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

Table 1

Chemical composition of 30Cr2MoV rotor steel (wt%).

Sample	P	C	Si	Mn	S	Cr	Ni	Mo	Cu	V	As	Sn	Sb
41	0.045	0.28	0.36	0.66	0.013	1.62	0.06	0.62	0.08	0.29	0.013	0.004	0.0013
42	0.107	0.3	0.37	0.69	0.014	1.65	0.05	0.73	0.07	0.29	0.013	0.004	0.0015
43	0.063	0.28	0.36	0.69	0.014	1.68	0.05	0.68	0.1	0.29	0.015	0.006	0.0019
44	0.204	0.3	0.37	0.69	0.015	1.66	0.05	0.75	0.1	0.29	0.015	0.007	0.002
A2	0.065	0.28	0.43	0.68	0.012	1.79	0.28	0.7	0.08	0.3	0.013	0.004	0.0012
A3	0.019	0.24	0.4	0.62	0.001	1.6	0.25	0.69	0.12	0.27	0.007	0.008	0.0015