Open AccessA statistical model to predict the steady-state creep rate
Author(s) -
Jingtian Li,
Jianlu Wang,
Zhang Bang-Qiang,
Ximing Rong,
Ning Xi-Jing
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.028101
Subject(s) - creep , steady state (chemistry) , work (physics) , materials science , diffusion , thermodynamics , experimental data , measure (data warehouse) , statistical model , mechanics , statistical physics , computer science , statistics , physics , composite material , chemistry , mathematics , database
For a long time, empirical formulars have been used to predict the steady-state creep rate due to lack of clear microscopic description of the mechanism, which frequently leads to unreliable predictions. In this work, a statistical model of single atom developed recently is used to predict the steady-state creep rate at an atomic diffusion level. To test the model, we measure the creep rates of three kinds of materials, i.e., 42CrMoA, 2Cr12Ni, and 1Cr12Mo, and collect the experimental data of other materials, such as IN738LC and K435. The results show that our theoretical predicts are in good agreement with the experimental results.