Experimental Study of the Deformation Mechanisms in Textured Alpha-titanium Alloy Sheets
The initial microstructure, texture and deformation micromechanisms activated during uniaxial tensile tests of a T40 titanium alloy sheet is investigated experimentally. X-rays diffraction and transmission electron microscopy (TEM) in-situ tensile tests as well as post-mortem TEM observations were carried out. Texture measurements performed by X-rays diffraction indicate a typical strong cold rolling texture with basal poles (0001) tilted by+/-35° from the normal direction towards the transverse direction. As the tensile tests performed along the transverse direction (TD) and the rolling direction (RD) revealed a strong anisotropy and a strain rate sensitivity of the pure titanium sheets,in-situ TEM tensile tests (under angles of 0° and 90° with respect to the RD) were carried out to understand the micromechanisms, which control the deformation depending on the loading direction. The dislocation glide systems were determined as a function of the grain orientations in the textured T40.
Pure Titanium (Ti). texture transmission Electron Microscopy (TEM) plastic deformation dislocations
Vanessa VIDAL Yannick BALCAEN Florence PETTINARI-STURME Jo(e)l DOUIN Philippe LOURS Vincent VELAY Laurent ROBERT
Universite de Toulouse Mines Albi, ICA (Institut Clement Ader) Campus Jarlard, F-81013 Albi cedex 09 CEMES-CNRS 29, rue Jeanne Marvig ,BP 94347,31055 Toulouse cedex 04,France
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
1290-1293
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）