On. Senkov et al., Effect of temperature and hydrogen concentration on the lattice parameter of beta titanium, MATER RES B, 36(7-8), 2001, pp. 1431-1440
The lattice parameter of body centered cubic (bcc) beta titanium was determ
ined as a function of temperature and hydrogen concentration using neutron
diffraction, In pure titanium, the lattice parameter a = 0.331 nm at 900 de
greesC and the thermal expansion coefficient kappa (T) = 13.8 X 10(-6) degr
eesC(-1) over the temperature range 900 degreesC to 1000 degreesC, The solu
tion of hydrogen in beta titanium is seen to expand the lattice but it has
little effect on the thermal expansion coefficient. The dependence of the l
attice parameter on atomic percent hydrogen was found to be linear over the
hydrogen concentration range 0 to 30 at.%, as expressed by the hydrogen-in
duced expansion coefficient K-H = 2.1 X 10(-4) nm/at.%H. (C) 2001 Elsevier
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