Texture Formation in Thin Tapes from Ni-Based Ternary Alloys with Cr, W, Mo and V

2011 ◽  
Vol 702-703 ◽  
pp. 908-911
Author(s):  
I.V. Gervasyeva ◽  
Dmitrii Rodionov ◽  
Yulia Khlebnikova

Texture, structure, and magnetic and mechanical properties of thin tape substrates fabricated of ternary nickel alloys with chromium, tungsten, molybdenum, and vanadium have been investigated. It has been shown that in Ni93.8Cr4.0Mo2.2, Ni88.5Cr6.2V5.3and Ni88.4Cr9.2W2.4 alloys a sharp cube texture can form, which is stable up to high annealing temperatures. In the Ni87.6Cr8.0Mo4.4alloy, other weak orientations are present, along with the strong cube component. The possibility of obtaining a sharp cube texture after primary recrystallization is controlled by the quantitative relationship between the texture components in a cold-rolled tape, which is determined by the method of orientation-distribution functions. Three alloys studied are non-magnetic at 77 K.

2007 ◽  
Vol 546-549 ◽  
pp. 347-350 ◽  
Author(s):  
Li Li ◽  
Tie Tao Zhou ◽  
Huan Xi Li ◽  
Chang Qi Chen ◽  
Qiu Lin Wu ◽  
...  

Texture evolution in Mg-13wt%Li-X alloy cold-rolled from 1.35 mm to 0.34 mm thickness was investigated, by obtaining pole figures and orientation distribution functions (ODFs). Punching tests were conducted to reveal the effect of texture nature on formability. It was found that: (1) the textures of the as-received sheet are characterized by α fiber texture, a γ fiber texture and a cubic texture in both cold-rolled and annealed conditions; (2) with thickness reduction though rolling, the intensity of the γ fiber texture continuously increases and finally the γ fiber texture connects into {111} tube texture, the texture of <11 0> orientation flows towards {223}<11 0> along α fiber, the cubic texture of {001}<100> turns into {035}<100>, while some grains concentrate at {011}<41 1> orientation; (3) good punching behavior of the cold-rolled sheet corresponds to the appearance of a well-developed γ fiber texture.


2011 ◽  
Vol 299-300 ◽  
pp. 127-130
Author(s):  
Yang Chen ◽  
Qi Mei Gao ◽  
Ni Tian

The rolling texture and its distribution along thickness direction in the Al alloy 6111 sheet cold rolled by synchronous Rolling and asynchronous rolling have been investigated with orientation distribution functions. The results show that the texture distribution is asymmetric on both sides of center layer of the sheet after cross shear rolling. The orientation densities of the main texture compounds on the slow roller side are higher, but are lower on the fast rolled side. The asymmetry of the texture distribution increases with improving the velocity ratio of asynchronous rolling.


2001 ◽  
Vol 35 (1) ◽  
pp. 1-22 ◽  
Author(s):  
B. K. Sokolov ◽  
I. V. Gervasyeva ◽  
D. P. Rodionov ◽  
Yu. V. Khlebnikova ◽  
I. N. Stepanova ◽  
...  

The effect of the rolling temperature on the deformation texture and the perfection degree of a cube texture in pure-nickel thin tape were investigated. The kinetics of primary recrystallization was studied on samples that had undergone rolling at different temperatures and the temperature of the onset of secondary recrystallization was determined. Regularities of the structure formation in the samples are discussed. It is established that the cube texture with the maximum sharpness is produced in the samples rolled at room temperature.


2013 ◽  
Vol 592-593 ◽  
pp. 366-369
Author(s):  
Vasile Danut Cojocaru ◽  
Isabelle Thibon ◽  
Doina Raducanu ◽  
Ion Cinca ◽  
Thierry Gloriant ◽  
...  

During the last decade the titanium alloys were extensively used in a variety of applications due to their good mechanical properties, high biocompatibility and corrosion resistance. β-type Ti alloys composed of Nb, Ta and Zr elements have received much attention, because they feature high specific strength, bio-corrosion resistance, no allergic problems and biocompatibility. A Ti-29Nb-9Ta-10Zr (wt.%) alloy was subjected to thermo-mechanical processing and testing. Two states were investigated: recrystallized and 80% cold-rolled. Data concerning phase structure and developed texture, expressed by Inverse Pole Figures (IPFs) and Orientation Distribution Functions (ODFs), was obtained and analyzed.


2013 ◽  
Vol 203-204 ◽  
pp. 105-110 ◽  
Author(s):  
Agnieszka Kurc-Lisiecka ◽  
Wojciech Ozgowicz ◽  
Wiktoria Ratuszek ◽  
Joanna Kowalska

The textures of cold-rolled AISI 304 austenitic steel were the object of the investigations. The austenite steel was deformed by cold-rolling to 20, 40 and 70% reduction. A significant amount of martensite, formed due to the strain induced (γ®a’) transformation, was detected in the deformed structure by applying magnetic and X-ray diffraction methods. Texture analysis was performed on the basis of the orientation distribution functions (ODFs) calculated from the experimental pole figures. The texture measurements of both phases were conducted from the center layers of the cold-rolled strip. In the case of metastable austenite AISI 304 steel the texture development was very complex because three processes were proceded simultaneously during the cold-rolling, namely: plastic deformation of the austenitic g-phase, strain induced phase transformation γ®a’ and deformation of the formed a’-martensite. These processes resulted in the presence of two phases in the structure of the steel with a definite crystallographic relationship and orientation changes of both phases with increasing of the deformation. Thus, the resultant deformation texture of the investigated steels is described by the austenite and martensite texture components. The rolling texture of γ-phase describes mainly orientations from the fiber α =<110>║ND and the major components of the martensite deformation texture are orientations from the fibers α1=<110>║RD and γ ={111}║ND.


2016 ◽  
Vol 117 (11) ◽  
pp. 1129-1137 ◽  
Author(s):  
Yu. V. Khlebnikova ◽  
D. P. Rodionov ◽  
I. V. Gervas’eva ◽  
T. R. Suaridze ◽  
L. Yu. Egorova

1980 ◽  
Vol 4 (1) ◽  
pp. 13-40 ◽  
Author(s):  
Hsun Hu

The cold-rolling and annealing textures of a deep-drawing phosphorus steel have been studied by the spatial orientation distribution of the crystallites. The characteristics of the orientation distribution functions of the as-cold-rolled and of the annealed sheets were closely examined. The observed features suggest that the annealing texture is originated by microband or transition-band nucleation, followed by the growth of recrystallized grains at the expense of the matrix deformation textures. The crystallite orientation distribution of the annealed sheet of the deep-drawing phosphorus steel is clearly different from that of the annealed sheet of deep-drawing aluminum-killed steels.


2004 ◽  
Vol 819 ◽  
Author(s):  
I. Baker ◽  
H. Chang ◽  
J. Li

AbstractWe have examined the effects of isothermal annealing, at a variety of temperatures, and directional annealing, under a range of conditions, on both primary recrystallization and secondary recrystallization in 90% cold-rolled 99.5% nickel of two different textures. The initial texture is shown to influence the rolling texture and, hence, the results of subsequent annealing. It was found that one alloy showed a cube texture after primary recrystallization, underwent abnormal grain growth upon annealing at high temperatures, and could be directionally (secondary) recrystallized to give large columnar grains. In contrast, the other alloy produce a weak cube texture after primary recrystallization, showed only normal grain growth upon annealing at higher temperatures, and could not be directionally annealed to produce columnar grains. The implications of these results are discussed for producing columnar grains.


2000 ◽  
Vol 14 (25n27) ◽  
pp. 3139-3144 ◽  
Author(s):  
A. TUISSI ◽  
R. MASINI ◽  
E. VILLA ◽  
J. E. EVETTS

CuNi, NiCr, NiV alloys and pure Ni have been processed to obtain metallic substrates for high critical current density YBCO film depositions. High purity alloys were prepared using plasma arc furnace and the material was cold rolled to low thickness tapes. For all the tapes the (100)[001] cube alignment was induced by a primary recrystallization heat treatment after heavy cold rolling (RABITS). Besides the cube texture a good substrate should be smooth, thin, strong, non magnetic, resistant to oxidation, cold workable and low cost. In this work mechanical, magnetic and oxidation resistance properties of the prepared textured substrates were measured and compared.


1971 ◽  
Vol 4 (4) ◽  
pp. 303-310 ◽  
Author(s):  
H. J. Bunge ◽  
J. Tobisch ◽  
W. Sonntag

Three-dimensional orientation distribution functions of the crystallites in copper sheets, cold rolled to different degrees of reduction, have been determined using neutron diffraction pole figures. The main features of the textures may be represented by the orientation `tube' already described in prior publications. Two ranges of rolling reduction can be distinguished, a lower one (30 to 50%) and a higher one (70 to 95%) the texture changes of which correspond to those calculated after the Taylor theory. In an intermediate range (50 to 70%) a different deformation mechanism occurs which leads to an intermediate (001) [110] texture component. It is supposed that anisotropic hardening may have occurred in this range.


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