Table 1 The martensitic start temperature (Ms), martensitic finish temperature (Mf), austenitic start temperature (As), austenitic finish temperature (Af), transformation width (W) in heating/cooling process, magnetization difference (ΔM), rate (R) of the temperature shift by magnetic field in the cooling process and entropy change of complete transformation (L) for the bulk, powder and composites.
Ms (K) | Mf (K) | As (K) | Af (K) | W(K) Cooling/Heating | ΔM (Am2/kg) | R (K/T) | L (J·kg−1·K−1) | |
---|---|---|---|---|---|---|---|---|
bulk | 291.39 | 285.03 | 304.62 | 310.21 | 6.36/5.59 | 77.98 | 0.77 | 62.36 |
powder | 295.72 | 278.69 | 303.74 | 313.71 | 17.03/9.97 | 61.10 | 1.61 | 47.53 |
S31 | 297.78 | 282.93 | 306.09 | 316.38 | 14.85/10.29 | 43.49 | 1.36 | 31.53 |
S21 | 296.76 | 282.36 | 305.77 | 316.07 | 14.40/10.30 | 38.19 | 1.37 | 27.72 |
S11 | 297.86 | 283.38 | 306.97 | 316.38 | 14.48/9.41 | 28.98 | 1.43 | 21.88 |