Investigation on Hot Workability of Ti-37 At Pct Nb Alloy Based on Processing Map and Microstructural Evolution

2021 ◽  
Author(s):  
Dong Sun ◽  
Yanqiu Zhang ◽  
Shuyong Jiang ◽  
Junbo Yu ◽  
Bingyao Yan
Keyword(s):  
Microstructural Evolution ◽  
Processing Map ◽  
Hot Workability

Hot workability, constitutive model and processing map of 3Cr23Ni8Mn3N heat resistant steel

Vacuum ◽  
2019 ◽  
Vol 165 ◽  
pp. 324-336 ◽  
Author(s):  
Zhongman Cai ◽  
Hongchao Ji ◽  
Weichi Pei ◽  
Xuefeng Tang ◽  
Xiaomin Huang ◽  
...  
Keyword(s):  
Constitutive Model ◽  
Processing Map ◽  
Resistant Steel ◽  
Hot Workability ◽  
Heat Resistant Steel ◽  
Heat Resistant

Hot Workability Map for Near-α Titanium Alloy Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.7Nd

2012 ◽  
Vol 482-484 ◽  
pp. 1453-1456
Author(s):  
Ming Man Li ◽  
Qui Jian Xun ◽  
Shang Zhou Zhang
Keyword(s):  
Titanium Alloy ◽  
Dynamic Recrystallization ◽  
Power Dissipation ◽  
Processing Map ◽  
Flow Instability ◽  
Shear Bands ◽  
Hot Workability ◽  
Adiabatic Shear Bands ◽  
Β Phase ◽  
Power Dissipation Efficiency

The characterizations of hot working behavior of a near-α titanium alloy using the approach of processing maps are described. Processing map in the α+β region exhibit a domain of the globularization process of lamellar structure and α dynamic recrystallization with a power dissipation efficiency of 0.6-0.9. In the β region the map exhibited a domain centered around 1060°C and 0.1 s-1with a power dissipation efficiency of 0.76 where the β phase undergoes dynamic recrystallization. At higher strain rate flow instability occurs in the α+β region due to adiabatic shear bands formation as well as in the β region due to flow inhomogeneity of β phase.

Optimization of the hot workability for an extrude AZ80 Mg alloy using the processing map and Kriging meta-model

2015 ◽  
Vol 16 (6) ◽  
pp. 1149-1156 ◽  
Author(s):  
Sang Kyun Oh ◽  
Kwang Ki Lee ◽  
Young-Sang Na ◽  
Chang Hee Suh ◽  
Yun-Chul Jung ◽  
...  
Keyword(s):  
Processing Map ◽  
Mg Alloy ◽  
Hot Workability ◽  
Meta Model

Influence of processing parameters on hot workability and microstructural evolution in a carbon–manganese–silicon steel

2015 ◽  
Vol 88 ◽  
pp. 567-576 ◽  
Author(s):  
M. Arvinth Davinci ◽  
Dipti Samantaray ◽  
Utpal Borah ◽  
Shaju K. Albert ◽  
A.K. Bhaduri
Keyword(s):  
Microstructural Evolution ◽  
Processing Parameters ◽  
Silicon Steel ◽  
Hot Workability

Processing Map and Microstructural Evolution of Isothermal Compressed an Al-Mg-Si-Cu-Zn Alloy

2016 ◽  
Vol 877 ◽  
pp. 575-580
Author(s):  
Li Zhen Yan ◽  
Yong An Zhang ◽  
Bai Qing Xiong ◽  
Zhi Hui Li ◽  
Xi Wu Li ◽  
...  
Keyword(s):  
Strain Rate ◽  
Microstructural Evolution ◽  
Hot Deformation ◽  
Deformation Temperature ◽  
Processing Map ◽  
Flow Behavior ◽  
Processing Condition ◽  
Electron Back Scatter Diffraction ◽  
Microstructure Observation ◽  
Hot Rolled

The hot deformation behavior of an Al-0.92Mg-0.78Si-0.20Cu-0.60Zn alloy was studied by isothermal compression in the temperature range from 350 to 500 oC with strain rates of 0.01-10s-1 on Gleeble-1500 thermo-mechanical simulator. The microstructural evolution during hot deformation was investigated by electron back-scatter diffraction (EBSD). The results show that the strain rate and deformation temperature have significant influence on flow behavior, and the flow stress increases with increasing strain rate and decreasing deformation temperature. Processing map at the strain of 0.7 is obtained and exhibits three peak efficiency domains (380-420 oC at 0.01s-1, 480-500 oC at 0.01s-1 and 450-500 oC at 0.1-0.32s-1). According to the processing map and microstructure observation, the optimized processing condition of hot deformation for the alloy is at 450-500 oC and strain rate of 0.1-0.32s-1. The homogenized ingot is hot rolled at 480 oC with a strain rate of 0.1s-1 based on optimized deformation parameters. The fraction of high-angle grain boundary is 35.2%, which is in accord with microstructure after hot deformed at 500 oC with a strain rate of 0.1s-1.

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