TITLE

Applications of pattern recognition in aluminum alloy texture characterization

AUTHOR(S)
Liu, Guizhong; Rehbein, D. K.; Foley, James C.; Thompson, R. B.
PUB. DATE
May 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 509 Issue 1, p797
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This paper presents a methodology to extract texture information in Aluminum alloys using pattern recognition algorithm. The orientation of the samples can be obtained by the orientation Image Microscope (OIM) technique. The ISO DATA pattern recognition algorithm is implemented to classify the OIM data into different clusters. Based on the classification results, the probability density function (pdf) is estimated. Then, the pdf is expanded as a series of Legendre functions with coefficients, i.e., the orientation distribution coefficients (ODC) as texture parameters. Three of these ODC’s are of special interests, namely W400, W420, and W440. This paper includes results from ultrasonic NDE and this novel algorithm.—Ames Laboratory is operated for U.S. Department of Energy by Iowa State University under Contract W-7405-ENG-82. This work was supported by the Office of Basic Energy Sciences as a part of the Center of Excellence of the Synthesis and Processing of Advanced Materials. © 2000 American Institute of Physics.
ACCESSION #
6029046

 

Related Articles

  • Adaptive Image Fusion Scheme Based on Contourlet Transform and Machine Learning. Malik, M. H.; Gilani, S. A. M.; Anwaar-ul-Haq // International Review on Computers & Software;Jan2008, Vol. 3 Issue 1, p62 

    Adaptive image fusion scheme based on the combination of contourlet transform, Kernel Principal Component Analysis (K-PCA), Support Vector Machine (SVM) and Mutual Information (MI) is proposed. Contourlet is well suited to image fusion scheme because of its properties, such as localization,...

  • The Effect of Orientation on the Spall Strength of the Aluminium Alloy 7010-T6. Edwards, M. R.; Bourne, N. K.; Millett, J. C. F. // AIP Conference Proceedings;2002, Vol. 620 Issue 1, p523 

    Many polycrystalline alloys experience a pronounced anisotropy in their mechanical properties. This can operate on three levels, these being at the unit cell, the microstructural level (due to preferred orientation of the grain structure) or the meso-scale due to either phase distribution or...

  • Directionality in the Mechanical Properties of Spray Cast and Extruded 7XXX Series Aluminium Alloys. Salamci, Elmas // Turkish Journal of Engineering & Environmental Sciences;2003, Vol. 27 Issue 3, p169 

    Presents a study which investigated the texture mechanism of spray cast 7XXX series aluminum alloys. Description of the anisotropic behavior of the alloys; Chemical compositions of the alloys; Difference in mechanical properties between the transverse and longitudinal directions.

  • Increasing the Fine Structure Visibility of the Hinode SOT Ca ii H Filtergrams. Tavabi, E.; Koutchmy, S.; Ajabshirizadeh, A. // Solar Physics;Mar2013, Vol. 283 Issue 1, p187 

    We present an image processing technique, the improved OMC filter (also called Madmax), which selects maxima of convexities of intensity modulations of an image. The filter computes second derivatives of the image in multiple directions around each pixel. It is shown to be efficient for pattern...

  • The Anisotropy of Aluminum and Aluminum Alloys. Hosford, William F. // JOM: The Journal of The Minerals, Metals & Materials Society (TM;May2006, Vol. 58 Issue 5, p70 

    The anisotropy of textured aluminum is approximated by a yield criterion with an exponent of eight. The use of this criterion in metal-forming analyses has improved the understanding of the formability of aluminum and other metals. The effect of anisotropy on the limiting drawing ratio in...

  • Effects of short aging on thickening anisotropy of θ′ precipitate and mechanical properties of severe cold-rolled 2519A aluminum alloy plate. Xin-ming Zhang; Zhi-guo Gao; Yi-sheng Zhao // Journal of Materials Science;Mar2010, Vol. 45 Issue 5, p1401 

    The article discusses a study that performed short aging treatments to balance ultimate tensile strength (UTS) and ductility of severe cold-rolled (SCRed) 2519A aluminum alloy. A differential scanning calorimeter (DSC) was used to conduct experiments to identify an appropriate aging temperature....

  • Controllable 3D morphology and growth mechanism of quasicrystalline phase in directionally solidified Al–Mn–Be alloy. Kang, Huijun; Wang, Tongmin; Lu, Yiping; Jie, Jinchuan; Li, Xinzhong; Su, Yanqing; Guo, Jingjie // Journal of Materials Research;Nov2014, Vol. 29 Issue 21, p2547 

    Three-dimensional (3D) morphological evolution and growth mechanisms of primary I-phase particles have been investigated in directionally solidified Al–6Mn–2.5Be (wt%) alloy at a wide range of growth rates (100–1500 μm/s). At relatively low growth rates (100–600...

  • The evolution of texture and deformation anisotropy at an equal channel extruded aluminum 1050 alloy. Sussai, W. R.; Bolmaro, R. E.; Kliauga, A. M. // Materials Science Forum;2014, Vol. 783-786, p192 

    The aim of this work was to analyze the evolution of texture and the deformation anisotropy of a AA1050 after ECAP and further recrystallization. The initial material was processed by two different routes: the first set of samples came from a hot rolled band with a mixture of cube, copper and...

  • Formulation of anisotropic Hill criteria for the description of an aluminium alloy behaviour during the channel die compression test. Gavrus, A.; Francillette, H. // AIP Conference Proceedings;2007, Vol. 907 Issue 1, p321 

    During the last years the study of the plastic deformation modes and the anisotropic mechanical behaviour of aluminium alloys have been the subject of many investigations. This paper deals with a phenomenological identification of an anisotropic Hill constitutive equation of aluminium AU4G...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics