TITLE

Ultrasonic measurement of texture coefficient W[sub 400] in aluminum alloys

AUTHOR(S)
Man, Chi-Sing; Morris, James G.; Rehbein, David K.; Thompson, R. Bruce; Liu, Yansheng; Fan, Xingyan
PUB. DATE
May 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 509 Issue 1, p1645
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A recent study on the textures in strip-cast AA3105 aluminum alloy suggests that ultrasonic measurement of the texture coefficient W[sub 400] would provide a promising means for on-line monitoring of textures in this alloy. Ultrasonic measurement of W[sub 400] in aluminum alloys, however, has long been an outstanding research problem in nondestructive evaluation. In this paper we report our preliminary findings on the feasibility of using the velocity ratio k≡V[sub 33] [FRACTION SHAPE="CASE"][NUM]1[/NUM][DEN]2[/DEN][/FRACTION] (V[sub 31]+V[sub 32]) for measurement of W[sub 400] in strip-cast AA3105 alloy; here V[sub 33] denotes the speed of longitudinal wave propagating in the normal direction of a sample sheet; V[sub 31] and V[sub 32] are speeds of through-thickness shear waves with polarization in the rolling and transverse direction, respectively. Samples of a commercial strip-cast. AA3105 hot band were annealed and cold rolled under various conditions to simulate a broad range of texture conditions. The velocity ratio k and the texture coefficient W[sub 400] of these samples were measured by ultrasonics and by X-ray diffraction, respectively. Our preliminary results indicate that the data points for the k versus W[sub 400] plot fall along two parallel straight lines. Roughly speaking, the data points pertaining to samples which were sufficiently annealed fall on one line and those corresponding to samples which were sufficiently cold rolled fall on another. Possible implications of this finding on the broader problem of ultrasonic measurement of W[sub 400] in aluminum alloys are discussed. © 2000 American Institute of Physics.
ACCESSION #
6029208

 

Related Articles

  • Quantitative strain analysis in AlGaAs-based devices. Tomm, Jens W.; Gerhardt, Axel; Müller, Roland; Biermann, Mark L.; Holland, Joseph P.; Lorenzen, Dirk; Kaulfersch, Eberhard // Applied Physics Letters;6/9/2003, Vol. 82 Issue 23, p4193 

    We present a strategy for quantitative spectroscopic analysis of packaging-induced strain using both finite element analysis and band-structure calculations. This approach holds for a wide class of AlGaAs-based, and related, devices, among them high-power "cm-bars." The influence on the results...

  • Laser ablation initiated fast discharge for spectrochemical applications. Vinić, Milica L.; Ivković, Milivoje R. // Chemical Industry / Hemijska Industrija;2014, Vol. 68 Issue 3, p381 

    The results of an experimental study of the optical emission enhancement possibilities during the single pulse laser induced breakdown spectroscopy of the aluminum alloy are presented. This study is performed in air, argon and helium at different pressures with and without the additional fast...

  • Adsorption sites of an iron-aluminum catalyst for ammonia oxidation as studied by the IR spectroscopy of the adsorbed NO probe molecule. Isupova, L. A.; Budneva, A. A.; Kruglyakov, V. Yu.; Paukshtis, E. A. // Kinetics & Catalysis;Mar2009, Vol. 50 Issue 2, p264 

    The state of surface adsorption sites in the IK-42-1 oxide catalyst for ammonia oxidation depending on catalyst preparation conditions (the nature of raw materials and the temperature of calcination) was studied in this work with the use of the diffuse reflectance IR spectroscopy of the adsorbed...

  • EIS investigation of the deposition of trivalent chromium coatings on Al 6063 alloy. Yu, Hui; Chen, Bai; Shi, Xi; Wu, Hai; Li, Bin // Journal of Applied Electrochemistry;Feb2009, Vol. 39 Issue 2, p303 

    The influence of five variables (i.e. deposition temperature, time, bath pH, and concentrations of Cr3+ compound (KCr(SO4)2) and H3PO4) on the preparation of Cr3+ coating on Al 6063 alloy was investigated using AC impedance spectroscopy (EIS) in 3.5 wt% NaCl. The optimal conditions were...

  • Thermal oxidation induced during laser cleaning of an aluminium-magnesium alloy. Dimogerontakis, Th.; Oltra, R.; Heintz, O. // Applied Physics A: Materials Science & Processing;Nov2005, Vol. 81 Issue 6, p1173 

    During laser cleaning of metallic materials by pulsed lasers surface, modifications can be induced mainly by the transient thermal effect. In ambient conditions an oxidation of the cleaned surface can be detected. The aim of this work was to characterize this transient oxidation that can occur...

  • Microstructural investigation of aluminum alloys type "2024" for the aviation industry. Anghelina, Florina Violeta; Bratu, Vasile; Stoian, Elena Valentina; Popescu, Ileana Nicoleta // Advanced Materials Research;2015, Vol. 1114, p62 

    This paper presents experimental results revealed on the samples type 2024 aluminum alloy used in aeronautics. The results of microstructural and compositional investigations presented in this paper were performed on samples taken from 2024 Al alloy samples produced by ALRO Slatina. The main...

  • Microstructural Investigations on ATIG and FBTIG Welding of AA 2219 T87 Aluminum Alloy. Babu, A. V. Santhana; Giridharan, P. K.; Narayanan, P. Ramesh; Murty, S. V. S. Narayana // Applied Mechanics & Materials;2014, Issue 592-594, p489 

    Limitation in penetration depth is a concern in conventional TIG welding process. To improve penetration capability of TIG process, both Activated TIG (ATIG) and Flux Bounded TIG (FBTIG) are investigated in aluminum alloy AA 2219 T87. Undesirable arc wandering and cracking tendency are observed...

  • ULTRASONIC PHASED ARRAY INSPECTION EXPERIMENTS AND SIMULATIONS FOR AN ISOGRID STRUCTURAL ELEMENT WITH CRACKS. Roth, D. J.; Tokars, R. P.; Martin, R. E.; Rauser, R. W.; Aldrin, J. C.; Schumacher, E. J. // AIP Conference Proceedings;2/22/2010, Vol. 1211 Issue 1, p910 

    In this investigation, a T-shaped aluminum alloy isogrid stiffener element used in aerospace applications was inspected with ultrasonic phased array methods. The isogrid stiffener element had various crack configurations emanating from bolt holes. Computational simulation methods were used to...

  • Nonlinear ultrasonics for in situ damage detection during high frequency fatigue. Kumar, Anish; Torbet, Christopher J.; Jones, J. Wayne; Pollock, Tresa M. // Journal of Applied Physics;Jul2009, Vol. 106 Issue 2, p024904 

    In this paper, we report the use of the feedback signal of an ultrasonic fatigue system to dynamically deduce fatigue damage accumulation via changes in the nonlinear ultrasonic parameter. The applicability of this parameter in comparison to the resonant frequency for assessment of fatigue...

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