Acta Metallurgica Sinica (English Letters) >
Phase Field Simulation for Grains Evolution of 17-4PH Steel During Cyclic Heat Treatment
Received date: 2012-03-24
Revised date: 2012-07-28
Online published: 2013-03-14
Supported by
National Natural Science Foundation of China (No.51071061) and NSAF(No.11176011)
A phase field model is developed to simulate the grain evolution of 17-4PH steel during cyclic heat treatment (CHT). Our simulations successfully reproduce the grain morphologies of every CHT. In the process of every CHT, phase transformation recrystallization happens. The recrystallized grains appear mainly on the original grain boundaries. The average grain size of 13.2 μm obtained by 1040 ℃×1 h solution treatment for this experimental steel can be refined to 2.2μm after five CHT's. Furthermore, the effects of phenomenological parameters in our model are discussed.
Key words: Phase field model; Grain refinement; Recrystallization; 17-4PH Steel
Yuan YOU , Mufu YAN , Chengsong ZHANG . Phase Field Simulation for Grains Evolution of 17-4PH Steel During Cyclic Heat Treatment[J]. Acta Metallurgica Sinica (English Letters), 2013 , 26(2) : 183 -187 . DOI: 10.1007/s40195-012-0505-6
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