J. Kameda

TL;DR: In this article, the effect of microstructures on acoustic and magnetic Barkhausen signals has been investigated in a quenched and tempered steel and spheroidized steels with various carbon contents.

TL;DR: In this paper, the influence of intergranular impurity segregation on acoustic and magnetic Barkhausen signals induced during magnetization in an undoped nickel-chromium steel and doped steels with antimony, tin or phosphorus was studied.

TL;DR: In this paper, a kinetic model for ductile-brittle fracture mode transition has been developed, where brittle and ductile fracture are characterized in terms of thermally activated growth processes of tensile model I and shear mode II cracks, respectively.

TL;DR: In this article, the effect of neutron irradiation on solute segregation to grain or interfacial boundaries in several iron base alloys doped with P, Cu and/or C has been investigated using scanning Auger microscopy.

TL;DR: In this paper, fracture mechanics analyses, acoustic emission techniques, and fracture surface analyses by scanning Auger microscopy and X-rays were carried out to determine how segregated phosphorus, yield strength and grain size affect the equilibrium and growth characteristics of hydrogen-induced intergranular cracking in high strength steels.