Steels_ Metallurgy and Applications, Third Edition

208 Steels: Metallurgy and Applications Water jet prior to placement of s )ecimen | ,., -- Jomlny specimen Figure 3.7 Jominy har ...

Engineering steels 209 1 r .I- C I I I I I I I , I ,, , ,, , Diameter I In Figure 3.9 Schematic SAC hardenability curve effects ...

210 Steels: Metallurgy and Applications 7O 6O rr 1- 50- r "2 t~ _ "r" 40- 3O 925oc 845oc 815oc 790~ 775oc I I I I I I I 10 20 30 ...

Engineering steels 211 linear at carbon contents up to about 0.6% but, depending upon the alloy content of the steel, the hardne ...

212 Steels: Metallurgy and Applications Figure 3.13 CooP) a00 I-- 0.a0% c / ....... -- - o.9o% c r0o 1-- 0.70,/, c / ~ ~o.6o% C ...

Engineering steels 213 Cr , I 4.6 4.2 "1 - " " I i 3.8 ~. i "4.2 3.4 /- i - '/ NI ......... 4.0 ! J ,_.___.__ 3.0 I " " " m Mo ( ...

214 Steels: Metallurgy and Applications The effect of boron on hardenability is relatively constant provided a minimum level of ...

Engineering steels 215 15- .9o "~ I = e.= _ 9 - ~ o 251-- ,*, ,g 20 ci ,o 9 N 5 500 , ae a I I I_ I 0 1 2 3 4 5 6 Soluble boro ...

216 Steels: Metallurgy and Applications The interaction between boron and carbon was also investigated in SAE 8600 base steels a ...

Engineering steels 217 4.0 3.5 3.0 2.5 E" t,,,, "~ 2.0 C 2 1.5 1.0 0.5 o 90% martenslte 9 80% martenslte o 50% martensite % g ...

218 Steels: Metallurgy and Applications temperature in order to obtain a better combination of properties. In carburized gears, ...

Engineering steels 219 Table 3.1 Element Retardation in tempering per 1% addition C -40 Co 8 Cr 0 Mn 8 Mo 17 Ni 8 Si 20 V 30 W 1 ...

220 Steels: Metallurgy and Applications period, the energizer breaks down to form CO2 which then reacts with carbon in the charc ...

Engineering steels 221 9 Reheat quenching- cooling to room temperature and then reheating to a temperature of about 840"C befor ...

222 Steels: Metallurgy and Applications Table 3.2 Grade C% Si% Mn% Cr% Mo% V% Al% 709M40 0.4 0.25 0.85 1.05 0.3 722M24 0.24 0.25 ...

Engineering steels 223 as nitriding and induction hardening. Their main findings can be summarized as follows: 9 Carburizing- c ...

224 Steels: Metallurgy and Applications produced from 50 kg experimental casts of steel. The specimens were carburized at 925"C ...

Engineering steels 225 0.04 0.02 0 ~ , -0.02 -0.04 c3 -0.06 O -O.08 -0.10 -0.12 -0.14 o Centre o Edge z Bore .., -0.02 - A -0.04 ...

226 Steels: Metallurgy and Applications influence of other important factors such as carbudzing treatment and alloy content/hard ...

Engineering steels 227 +0.4 E E +0.3 ~+0.2 C 0 C .~_ +0.1 c- O -0.1 -0.2 (a) ,,=. o CM80 & CM60 ._ o637H17 (En352) 9 835H15 ...