What type of titanium plate and their performance is heterosexual cases

Heterosexual materials should reflect on the various mechanical properties of the index . However , relying on a single common performance index obtained by uniaxial tensile test , the material does not reflect whether the opposite sex. It needs to reflect whether the material has sex with another performance index . This index is often called plasticity than the value of their implications , called thick anisotropy index .
As to eb and et denote uniaxial tensile strain specimen width and thickness strain to deb and det represents an increase of these two strains , the current general there are two thick , that R anisotropy index value method = eb / et, r = deb / det
Tests showed that the vast majority of the material R is reduced with increasing tensile strain variables , it is generally used for a certain stretch the value of variables to be represented . Eb steel for example , is required to take the time e1 = 20% / et Fig. Thus ,titanium standard parts R can only be expressed as a performance index of the material , the plastic deformation of the plate can not be used , although a given calculation . A large number of experiments show that , r is at least in the uniform deformation stage is basically unchanged . Titanium case is true . According to the observation of the specimen and calculated titanium opposite case is as follows:
A thick anisotropic
Defined above, in a consistent way if the tensile properties of the test piece in the thickness direction of the plate surface properties of words within the thickness of anisotropy index r = 1. However, tests showed that the titanium r greater than 1 , indicating that some of the more difficult to change the thickness of the titanium .
2 , opposite the inner surface
Titanium addition to the performance properties of the sheet in the thickness direction of the distinct outer and inner surface plates of different properties in different directions , relative to the sheet along the rolling performance of a uniaxially stretched specimen preparation in different directions , the thickness of the anisotropic Index values ​​range.
3, the surface of the opposite sex
Some titanium uniaxial tensile specimen , after stretching its cross-section showing a significant curvature. This indicates that under the same elongation deformation , shrinkage of the width of the specimen in the thickness direction are not equal , i.e. the thickness of anisotropy index in the thickness direction of the change. This property , titanium axles known as the surface of the opposite sex in this sheet .
Actual measurements and calculations show that some two- thick titanium surface anisotropy index , its large difference of about 20% may be seen of this nature is sometimes the opposite sex can not be ignored .