Influences of Process Parameters to Microstructural Evolution in Thermal Deformation of GH4169 Alloy

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Qian, Fang^1 ; Wang, Zhongtang^2

School of Mechanical Engineering, Inner Mongolia University for Nationality, Tongliao

028000, China^1

School of Materials Science and Engineering, Shenyang Ligong University, Shenyang

110159, China^2

关键词: Equi-axed grains;    GH4169 alloys;    Grain groups;    High temperature;    Influence laws;    Micro-structure evolutions;    Process parameters;    Thermal deformation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/3/032047/pdf
DOI  :  10.1088/1757-899X/394/3/032047

来源: IOP

【 摘 要 】

It studied the organization form of GH4169 alloy which had been obtained with different temperatures, strain-rates, deformations and original grain sizes by the high temperature hot compression tests. Influence laws of process parameters to microstructure evolution during hot deformation were gotten. The results showed that the grain group was hybrid when the temperature below 940°C, while complete recrystallization happened above 1020°C. Uniform equiaxed grains had been gotten with the strain-rate below 0.01s-1, and temperatures between 980-1020°C.