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X 25 >"":'. ''lo. , " '. ~. ~ '"\" \ '" ,. I ,.. 0°C/s Tq = 1360°C d = 70 fLm Figures 2-4: Former 8-dendri~es. transformed to y by the peritectlc reaction. 5°C/s = 1360°C d = 90 fLm x 25 Figure 4 ", liquid (L). 1°C/s = 1360°C = 150fLm 400 fLm x 25 Steel 212 • 43 STEEL 212. 5°C/s Tq = 1480°C d = 70 fLm o·dendrites and quenched 400 fLm . I Y J. r ' I 'f ~, ~ ',': ( .

M Figures 2 - 4: Former Il-dendrites, transformed to y by the peritectic reaction. ~ \ \. 1 ,. ,.. '" I ... ), " ... . •,; t , ; ..... ;' .. •• l 4. ' x 25 f :. ••.. m .. , "'" S j \ '.. •.. •••. ~ - .. . .. "- --' .. - .. " y . ••.. - x 25 •• •-. I , •• .. "'. I " t 1JIl I •• .. m x 25 Steel 214 • 47 STEEL 214. 8159 Nr Composition (wt-%) C Si Mn p S Cr Ni Mo Cu 0,52 0,22 0,85 0,010 0,006 1,07 0,07 0,07 0,04 fs Thermal Analysis 0,0 0,2 0,4 0,6 N 0,14 0,008 ~0,004 1,0 0,8 dT d"t T (OC) (OC/s) CD t 1500 +1,5 T +1,0 1450 +0,5 0 1400 dT dt -0,5 1350 -1,0 -1,5 R = O,soC/s 1300 0 200 100 300 't (5) Average Cooling Rate,R, eC/s) 2,0 Liquidus Solidus temperature, temperature, austenitic °C Solidification range, °C Solidification time, s CD primary phase, °C CD Small amount carbides.

Lm Figures 2-4: Former o-dendrites, transformed to y by the peritectic reaction. l # ,f • ,. •.. ~ '" -. .. ,' j1r , If Figure 4 R Tq d .. 4f •• = 0,1°C/s ;.. Lm , , \ . e' 36 • Steel 209 STEEL 209. 0,5 0 1400 -0,5 1350 R -1,0 -1,5 1300 = 0,5 C/s Q 0 100 200 Average Liquidus temperature, ferritic Temperature of austenite Temperature of MnS-formation, Solidus temperature, Solidification QC primary formation, CD phase, QC QC QC CD CD CD Solidification Precipitates MnS. The steel was resulphurized (see figures 5-7).

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