In Situ Investigation of Crystallographic Effects on Short Fatigue Crack Propagation From Surface Notches in a High‐Strength Alloy Structural Steel
Short fatigue cracks (SFCs) propagation in high‐strength alloy structural steel 34CrNi3Mo was investigated using in situ scanning electron microscopy and electron backscatter diffraction. Prefabricated notches with three initial nominal stress intensity factor range (Δ K ) were fabricated via focused ion beam. SF...