Open AccessEffect of extrusion routes on thermal stability of pure titanium processed by equal channel angular pressing
Author(s) -
Hongfei Wang,
Chunyan Ban,
Tipeng Qin,
Nannan Zhao,
Sitong Liu,
Yiyao Kang,
Jianzhong Chen
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/768/2/022020
Subject(s) - materials science , extrusion , pressing , indentation hardness , thermal stability , recrystallization (geology) , electron backscatter diffraction , thermal , composite material , titanium , severe plastic deformation , metallurgy , microstructure , thermodynamics , chemical engineering , paleontology , physics , engineering , biology
Thermal stability of samples deformed by equal channel angular pressing (ECAP) using route B C and B 135 was studied. The new route B 135 was developed by defining 135° clockwise rotation of samples in each pass. After ECAP processing, samples were heat treated at different temperatures for a period of time. The effect of the two different routes on thermal stability of the ECAPed samples was investigated in detail. Electron backscatter diffraction was used to detect the processes of both recovery and recrystallization during thermal processing. Also, the effect of extrusion route on thermal stability of the deformed samples was further investigated by microhardness measurements.