Influence of quenching-tempering on the carbide precipitation of 2.25Cr-1Mo-0.25V steel used in reactor pressure vessels

Yafei Wang, Guangxu Cheng, Zaoxiao Zhang, Songyan Hu, Jianxiao Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The carbide precipitation of 2.25Cr-1Mo-0.25V steel is studied during the head-fabrication heat treatment process using gold replica technique, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and selected area electron diffraction (SAED). Shapes, structures and sizes of carbides before and after heat treatment are analyzed. The dissolution of strip-shaped carbides and the precipitation of granular carbides are confirmed. Amorphous films at the boundaries of carbides are observed by high-resolution transmission electron microscope (HRTEM), which is formed due to the electron irradiation under TEM.

Original languageEnglish
Title of host publicationDesign and Analysis
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791858943
DOIs
Publication statusPublished - 2019
Externally publishedYes
EventASME 2019 Pressure Vessels and Piping Conference, PVP 2019 - San Antonio, United States
Duration: Jul 14 2019Jul 19 2019

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume3
ISSN (Print)0277-027X

Conference

ConferenceASME 2019 Pressure Vessels and Piping Conference, PVP 2019
Country/TerritoryUnited States
CitySan Antonio
Period7/14/197/19/19

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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