluminium alloy","authors":"Xiaoling Xiao, Hongwei Liu, Huilan Huang, Wenlong Chen, Yanfang Ma","doi":"10.1080/09500839.2022.2038802","DOIUrl":"https://doi.org/10.1080/09500839.2022.2038802","url":null,"abstract":"ABSTRACT A quasicrystalline approximate monoclinic phase η-Al5(Mn,Cr) with a plate-like or rod-like morphology in AA5083 aluminium alloy was investigated using transmission electron microscopy. Several types of orientation relationships (ORs) between the η-Al5(Mn,Cr) phase and the α-Al matrix were observed and these ORs could be correlated with a rotation operation around the axis with an angle that is an integer times 18.5°. These multiple ORs were interpreted by utilizing an invariant deformation element model – a simplified version of three-dimensional invariant line strain analysis.","PeriodicalId":19860,"journal":{"name":"Philosophical Magazine Letters","volume":"102 1","pages":"178 - 189"},"PeriodicalIF":1.2,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45330077","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
A note on mixed-mode fracture by the smoothing gradient damage model 用平滑梯度损伤模型研究混合模式断裂
IF 1.2 4区 材料科学
Philosophical Magazine Letters Pub Date : 2022-02-23 DOI: 10.1080/09500839.2022.2041214
T. Bui, Chanh Dinh Vuong
{"title":"A note on mixed-mode fracture by the smoothing gradient damage model","authors":"T. Bui, Chanh Dinh Vuong","doi":"10.1080/09500839.2022.2041214","DOIUrl":"https://doi.org/10.1080/09500839.2022.2041214","url":null,"abstract":"ABSTRACT The objective of this technical note is to illustrate twofold. The first issue is devoted to the ability of the recently developed smoothing gradient-enhanced damage model (SGDM), which is associated with the modified von Mises equivalent strain in modelling mixed-mode fracture problems, in particular the common Nooru–Mohamed's test. We show that the developed approach works pretty well for this test, yielding appropriate structural damage response and crack paths for all three specimen sizes, i.e. and . The second issue is, in a similar manner, to discuss the less accuracy of another damage model, the localising gradient damage scheme recently studied by Shedbale et al. Int. J. Mech Sci 2021, 199:106410, in reproducing crack paths and structural responses for the same mixed-mode problem.","PeriodicalId":19860,"journal":{"name":"Philosophical Magazine Letters","volume":"102 1","pages":"141 - 150"},"PeriodicalIF":1.2,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46278886","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
Electric field influenced coordinate jump of the guiding centre and magnetotransport 电场对导引中心坐标跳跃和磁输运的影响
IF 1.2 4区 材料科学
Philosophical Magazine Letters Pub Date : 2022-02-16 DOI: 10.1080/09500839.2022.2152505
Jingjing Feng, Yang Gao, Q. Niu
{"title":"Electric field influenced coordinate jump of the guiding centre and magnetotransport","authors":"Jingjing Feng, Yang Gao, Q. Niu","doi":"10.1080/09500839.2022.2152505","DOIUrl":"https://doi.org/10.1080/09500839.2022.2152505","url":null,"abstract":"ABSTRACT Our studies formulate a classical theory to study the influence of in-plane electric field on electron-impurity scattering process and magnetotransport in a two-dimensional space, in the presence of a strong out-of-plane magnetic field. Our studies connect classical scattering and quantum Landau Level broadening, as will be reviewed in this report. We derived an electric current formula in agreement with the current derived from the Drude theory under a strong magnetic field. Our electric current formula is derived microscopically from the migration of the guiding centres at strong magnetic field regime . The electron-impurity scattering under electromagnetic field not only shifts the guiding centre coordinates X and Y, but also changes cyclotron radius R. The change of cyclotron radius R compensates the change of the electric potential energy during the scattering process. The broadening of cyclotron radius is a classical manifestation of Landau Levels broadening. Our conductivity derived from our current formula in the linear response regime results in the same as the current derived from Kubo current fluctuation theory, providing a special case of the fluctuation-dissipation theorem.","PeriodicalId":19860,"journal":{"name":"Philosophical Magazine Letters","volume":"102 1","pages":"417 - 434"},"PeriodicalIF":1.2,"publicationDate":"2022-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47687675","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
Experimental determination of effective atomic radii of constituent elements in CrMnFeCoNi high-entropy alloy CrMnFeCoNi高熵合金中组成元素有效原子半径的实验测定
IF 1.2 4区 材料科学
Philosophical Magazine Letters Pub Date : 2022-01-25 DOI: 10.1080/09500839.2021.2024290
T. Teramoto, Momoko Narasaki, Katsushi Tanaka
{"title":"Experimental determination of effective atomic radii of constituent elements in CrMnFeCoNi high-entropy alloy","authors":"T. Teramoto, Momoko Narasaki, Katsushi Tanaka","doi":"10.1080/09500839.2021.2024290","DOIUrl":"https://doi.org/10.1080/09500839.2021.2024290","url":null,"abstract":"ABSTRACT To elucidate the complex mechanism of solid-solution strengthening in high-entropy alloys (HEAs), it is necessary to determine the effective atomic radii of the constituent elements that are the sources of lattice strain. In the present study, the effective atomic radii of the constituent elements in CrMnFeCoNi HEA that are the basis of the atomic displacements, are evaluated from lattice parameters experimentally determined via θ–2θ X-ray diffraction measurements. The order of the evaluated atomic radii in the present study is different from that of the atomic radii determined via ab-initio calculations in previous studies. The results of the ab-initio calculations indicate a correlation between the yield stress of and the average atomic displacement in the HEA. However, no definite correlation is confirmed by the experimental results in the present study.","PeriodicalId":19860,"journal":{"name":"Philosophical Magazine Letters","volume":"102 1","pages":"100 - 110"},"PeriodicalIF":1.2,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45168080","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: 2
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