The TMs of the sample (as shown in Fig. 3) fell as the PQA temperature increased. A main factor that affects TMs is the change in valence WIN 64338 concentration. As we annealed the same sample at different temperatures the valence electron concentration remained unaltered, thus the change in TMs came from other factors such as change in stress distribution at phase boundary, change in atomic ordering and grain size . The stress relief at grain boundary generally leads to fall in the transition temperature. On the other hand change in ordering causes change in the magnetization of the austenitic phase, causing austenitic phase with higher magnetism to stabilize. Thus austenitic phase with higher magnetism was more stable at lower temperature leading to fall in TMs , , , , ,  and . The scanning electron microscope result showed that average grain size remained unaltered upon annealing. The slight fall in TMs, despite fall in magnetism for the A-450 sample may be because of dominating effect of stress relief. The subsequent falls in A-550 and A-650 were outcome of combined effect of increase in magnetism of austenitic phase and stress relief in the system.