J. Neges et al., ON THE 45-DEGREES EMBRITTLEMENT OF TUNGSTEN SHEETS, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 196(1-2), 1995, pp. 129-133
45 degrees fracture in rolled sheets of W and Mo is caused by alignmen
t of the cleavage planes in the rolling texture. 45 degrees embrittlem
ent is caused by the nucleation of critical cracks at isolated grains
formed by recrystallization of weak secondary components of the textur
e.