Microstructure and Residual Stresses of Laser Structured Surfaces

Johannes Preußner; Sabine Oeser; Wulf Pfeiffer; André Temmler; Edgar Willenborg

doi:10.4028/www.scientific.net/AMR.996.568

Paper Titles

Evolution of Residual Stresses during Short Time Nitriding of 33CrMoV12-9 Steel Grade
p.544

Investigations of Residual Stress Distributions in Retained Austenite and Martensite after Carbonitriding of a Low Alloy Steel
p.550

Estimation of Cross-Sectional Residual Stress Distributionon Hardened Layer of Carburized Chromium-Molybdenum Steel by Electron Backscattering Diffraction Method
p.556

Effect of Preloading on Local Residual Stresses Induced by Laser Surface Hardening of Steel
p.562

Microstructure and Residual Stresses of Laser Structured Surfaces
p.568

Analysis of Thermal Effect on Residual Stresses of Broached Inconel 718
p.574

Study of Residual Stresses in Bimetallic Work Rolls
p.580

Analysis of Residual Stress in Stress Harps of Grey Iron by Experiment and Simulation
p.586

Residual Stresses of the As-Cast Mg-xCa Alloys with Hot Sprues by Neutron Diffraction
p.592

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 996Microstructure and Residual Stresses of Laser...

Microstructure and Residual Stresses of Laser Structured Surfaces

Abstract:

A new approach to structure metallic surfaces with laser radiation is structuring by remelting. In this process no material is removed but reallocated by melting. The laser power was adapted linearly to the increasing laser beam diameter for laser remelted (polished) samples. A carbon depleted area could be found close to the remelted zone accompanied with a local minimum in hardness. The surface residual stresses tend from tensile to compressive with increasing laser beam diameter/laser power and number of repetitions for laser structured and laser remelted samples. The residual stresses are a result of combined shrinkage (tensile) and transformation (compressive) stresses.

By email Full Text Pdf

You have full access to the following eBook

Read eBook

Info:

Periodical:

Advanced Materials Research (Volume 996)

Pages:

568-573

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.996.568

Citation:

Cite this paper

Online since:

August 2014

Authors:

Johannes Preußner*, Sabine Oeser, Wulf Pfeiffer, André Temmler, Edgar Willenborg

Keywords:

Microscopy, Microstructure, Steel, Structuring by Laser Remelting, X-Ray Diffraction (XRD)

Export:

RIS, BibTeX

Permissions:

Creative Commons CC BY 4.0

* - Corresponding Author

References

[1] Ostholt, R., Willenborg, E., Wissenbach, K. Laser polishing of metallic freeform surfaces Ostendorf, A.: Lasers in Manufacturing 2009: Proceedings of the 5th International WLT-Conference, LiM 2009, AT-Fachverlag, 2009, pp.397-401.

DOI: 10.2351/1.5062086

Google Scholar

[2] Pirch, N., Höges, S. and Wissenbach, K. 2006. Mechanisms of surface rippling during laser polishing. Proceedings of the 8th International Seminar on Numerical Analysis of Weldability. Graz-Seggau: 2006. pp.25-27.

DOI: 10.1007/bf03263451

Google Scholar

[3] A. Temmler, E. Willenborg, K. Wissenbach, Design Surfaces by Laser Remelting, Physics Procedia Lasers in Manufacturing 2011 - Proceedings of the 6th International WLT Conference on Lasers in Manufacturing, 2011, 12, Part A, 419-430.

DOI: 10.1016/j.phpro.2011.03.053

Google Scholar

[4] A. Temmler, E. Willenborg, K. Wissenbach, Proceedings of the 7th International Conference on MicroManufacturing: (ICOMM 2012); Evanston, IL, 2012, S. 298-305.

Google Scholar

[5] Kiedrowski T.; Willenborg E.; Hack, S.; Wissenbach K.: Generation of design structures by selective polishing of metals with laser radiation - Proceedings of the 3rd Int. WLT-Conference on Lasers in Manufacturing 2005, Munich, June (2005).

Google Scholar

[6] European Standard EN 15305: (2008).

Google Scholar

[7] E. Macherauch, P. Müller: Z. Angew. Phys. XIII (1961) 305–312.

Google Scholar

[8] according to EN ISO 14577-1: (2002).

Google Scholar

[9] J. Preußner, S. Oeser, W. Pfeiffer, A. Temmler, E. Willenborg, Int. J. Mater. Res., accepted for publication on Nov 15, 201, DOI: 10. 3139/146. 111027.

Google Scholar