Evaluation of Temper Embrittlement of 30Cr2MoV Rotor Steels Using Electrochemical Impedance Spectroscopy Technique

Table 2

The FATT₅₀ values of different rotor samples.

Sample	Original state	Heat-treated state	Difference
41	67.5	95.6	28.1
42	198.7	211.7	13
43	103.6	142.2	38.6
44	235	275.4	40.4
A2	82	127.1	45.1
A3	−70.9	−54.1	16.8