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It is well known that titanium and some titanium alloys creep at ambient temperature, resulting in a significant fatigue life reduction when a stress dwell is included in the fatigue cycle. It is thought that localised time dependent plasticity in 'soft' grains oriented for easy plastic slip leads to load shedding and an increase in stress within a neighbouring 'hard' grain * Corresponding author E-mail address: yi.xiong@materials.ox.ac.uk (Yi Xiong) have a significant effect on stress redistribution to hard grain orientations during cold dwell fatigue. Author ContributionsThis work formed part of a larger testing campaign proposed by AJW and carried out at Diamond Light Source by YX, PK, CTN, DMC, CMM & AJW. PK oversaw preparation of test pieces and preliminary characterisation undertaken by YX, CMM and PK. CTN and PK setup and guided use of the ETMT system. YX, PK, DMC and AJW developed data analysis procedures. YX carried out crystal plasticity simulations supervised by ET who supplied the UMAT code. YX drafted the initial manuscript, with all authors contributing to and agreeing the final version.

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