Textures and Microstructures最新文献_第9页

CALCULATION OF MICROSTRESSES IN TEXTURED POLYCRYSTALS WITH CUBIC CRYSTAL SYMMETRY 具有立方晶体对称性的织构多晶体微应力计算

Textures and Microstructures Pub Date : 1900-01-01 DOI: 10.1155/TSM.32.309

E. A. Mityushov, S. Berestova

引用次数: 0

TEXTURE ANALYSIS OF QUARTZITE BY WHOLE PATTERN DECONVOLUTION 石英岩全模式反褶积结构分析

Textures and Microstructures Pub Date : 1900-01-01 DOI: 10.1155/TSM.33.139

S. Matthies, L. Lutterotti, K. Ullemeyer, H. Wenk

引用次数: 4

A New Method for the Determination of Texture Functions From Incomplete Pole Figures—Comparison With Older Methods 一种从不完全极图中确定纹理函数的新方法——与旧方法的比较

Textures and Microstructures Pub Date : 1900-01-01 DOI: 10.1155/TSM.6.137

P. Houtte

引用次数: 29

A Forest Model of Latent Hardening and its Application to Polycrystal Deformations 一种潜在硬化森林模型及其在多晶变形中的应用

Textures and Microstructures Pub Date : 1900-01-01 DOI: 10.1155/TSM.14-18.1103

U. F. Kocks, P. Franciosi, M. Kawai

{"title":"A Forest Model of Latent Hardening and its Application to Polycrystal Deformations","authors":"U. F. Kocks, P. Franciosi, M. Kawai","doi":"10.1155/TSM.14-18.1103","DOIUrl":"https://doi.org/10.1155/TSM.14-18.1103","url":null,"abstract":"This paper means to assess latent hardening effects on large-scale polycrystal deformation on the basis of the dislocation theory of plastic flow and of a wide variety of experimental observations on single crystals. The qualifier large-scale is introduced to eliminate effects during the earliest stages of flow, where mono- and polycrystals behave differently: the authors will not consider easy glide in single crystals; and they will not consider the gradual transition, over perhaps ten times the elastic strain, to polyslip in polycrystals; or, for that matter, initial Lueders-type deformation in polycrystals. In terms of dislocation theory, they will consider the flow stress to mean the percolation limit of dislocations in areal glide. Dislocation theory will be used at a rather gross level. Experience has shown that many of the details of the interactions between dislocations and of their arrangement are of surprisingly little influence on macroscopic plastic behavior. They will present a latent hardening model that is based on the well established forest model of flow stress and strain hardening. They will present a latent hardening model that is based on the well established forest model of flow stress and strain hardening. They will then assess various pieces of experimentalmore » and theoretical evidence that limit the number and magnitude of the parameters and predict the direction in which they might depend on stacking-fault energy. Finally, they will summarize results obtained by polycrystal simulation in which the model was implemented. They show only marginal effects, and only in certain cases.« less","PeriodicalId":129427,"journal":{"name":"Textures and Microstructures","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124188829","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: 38

OPTIMAL CALCULATION OF ODF WITH THE CANONICAL NORMAL DISTRIBUTION ON THE ROTATION GROUP 旋转群上典型正态分布的odf的优化计算

Textures and Microstructures Pub Date : 1900-01-01 DOI: 10.1155/TSM.33.337

T. Savyolova, E. A. Davidzhan, T. Ivanova

引用次数: 9

popLA AN INTEGRATED SOFTWARE SYSTEM FOR TEXTURE ANALYSIS popa是一个用于纹理分析的集成软件系统

Textures and Microstructures Pub Date : 1900-01-01 DOI: 10.1155/TSM.14-18.1203

J. S. Kallend, U. F. Kocks, A. Rollett, H. Wenk

引用次数: 25

A VME BASED ACCUMULATION, CONTROL AND SUPERVISING SYSTEM FOR NEUTRON TEXTURE MEASUREMENTS 基于vme的中子织构测量积累、控制与监测系统

Textures and Microstructures Pub Date : 1900-01-01 DOI: 10.1155/TSM.33.329

A. Kirilov, J. Heinitz, M. L. Korobchenko, V. E. Rezaev, A. Sirotin

引用次数: 0

The Formation of Dislocation Structure and Nucleation ofRecrystallized Grains in an Aluminum Single Crystal 铝单晶中位错结构的形成及再结晶晶粒的形核

Textures and Microstructures Pub Date : 1900-01-01 DOI: 10.1155/TSM.14-18.611

J. F. Butler, M. Blicharski, Hsun Hu

{"title":"The Formation of Dislocation Structure and Nucleation ofRecrystallized Grains in an Aluminum Single Crystal","authors":"J. F. Butler, M. Blicharski, Hsun Hu","doi":"10.1155/TSM.14-18.611","DOIUrl":"https://doi.org/10.1155/TSM.14-18.611","url":null,"abstract":"strain free grains and their subsequent growth at the expense of the deformed matrix. These recrystalli.ation nuclei or newly formed grains usually emerge in regions ofhigh lattice curvature, where the orientation changes with a steep gradient from one matrix orientation to another. These regions were found first in a deformed Si-Fe single crystal to be consisted of finely banded structural elements, hence the name transition band (or rnicrobands) was given to these regions[I,2]. Later studies on heavily rolled copper and aluminum polycrystals also found similar regions oflarge lattice curvature believed to be the sites ofnucleation ofcube oriented grains[3,4]. However, the spatial distribution ofmicrostructure and orientation which develops in polycrystalline copper and aluminum after large reductions is very complex and has not at all been characterised. This complication adds to the uncertainties over the nature ofthe nucleation sites for recrystallised grains, and is particular for the formation of the cube oriented recrystallised grains in heavily deformed copper and aluminum that develops a strong cube texture upon recrystallisation. The present investigation was undertaken in an attempt to give further understanding on the origin of the cube texture in fcc metals. An aluminum single crystal with an initial orientation of (001)[110] was used. It is known that this orientation is unstable. Upon rolling deformation the crystal rotates about its 110] axis in the transverse direction (TD) toward the (112)[111 and (112)[ 1 111 orientations which are characteristic ofthe copper type rolling texture. Thedevelopment ofthe dislocationsubstructure inconnection with texturalchanges, as afunction ofstrain in channel die compression, and the orientation aspects ofnucleation duringrecrystallisation that leads to the formation ofthe recrystallisation texture, have been studied in considerable detail.","PeriodicalId":129427,"journal":{"name":"Textures and Microstructures","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114595407","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: 10

Lattice Preferred Orientation as an Indicator of a Complex Deformation History of Rocks 点阵优选取向作为岩石复杂变形史的指示

Textures and Microstructures Pub Date : 1900-01-01 DOI: 10.1155/TSM.33.45

K. Ullemeyer, K. Weber

{"title":"Lattice Preferred Orientation as an Indicator of a Complex Deformation History of Rocks","authors":"K. Ullemeyer, K. Weber","doi":"10.1155/TSM.33.45","DOIUrl":"https://doi.org/10.1155/TSM.33.45","url":null,"abstract":"The deconvolution of the deformation history of rocks is one of the main goals of texture analysis in geology. The frequent observation that the macroscopic structures are obliquely oriented with respect to the margins of the deformation zone gave rise to the hypotheses that the deformation path might be complex, and that the lattice preferred orientation of the rock-forming minerals should reflect such complicated deformation conditions as well. Hence, texture determinations of polyphase rock samples were carried out and the relationship of the mineral textures to the commonly used sample reference frame foliation–lineation, which is assumed to represent the principal axes of the bulk finite strain tensor, was investigated. It was confirmed that particular mineral textures are typical for different stages of the deformation path. Especially the quartz textures exhibit an uncommon but consistent deviation from the sample reference frame, which is consistent with respect to the geographical coordinates, too. Such a characteristic may be used to evaluate the direction of a large-scale horizontal shear component, which is known as the transpressive shear vector in the geological literature.","PeriodicalId":129427,"journal":{"name":"Textures and Microstructures","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116236780","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: 9

A Metallurgical Approach to the Cracking Resistance of Hot-Dip Galvanized Zinc Coatings 热镀锌锌涂层抗裂性能的冶金方法研究

Textures and Microstructures Pub Date : 1900-01-01 DOI: 10.1155/TSM.28.35

S. Lazik, C. Esling, M. Phillippe, J. Wegria, M. Dubois

引用次数: 2