1、8272018( )810.5 201 1 2 32 T T/24 T/2 53 C67 84 ABC ADEF 9 10115 126 Fe 13 0.2863nm147 -Fe -Fe 15 16 -Fe 1718 1928 A B 20K01 219 22 23 2410 25 2611 27 2812 2930 3113 A1A3AcmFe-Fe3C 32 33 3414 35 361537 38 39 401 201 45A. B. C. D.2A. B. C. D.3 40Cr 40 CA. 40Cr C 40 B. 40Cr C 40C. 40Cr C 40 D. 40Cr C
2、404A.3B.C.D.5A. B.C. D.6A. B.C. D.7A. B.C. D.8A. B. C. D.9A. B. C. D.10A. B. C. D.11 XA. 2 B. 3 C. 4 D. 512 A A-B AA. A B B. AC. A B D.13A. B. C. D.414A.B.C.D. 15 CCTA. CCTB. CCT C. CCTD. CCT16 Fe PbA. Pb FeB. Fe PbC. Pb FeD. Fe Pb17 0.45wt.%A.93.27% B.41.56% C.57.23% D.67.30%18 110A. 6 B. 4 C. 8 D.
3、 1219A. B.C. D.20 111A.12 B.6 C.4 D.355 401234 2.0wt%5 Cu6 A B MN T1T2MN7 111 1102ab(111) (111) (111)68 Fe-W-C 1085oC 1200oC 1355oC 1700oCC 2wt.% W20wt.% Fe-W-C701 102103 1211000oC 900oC10%140kJ/mol 82 474 125 81 32 23 36 20 Ac1=735oC Ac3=845oC T10 Ac1=730oC Accm=875oC 181 20 HRC1520 HRC3540832 20 930oC+20h 1.2%0.3mm33 2 930oC 4h1.0% 1.0mm HRC535534 20 930oC+20h 930oC+4h780oC HRC606135 +4 46 202
