Kcv (type IV)
Т, С |
80С, h/r |
20ХГ2Т, h/r |
25Г2С, h/r |
25Г2С, TS furnace |
25Г2С, TS mill |
100 |
0,08 |
0,56 |
1,12 |
1,17 |
1,62 |
60 |
0,06 |
0,3 |
0,83 |
1,18 |
1,6 |
20 |
0,04 |
0,2 |
0,3 |
1,14 |
0,82 |
0 |
0,06 |
0,17 |
0,22 |
1,13 |
0,3 |
-20 |
0,03 |
0,13 |
0,14 |
1,07 |
0,16 |
-40 |
0,02 |
0,08 |
0,11 |
0,82 |
0,13 |
-60 |
0,02 |
0,07 |
0,08 |
0,36 |
0,1 |
-80 |
0,02 |
0,05 |
0,04 |
0,27 |
0,05 |
-100 |
0,01 |
0,04 |
0,04 |
0,23 |
0,05 |
Appendix 3 macrophotographs of fractures
Test temperature: +100С
Steel grade |
KCV (type IV) |
KCU (type I) |
80С, h/r |
|
|
25Г2С, h/r |
||
25Г2С, TS furnace |
||
25Г2С, TS mill |
||
Test temperature: + 60С
Steel grade |
KCV (type IV) |
KCU (type I) |
80С, h/r |
|
|
25Г2С, h/r |
||
25Г2С, TS furnace |
||
25Г2С, TS mill |
||
Test temperature: + 20С
Steel grade |
KCV ( type IV) |
KCU (type I) |
80С h/r, |
|
|
25Г2С, h/r |
||
25Г2С, TS furnace |
||
25Г2С, TS mill |
||
Test temperature: 0С
Steel grade |
KCV (type IV) |
KCU (type I) |
80С, h/r |
|
|
25Г2С, h/r |
||
25Г2С, TS furnace |
||
25Г2С, TS mill |
||
Test temperature: - 20С
Steel grade |
KCV ( type IV) |
KCU ( type I) |
80С, h/r |
|
|
25Г2С, h/r |
||
25Г2С, TS furnace |
||
25Г2С, TS mill |
||
Test temperature: - 40С
Steel grade |
KCV (type IV) |
KCU ( type I) |
80С, h/r |
|
|
25Г2С, h/r |
||
25Г2С, TS furnace |
||
25Г2С, TS mill |
||
Test temperature: - 60С
Steel grade |
KCV (type IV) |
KCU (type I) |
80С, h/r |
|
|
25Г2С, h/r |
||
25Г2С, TS furnace |
||
25Г2С, TS mill |
||
Test temperature: - 80С
Steel grade |
KCV (type IV) |
KCU (type I) |
80С, h/r |
|
|
25Г2С, h/r |
||
25Г2С, TS furnace |
||
25Г2С, TS mill |
||
Test temperature: – 100С
Steel grade |
KCV (type IV) |
KCU (type I) |
25Г2С, TS furnace |
|
|
25Г2С, TS mill |
||
