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Erschienen in:

2018 | OriginalPaper | Buchkapitel

Influence of Austenitizing Temperature and Time on Microstructure and Mechanical Properties of an YP460 Grade Crack Arrest Steel

verfasst von : Dan Chen, Wenqing Jiang, Songsong Xu, Naimeng Liu, Hao Guo, Ye Cui, Yang Zhang, Zhongwu Zhang

Erschienen in: TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings

Verlag: Springer International Publishing

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Abstract

The influence of austenitizing temperature and austenitizing holding time on the microstructure and mechanical properties of a YP460 grade crack arrest steel was investigated. The first group specimens were austenitized at several temperatures ranging from 900 to 950 °C followed by water cooling. The second group specimens were austenitized at 900 °C with austenitizing holding time from 0.25 to 5 h followed by water cooling. Microstructure was characterized through optical microscopy. Tensile properties, hardness and plane strain fracture toughness of all these materials were determined and correlated with the microstructure. The results indicated that the austenitizing temperature influences the volume fraction of bainite and ferrite and then the mechanical properties. The volume fraction of bainite and ferrite and grain size are also affected by austenitizing time.

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Titel: Influence of Austenitizing Temperature and Time on Microstructure and Mechanical Properties of an YP460 Grade Crack Arrest Steel
verfasst von: Dan Chen
Wenqing Jiang
Songsong Xu
Naimeng Liu
Hao Guo
Ye Cui
Yang Zhang
Zhongwu Zhang
Verlag: Springer International Publishing
Buch: TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings
Print ISBN: 978-3-319-72525-3

Electronic ISBN: 978-3-319-72526-0

Copyright-Jahr: 2018
DOI: https://doi.org/10.1007/978-3-319-72526-0_13

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