Formation and Interpretation of Micro Residual Stresses in Cold Deformed Brass Alloys

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The brass alloys CuZn10 and CuZn37 were cold deformed by uniaxial compression in steps of 5 % res. 10 % to 20 %. Using X-ray synchrotron radiation d versus sin2ψ-distributions were measured. All diagrams showed strong non-linearities which were furthermore different for different hkl. The amplitudes of the oscillations increase with increasing deformation but come to a saturation, for CuZn37 at approximately 10 % compression, for instance. The development of the hkl-dependent residual stresses and the oscillations could be related to different microstructures induced by cold deformation. The Voigt-model suits well to describe the oscillations in d-sin2ψ curves associated with the hot extrusion process which was used for the fabrication of the samples. Moreover, it is shown that additional information obtained from TEM and X-ray line profile analysis is necessary to reproduce the experimental oscillations of d versus sin2ψ-distributions measured in cold deformed samples.

Info:

Periodical:

Materials Science Forum (Volumes 524-525)

Edited by:

W. Reimers and S. Quander

Pages:

937-942

DOI:

10.4028/www.scientific.net/MSF.524-525.937

Citation:

B. Reetz and W. Reimers, "Formation and Interpretation of Micro Residual Stresses in Cold Deformed Brass Alloys", Materials Science Forum, Vols. 524-525, pp. 937-942, 2006

Online since:

September 2006

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$35.00

[1] V. Hauk: Structural and Residual Stress Analysis by Nondestructive Methods (Elsevier, Netherlands 1997).

[2] G.I. Taylor: J. Inst. Metals Vol. 62 (1938), p.307.

[3] S. Aris: Simulation von Textur und texturbedingten Kristallitmikrodehnungen kubischer Werkstoffe und Vergleich mit experimentellen Daten (phD-thesis, TU Berlin, Deutschland, 2000).

[4] B. Reetz, W. Reimers: Hot Extrusion of Brass Alloys. Part I (In preparation, Germany 2005).

[5] K. Holler, B. Reetz, K.B. Müller, A. Pyzalla, W. Reimers: Mater. Sci. Forum Vol. 426-432 (2003), p.3667.

[6] H.J. Bunge: Program System ODF-Analysis (Cuvillier Verlag, Deutschland 1993).

[7] T. Wroblewski, O. Clauß, H. -A. Crostack, A. Ertel, F. Fandrick, C. Genzel, K. Hradil, W. Ternes, E. Woldt: Nuclear Instruments & Methods in Physics Research A Vol. 428 (1999), p.2.

DOI: 10.1016/s0168-9002(99)00144-8

[8] Mc Cusker, L.B.; Von Dreele, R.B.; Cox, D.E.; Louer, D.; Scardi, P.: J. of Appl. Cryst. Vol. 32 (1999), p.36.

[9] B. Reetz, W. Reimers: Hot Extrusion of Brass Alloys. Part II (In preparation, Germany 2005).

[10] G. Sachs: Z. VDI Vol. 72 (1928), p.734.

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