Dear all, Recently I am doing the full profile neutron refinement of an dual phase steel with GSAS software. After I entered a specific temperature, for example, 640C, the software automatically produced a group of default data. When I finished other parameter refinement, I noticed that the Uiso parameters of austenite and ferrite were about 0.021566 and 0.12593. If I set such two data as a same constant value 0.025, the component fraction will produce evidently. So, do you think I need to do further refinement for such two parameters before ouputting the component fraction and lattice parameter? or I should use the default Uiso parameter?
Thanks in advance! Pingguang
