TY - JOUR
T1 - Fatigue striation formation in an Fe-3%Si alloy - effects of crystallographic orientation and neighbouring grains
AU - Shimojo, Masayuki
AU - Uchida, Y.
AU - Turuoka, S.
AU - Higo, Y.
PY - 1999/2
Y1 - 1999/2
N2 - In order to know the criterion of fatigue striation formation, fatigue fracture surfaces and crack paths were investigated in Fe-3%Si single and bicrystals having various crystallographic orientations. On single crystals, striations were formed when the loading direction was close to a 〈110〉 direction. In this direction, the crack grew perpendicular to the loading direction. When the loading direction was near a 〈111〉 direction and the crack grew along an inclined plane, no striations were observed. Even in this orientation, when the crack grew perpendicular by necessity using bicrystals, striations were observed. This suggests that striations are not formed on a special crystallographic plane, but are formed when the fatigue crack plane is perpendicular to the loading direction regardless of crystallographic orientation.
AB - In order to know the criterion of fatigue striation formation, fatigue fracture surfaces and crack paths were investigated in Fe-3%Si single and bicrystals having various crystallographic orientations. On single crystals, striations were formed when the loading direction was close to a 〈110〉 direction. In this direction, the crack grew perpendicular to the loading direction. When the loading direction was near a 〈111〉 direction and the crack grew along an inclined plane, no striations were observed. Even in this orientation, when the crack grew perpendicular by necessity using bicrystals, striations were observed. This suggests that striations are not formed on a special crystallographic plane, but are formed when the fatigue crack plane is perpendicular to the loading direction regardless of crystallographic orientation.
UR - http://www.scopus.com/inward/record.url?scp=0032670794&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032670794&partnerID=8YFLogxK
U2 - 10.1046/j.1460-2695.1999.00150.x
DO - 10.1046/j.1460-2695.1999.00150.x
M3 - Article
AN - SCOPUS:0032670794
VL - 22
SP - 153
EP - 159
JO - Fatigue and Fracture of Engineering Materials and Structures
JF - Fatigue and Fracture of Engineering Materials and Structures
SN - 8756-758X
IS - 2
ER -