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Comparison of damage development depending on the local microstructure in low alloyed Al-TRIP-steels, IF steel and a DP steel

  • Julia Imlau , Wolfgang Bleck and Stefan Zaefferer
Published/Copyright: June 11, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 100 Issue 4

Abstract

A study of the microstructural effects on the void initiation and crack growth in aluminium alloyed TRIP (transformation induced plasticity) steels has been conducted. Understanding of this microstructural dependency of the crack development is necessary to increase the failure limit and the energy absorption rate of the material.

Different microstructures in terms of phase volume fractions and spatial arrangement of these phases have been obtained by annealing. Additionally, different austenite stabilities, both geometrically as well as chemically based, have been obtained. First the macroscopic mechanical properties are linked to the microstructure. Furthermore, different characteristic prestraining levels are subsequently correlated to the microstructural damage evolution by observation of the samples with backscatter electron diffraction-based orientation microscopy in a high resolution scanning electron microscope.

The experiments result in a prediction of the most critical microstructural parameters when high damage tolerance is needed.

Keywords: TRIP-steel; Damage; Void nucleation; Crack growth; Mechanical properties
* Correspondence address, Prof. Dr.-Ing. Wolfgang Bleck Institute of Ferrous Metallurgy, RWTH Aachen University Intzestraße 1, D-52072 Aachen, Germany Tel.: +49 241 80 95 782 Fax: +49 241 80 92 224 E-mail:

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Received: 2008-8-26
Accepted: 2008-12-5
Published Online: 2013-06-11
Published in Print: 2009-04-01

© 2009, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110062
Keywords for this article
TRIP-steel; Damage; Void nucleation; Crack growth; Mechanical properties

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Prof. Dr. Günter Gottstein
  5. Feature
  6. Interface Migration in Metals (IMM):“Vingt Ans Après” (Twenty Years Later)
  7. Basic
  8. On the solute-defect interaction in the framework of a defactant concept
  9. A new model of dynamic recovery for Stage III of pure fcc metals without cross slip
  10. Sequence of distinct microyielding stages of the monocrystalline nickel-base superalloy CMSX-6 at high temperatures
  11. Comparison of texture evolution in fcc metals predicted by various grain cluster homogenization schemes
  12. Recrystallization initiated by low-temperature grain boundary motion coupled to stress
  13. Sub-grain boundary mobilities during recovery of binary Al–Mn alloys
  14. Concentration phase transition associated with grain boundary segregation in systems with restricted solubility
  15. Second-order faceting–roughening of the tilt grain boundary in zinc
  16. A model of grain boundary diffusion in polycrystals with evolving microstructure
  17. Linear measures for polyhedral networks
  18. Testing a curvature driven moving finite element grain growth model with the generalized three dimensional von Neumann relation
  19. Grain-boundary source/sink behavior for point defects: An atomistic simulation study
  20. Applied
  21. Deformation modes and anisotropy in magnesium alloy AZ31
  22. Control of recrystallisation texture and texture-related properties in industrial production of aluminium sheet
  23. The combined effect of static recrystallization and twinning on texture in magnesium alloys AM30 and AZ31
  24. Comparison of damage development depending on the local microstructure in low alloyed Al-TRIP-steels, IF steel and a DP steel
  25. Nanoindentation of Ti50Ni48Fe2 and Ti50Ni40Cu10 shape memory alloys
  26. Early detection of crack initiation sites in TiAl alloys during low-cycle fatigue at high temperatures utilizing digital image correlation
  27. Superplastic failure mode in ultrafine grained magnesium alloy AZ31
  28. High temperature magnetic strengthening in iron-based alloys: Magnetic effects on deformation and fracture, revisited
  29. Notification
  30. DGM News
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