The core structure of <110> dislocations, locked in 35° directions, was observed by using high-resolution transmission electron microscopy. The observations revealed no evidence of climb decomposition. It was concluded that the dislocations were not locked by climb decomposition, but by threefold core spreading of the large screw component of 35° <110> dislocations. The <110> slip was more difficult than <111> slip because the <110> dislocations were locked along 2 directions, whereas <111> dislocations were locked only along the screw orientation.

The Locking of 35° <110> Dislocations in NiAl. N.Yang, Y.Q.Sun: Acta Materialia, 2004, 52[19], 5615-20