Effect of Close-Packed Plane Boundaries in a Bain Zone on the Crack Path in Simulated Coarse-Grained HAZ of Bainitic Steel

Autor:	Yusaku Tomio, Yutaro Shintome, Hidenori Terasaki, Mitsuru Ohata, Koji Moriguchi, Yu-ichi Komizo
Rok vydání:	2015
Předmět:	Structural material Materials science Mechanics of Materials Bainite Metallic materials Metallurgy Metals and Alloys Charpy impact test Cleavage (crystal) Condensed Matter Physics Austenite grain Electron backscatter diffraction
Zdroj:	Metallurgical and Materials Transactions A. 46:2035-2039
ISSN:	1543-1940 1073-5623
DOI:	10.1007/s11661-015-2817-4
Popis:	Global effect of Bain-zone boundaries and the local effect of close-packed plane (CP) boundaries on the path of secondary cleavage cracks (observed on a fractured V-notch Charpy specimen) were visualized and discussed in simulated coarse-grained HAZ of bainitic steel. Microstructural unit map (Bain-zone map and CP map) was obtained by electron backscatter diffraction method for a prior austenite grain of a few hundred micrometers. Furthermore, a correlation between CP boundaries and sites that favored formation of the blocky martensite–austenite (M–A) constituent was confirmed. It was clarified that two crack deviation/local changing factors (CP boundaries and blocky M–A) are paired.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::53159cae47b3f5efa86a201d85c6206f https://doi.org/10.1007/s11661-015-2817-4 Zobrazit plný text záznamu Full text from SpringerLink