Shoji Goto

TL;DR: In this article, a detailed characterization of the WEL and the BEL in a pearlitic rail steel is carried out from micrometer to atomic scale to understand their microstructural evolution.

TL;DR: In this paper, an application of lamellar microstructure for developing ultra-high strength steel wires was studied and discussed based on the experimental results, the relationships between the strength increase and micro-structure development during the cold wire drawing were studied to reveal the strengthening mechanism.

TL;DR: In this article, the formation of deformation-induced vacancies in α-ferrite of cold-drawn pearlitic steel wire was quantitatively testified, and up to 10−5−10−4 vacancies were found.

TL;DR: By means of X-ray line profile analysis and positron lifetime spectroscopy, densities of deformation-induced defects in carbon-rich ferrite of a series of cold-drawn pearlitic steel wires with true strains (e) up to 5 are characterized.

TL;DR: It has been found that the three elements undergo mechanical mixing upon cold-drawing at large strains, where Mn and Cr exhibit a nearly homogeneous distribution throughout both ferrite and cementite, whereas Si only dissolves slightly in cementite.