Characterization of the Surface Integrity induced by Hard Turning of Bainitic and Martensitic AISI 52100 Steel
Artikel i vetenskaplig tidskrift, 2012

Depending on the process parameters and the tool condition, hard turned surfaces can consist of a “white” and a “dark” etching layer having other mechanical properties compared to the bulk material. X-ray diffraction measurements revealed that tensile residual stresses accompanied with higher volume fraction of retained austenite are present in the thermally induced white layer. While compressive residual stresses and decreased retained austenite content was found in the plastically created white layer. The surface temperature was estimated to be ~1200 C during white layer formation by hard turning.

Hard machining

X-ray diffraction

White layer

Surface integrity

Scanning electron microscopy


Seyed Hosseini

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Kristina Ryttberg

SKF Group

Jacek K Kaminski

Chalmers, Material- och tillverkningsteknik, Tillverkningsteknik

Uta Klement

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Procedia CIRP

2212-8271 (eISSN)

Vol. 1 1 494 - 499