Physical interpretation of the microstructure for aged 12 Cr-Mo-V-W steel creep test samples based on simulation of magnetic incremental permeability

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:486

Article

Gupta, Bhaawan^1,2,3  Ducharne, Benjamin²  Sebald, Gael¹  Uchimoto, Tetsuya^1,3  Miyazaki, Takamichi⁴  Takagi, Toshiyuki^1,3 

[1] Tohoku Univ, ELyTMaX UMI 3757, CNRS Univ Lyon Tohoku Univ Int Joint Unit, Sendai, Miyagi, Japan

[2] Univ Lyon, EA682, LGEF, INSA Lyon, F-69621 Villeurbanne, France

[3] Tohoku Univ, Inst Fluid Sci, Sendai, Miyagi, Japan

[4] Tohoku Univ, Grad Sch Engn, Instrumental Anal Grp, Sendai, Miyagi, Japan

关键词: Magnetic incremental permeability;    Jiles-Atherton model;    Creep;    Micro magnetic non-destructive testing;   

DOI  :  10.1016/j.jmmm.2019.165250

来源: Elsevier

【 摘 要 】

Magnetic Incremental Permeability (MIP) being highly stress dependent proves to be very effective to evaluate materials non-destructively. In this article, modelling technique based on Jiles-Atherton model has been proposed to simulate the signature MIP butterfly loop for the 12 Cr-Mo-V-W creep test samples. Jiles-Atherton parameters imply physical interpretations. From these butterfly loops, a physical relation, based on the values of the J-A's parameters, with the microstructure such as precipitations, dislocations, Kernel Average Misorientation (KAM) has been investigated with experimental as well as simulation validations. It is especially observed that J-A's parameters are well correlated to the precipitation quantity and KAM.

【 授权许可】

Free