Development of Substructure Non-Uniformity under Equal-Channel Angular Pressing

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By taking into account an interconnection between substructure non-uniformity and substructure anisotropy, a new approach to study the substructure non-uniformity is developed as applied to metal rods, subjected to Equal-Channel Angular Pressing (ECAP). The X-ray method of Generalized Pole Figures (GPF) was used for construction of distributions of substructure parameters. Some experimental data are presented, illustrating possibilities and efficiency of the used approach.

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Periodical:

Materials Science Forum (Volumes 561-565)

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Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

839-842

Citation:

M. Isaenkova et al., "Development of Substructure Non-Uniformity under Equal-Channel Angular Pressing", Materials Science Forum, Vols. 561-565, pp. 839-842, 2007

Online since:

October 2007

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$38.00

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25 50 75 100.

[20] [40] [60] [0] 0. 05 0. 1 0. 15.

[10] [20] [30] 0. 1.

[10] [20] [30] [1] 10 0. 01.

25 50 75 100 Dc, nm.

[20] [40] [60] [0] 0. 05 0. 1 0. 15 εc.

[10] [20] [30] 0. 1 ρc, 1014 m-2.

[10] [20] [30] [1] 10 0. 01 ν, % ν, % ν, % ν, % ν, % ν, % 1M 1M 1M 2M 2M 2M Fig. 3. Substructure parameters (D, ε, ρ) for M-region of Ti rods along axes <0001>; 1 and 2 ECAP passes.

DOI: https://doi.org/10.1107/s0108270199014560/bm1382sup1.cif

[10] [20] a.

[10] 200 0. 4 0. 8 1. 2 1. 6 β(0002), deg.

[10] [20] [30] b c ν, % ν, % ν.

[1] [2] Fig. 4. Distributions ν(β0002) for ECAP Zr rods, route C: (a) 1 pass; (b) 4 passes; (c) coldrolled(1) and annealed (480 o C) (2) cladding tube, Zr-1%Nb. -0. 3 0. 3 ∆c/cav.

[4] [8] [0] [4] [8] ν, % -0. 15 0. 15 ν, % a b.

Fig. 5. Distributions ν(∆c/cav): (a) ECAP Zr rod, 1 pass; (b) cold-rolled cladding tube, Zr-1%Nb.