Determination of fracture toughness from stretch zone width measurement in predeformed AISI type 4340 steel

The use of stretch zone width measuremen

The use of stretch zone width measurements in the determination of fracture toughness of low strength steels

✍ P. Doig; R.F. Smith; P.E.J. Flewitt 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 985 KB

Abstrxt-The ev~uation of fracture toughness from stretch zone measurements on test piece fracture surfaces using selective backscattered electron imaging in the scanning electron microscope is described. Results are compared with the initiation toughness values obtained using single specimen R curve