Mechanistic Understanding of Crack Initiation in Carburised 316H Stainless SteelSubjected to Cyclic Loading

Andrew JamesPhD Researcher 2015-2019

Solid Mechanics Research Group

2D X-ray diffraction onsmall scale tensile samples

Phase-specific strain evolution

hkl-specific strain evolution

Above: Strain evolution measured in oxide.

Below: Bulk hkl information measured to inform mechanistic models

Above: Sample tested under monotonic loading Below: Loading rig used in experiment

Identification and classificationof small cracks Left: Magnified view of

ductile failure region

Right: One of the main surface cracks showing brittle failure in oxideAbove: Surface cracking

observed post test under SEM