Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Yasuhide Ohba"'
Publikováno v:
Tetsu-to-Hagane. 107:64-72
Publikováno v:
ISIJ International. 56:1973-1981
A study was carried out to observe inclusions during the secondary refining process of case-hardening steel to understand the factors to determine inclusion compositions. During the LF refining, in ...
Publikováno v:
The Minerals, Metals & Materials Series ISBN: 9783319721309
This study aimed to elucidate the effect of a sulfur addition on the formation and behavior of CaS inclusions in steel melts during a secondary refining process without a Ca-treatment. Samples were taken during production for two different steel grad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::786cd85fd86177721e37a5c8613120a2
https://doi.org/10.1007/978-3-319-72131-6_1
https://doi.org/10.1007/978-3-319-72131-6_1
Autor:
Yasuhide Ohba, Yuki Yamashita, Ko Ichiro Ohno, Takayuki Maeda, Masakata Shimizu, Koki Nishioka
Publikováno v:
Tetsu-to-Hagane. 95:531-540
Since there are many generation factors for surface cracks on steel products manufactured by the processes of continuous casting through billet rolling, it is important for their prevention to identify the process where the surface cracks are generat
Publikováno v:
ISIJ International. 48:350-354
Austenite grain refining in the surface layer of as-cast bloom is effective for the reduction of surface cracks in steel production. This study was carried out to clarify the influence of cooling rate on the as-cast austenite grain size and its growt
Publikováno v:
Tetsu-to-Hagane. 93:271-280
This study was carried out in order to make clear the crack generation mechanism of case-hardening steels.It was suggested from the average oxide particle radius around surface cracks of the rolled billets that most of the surface cracks should be ge
Autor:
Yasuhide Ohba
Publikováno v:
Materia Japan. 46:21-24
Publikováno v:
Tetsu-to-Hagane. 92:439-447
Publikováno v:
steel research international. 89:1700287
The aim of this study is to clarify the mechanism of low total oxygen (T.O) contents in high-Al containing steel grades. Steel samples are taken from a ladle during an LF-RH process, and the compos ...
Publikováno v:
steel research international. 88:1700147
A study is carried out to understand the CaS formation mechanism in an Al-killed high-S containing steel during the secondary refining process without a Ca-treatment. At the initial stage of the LF refining, CaS is formed on existing inclusions by th