The study on microscopic mechanical property of polycrystalline with SEM moiré method

► Gratings up to 5000 lines/mm on low carbon steel are fabricated with FIB. ► SEM moiré fringes can tell us whether the specimen has yielded. ► SEM moiré fringes are processed with random phase shifting algorithm. ► Strain fields around different grain boundaries are analyzed. ► The inhomogeneous strain is caused by slip.