New PDF release: A guide to the Solidification of Steels

By Jernkontoret

ISBN-10: 9172601566

ISBN-13: 9789172601567

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Extra info for A guide to the Solidification of Steels

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1 '. Lrn Figures 2-4: y-dendrites. '.. ' 1- ; • " " . ) \. ' ;~, .. ,.. ,. ~. '" " l '-. •..... i . ,;" f" ". ' •• '. •.. 1Y \. "

I R = 2,0°C/s Tq = 1310°C d = 75 fLm Figures 2-4: y-dendrites. fLm x 25 ~ " J ( . •. -. ') .. Figure 2 ". •. I "" : , • •• . I ~ . ,; ,. ~ "... r , J ••• } 55 fLm '. ).. ). I I. \ • " . \ I \ \ \ , \ I"- \ lo = 1470°C \ \ \ \ \ I \ . , = \ 'I I '\ \. ' ( d 400 , ~ { , \ t \ \ \ ,,. { , • t\ . ~ '- \ J = 0,5°C/s '>. ' R Tq y-dendrites -. ~:,~ . J , J f - x 25 •• Figure 4 R Tq d = 400 fLm 0,1°C/s 1310°C = 140 fLm x 25 Steel 215 • 49 STEEL 215. 2721 Composition (wt-%) C Si Mn p S Cr Ni Mo Cu v 0,55 0,27 0,50 0,019 0,012 0,99 3,0 0,31 0,06 0,08 fs Thermal Analysis 0,0 0,2 0,4 0,6 N 0,8 0,011 0,008 1,0 dT de T (OCl (OC/s) 1500 +',5 T 1450 0 1400 dT d't' 1350 -1,5 R = O,5°C/s 1300 100 0 200 Average Liquidus temperature, Temperature Solidus austenitic of formation temperature, °C primary of eutectic, CD phase, °C CD °C 300 T(s) Cooling Rate,R, (OC/s) 2,0 0,5 0,1 1471 1471 1472 1365-1335 1335 -1370 1370 -1375 1375 Solidification range, °C 140 100 75 Solidification time, s 100 260 720 Precipitates Interdendritic carbide-austenite eutectic, Fe3P and MnS, (see figure 5).

I ! • /' I I ~ ,, '\' • ), \'1. -, ~ I' , ~ liquid (L). "" ... f ,... ,I R = 2,0°C/s Tq = 1310°C d = 75 fLm Figures 2-4: y-dendrites. fLm x 25 ~ " J ( . •. -. ') .. Figure 2 ". •. I "" : , • •• . I ~ . ,; ,. ~ "... r , J ••• } 55 fLm '. ).. ). I I. \ • " . \ I \ \ \ , \ I"- \ lo = 1470°C \ \ \ \ \ I \ . , = \ 'I I '\ \. ' ( d 400 , ~ { , \ t \ \ \ ,,. { , • t\ . ~ '- \ J = 0,5°C/s '>. ' R Tq y-dendrites -. ~:,~ . J , J f - x 25 •• Figure 4 R Tq d = 400 fLm 0,1°C/s 1310°C = 140 fLm x 25 Steel 215 • 49 STEEL 215.

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A guide to the Solidification of Steels by Jernkontoret


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