On the Development of Grain-Orientation-Dependent and Inter-Phase Stresses in a Super Duplex Stainless Steel under Uniaxial Loading

Abstract:

Article Preview

Microstresses due to intergranular and inter-phase interactions in an austenitic-ferritic super duplex steel (SAF 2507) under uniaxial compressive deformation have been studied by in-situ neutron diffraction experiments. Lattice strains of several hkl planes of austenite respective ferrite were mapped as a function of sample direction at a number of load levels during loading into the plastic regime and unloading. The analysis of the experimental results has shown that during loading both grain-orientation-dependent and inter-phase stresses were generated under plastic deformation that was inhomogeneous at the microstructural level. Residual stresses depending on the grain-orientation and phase have been found after unloading. The results also indicate stronger intergranular interactions among the studied hkl planes of austenite than those of ferrite.

Info:

Periodical:

Materials Science Forum (Volumes 524-525)

Edited by:

W. Reimers and S. Quander

Pages:

917-922

DOI:

10.4028/www.scientific.net/MSF.524-525.917

Citation:

R. L. Peng et al., "On the Development of Grain-Orientation-Dependent and Inter-Phase Stresses in a Super Duplex Stainless Steel under Uniaxial Loading", Materials Science Forum, Vols. 524-525, pp. 917-922, 2006

Online since:

September 2006

Export:

Price:

$35.00

[1] Johan J. Moverare and Manus Odén: Metallurgical and Materials Transactions Vol. 31A (1999), p.1557.

[2] A. Baczmański and C. Braham: Acta Materialia Vol. 52 (2004), p.1133.

[3] S. Harjo, Y. Tomota, P. Lukáš, D. Neov, M. Vrána, P. Mikula and M. Ono: Acta mater Vol. 49 (2001), p.2471.

[4] V. Hauk: Structure and Residual Stress Analysis by Nondestructive Methods. Elservier, (1997).

[5] Y.D. Wang, R. Lin Peng and R.L. McGreevy: Phil. Mag. Lett, Vol. 81 (2001), p.153.

[6] N. Jia, R. Lin Peng, Y.D. Wang,G. C. Chai, S. Johansson, G. Wang and P.K. Liaw. Submitted to Acta Mater, (2006).

[7] H.M. Ledbetter: Phys. Stat. Sol. A Vol. 85 (1984), p.89.

[8] G. Simmons and H. Wang: Single crystal elastic constants and calculated aggregate properties: a handbook. MIT Press, (1971).

[9] S. Harjo, Y. Tomota, M. Ono: Acta Mater Vol. 47 (1999), p.353.

[10] B. Clausen, T Lorentzen, M. A. M. Bourke and M. R. Daymond: Mater Sci Eng A Vol 259 (1999), p.17.

[11] R. Lin Peng, M. Odén, Y. D. Wang and S. Johansson: Mater. Sci. and Eng. A334 (2002), p.215.

In order to see related information, you need to Login.