Subproject B05

Influence of Deformation Induced Martensite Formation on the Mechanical Properties of Metastable Austenite

The goal of this project is the improvement of the fatigue properties from the LCF to the VHCF regime of metastable austenitic Cr-Ni-steels due to deformation induced martensite formation as a consequence of defined near surface machining processes. Besides surface hardening and residual stress state, microstructural sizes like volume fraction, thickness, and distribution of the martensite will be studied in detail. The microstructural parameters will be quantified by light- and electron-microscopical as well as
x-ray methods and their influence will be evaluated by electrical and magnetic in situ measurements.

Principal Investigator:

Prof. Dr.-Ing. Tilmann Beck
Dr.-Ing. Marek Smaga

Scientific Staff:

Dipl.-Ing. (FH) Annika Boemke

Technical Staff:

Hendrik Rüters

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Last Change: February 22th 2019