Simulation of δ-phase precipitation behavior in hot compression deformation of inconel 718 superalloy

被引：0
|
作者：
Kong, Xiangwei [1 ]
Jin, Zhibo [1 ]
Liu, Gongyu [1 ]
Zhou, Fenglu [1 ]
Ma, Liang [1 ]
机构：
[1] Northeastern Univ, Sch Mech Engn & Automat, Shenyang, Peoples R China
来源：
MATERIALS RESEARCH EXPRESS | 2024年 / 11卷 / 02期
关键词：
delta phase precipitation; Ni-based superalloy; cellular automata; hot compression deformation; NI-BASED SUPERALLOY; DYNAMIC RECRYSTALLIZATION; KINETICS;
D O I：
10.1088/2053-1591/ad21af
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A model for delta-phase precipitation in Inconel 718 superalloy during hot working, grounded in experimental data, was developed. A Cellular Automata (CA) simulation platform was designed to simulate the precipitation of second-phase particles in the alloy. The delta-phase precipitation behavior of Inconel 718 alloy during hot aging and hot compression was simulated. The results revealed that during hot aging, delta-phase initially precipitated on grain boundaries as particles and short rods, followed by the formation of long needle-like delta-phase with similar growth direction within grains. During hot compression deformation, flat needle-like delta-phase gradually dissolved and transformed into short rods and granular forms dispersed around grain boundaries as thermal deformation temperature increased. The simulation results for delta-phase content, morphology, and distribution were in good agreement with experimental results, demonstrating the model's strong predictive potential for second-phase evolution.
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页数：10
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