310 Prakt. Met. Sonderband 38 (2006) 
Composition: rT 
Fe 0.3550.0.62510.855Mn.0.047Ni,2.35Cr.0.42Mo,0.1 av. [cea =r 
0.006Co,0P,08,0.011N,0.00018,0.07Cu (wt.%) Fa 
‘wustenite Grain Size = 0.00015 m, Cooling Rate = SK/s YHH = 543 
uu oe 
= — Martensite 
sc 7 +... Bainite 
° 
0.001 0.01 0. Cooling Rate, (K/s) 10 100 1000 
Figure 3. Sample “A” [6]. 
=> i ed 
Lmposition: = 
sin ATO TA FR 2v, Ee 
1.005Co,0P,08,0.011N,0.00018,0.021Cu {wt. 5% 
yustenite Grain Size = 0.0001 Sm, Cooling Rate = SK/s Ci YHN = 556 
"700 —— i 
7 x — Martensite 
£ | Bainite 
“ a0 - WERE u Ferrite 
\ 60- 
Sn 
0 A ERE PR pS Y, 
0.001 0.01 a RL 100 1000 
Figure 4. Sample “B” [6]. N: 1 
N+N 
N+V 
HARDNESS AFTER OIL QUENCHING N+p 
500 
475 
~ 450 
fy 
5 425 
x 
wv 400 
~~ 
0 
= 375 
m 
T 350 
325 
300 
Poleshoe ID. 
@ Upper face @ Lower Face 
Fir 
1 
gure 5