Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Hiroo Ohtani"'
Publikováno v:
ISIJ International. 35:1006-1012
Effects of deformation in unrecrystallized austentie region on bainite microstructure were investigated in low carbon Nb-B bearing steels. Particular emphases were placed on the variation of the morphology of bainitic ferrite in isothermally transfor
Publikováno v:
Metallurgical and Materials Transactions A. 25:1981-1989
Morphology of bainite and Widmanstatten ferrite in various steels has been investigated by means of microstructural and surface relief observations. It was shown that upper and lower bainite should be classified by ferrite morphology,i.e., lathlike o
Autor:
Hiroo Ohtani, Takahiro Kushida
Publikováno v:
Tetsu-to-Hagane. 80:263-269
Publikováno v:
Metallurgical Transactions A. 21:877-888
Morphology of low-carbon bainite in commercial-grade high-tensile-strength steels in both isothermal transformation and continuous cooling transformation is lathlike ferrite elongated in the 〈11l〉b direction. Based on carbide distribution, three
Publikováno v:
Tetsu-to-Hagane. 76:1512-1519
Autor:
Yoshihiko Kamada, Hiroo Ohtani
Publikováno v:
Tetsu-to-Hagane. 76:97-104
Autor:
Hiroo Ohtani
Publikováno v:
Materials Science and Technology
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::823790263be2fc7604211214c09cd154
https://doi.org/10.1002/9783527603978.mst0064
https://doi.org/10.1002/9783527603978.mst0064
Publikováno v:
Journal of Materials Science Letters. 10:364-366
In this work the effect of direct-quench pocessing on the delayed fracture of high-strength steel has been investigated from the standpoint of impurity reduction
Autor:
Hiroo Ohtani, Watanabe Seiichi
Publikováno v:
Tetsu-to-Hagane. 66:506-513
Publikováno v:
Metallurgical Transactions A. 7:1123-1131
It is shown that the addition of 0.1 pct Ti to a low carbon Ni-Cr steel can eliminate most of the susceptibility to temper embrittlement due to both step cooling and isothermal aging. The mechanism by which Ti acts is complex and not yet clear. It su