Acta Metallurgica Sinica (English Letters) >
Determination of the Observation Area for Metallographic Microstructure of GH4033 Superalloy in a Uniaxially Thermo-Mechanical Compression Experiment
Received date: 2014-03-26
Revised date: 2014-04-25
Online published: 2014-07-18
Based on two-dimensional (2D) rigid-plastic finite element (FE) method, the optimum observation area for metallographic microstructure and the influence of the height–diameter ratio on which were analyzed for the cylindrical samples with the diameter of 8 mm and different heights from 8 to 16 mm in nonuniform compressive experiments. It is shown that the representative metallographic observation area relevant to the applied deformation condition is located at about 0.835 of the radius from the center of the sample to the solder joint between the sample and the thermocouples. At the same time, the microstructure in that area is more appropriate as the height of the sample is 12 mm. The related parameters of GH4033 superalloy were adopted in the FE analysis, and the validity of this analysis was verified by the compressive experiments.
Fengli Sui , Yue Zuo , Jun Zhao , Baoguo Ma . Determination of the Observation Area for Metallographic Microstructure of GH4033 Superalloy in a Uniaxially Thermo-Mechanical Compression Experiment[J]. Acta Metallurgica Sinica (English Letters), 2014 , 27(3) : 494 -500 . DOI: 10.1007/s40195-014-0069-8
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