Transcription of 鋼の熱処理基礎知識 - Welcome to ECS site
1 ( ) ( ) (a) (b) (c) a 1536 C 1392 C911 C A4 A3 780 C 780 C 911 C1392 C1536 C L= G= = ( ) = ( ) = ( )
2 A3 A P P: A M: B: PF PM: PC M B M+PF PF PM PC A3 C bccC 727 C 912 C A fccC 1147 C 912 1391 C bccC 1490 C 1391 1536 C P + 3 3 3 Fe C C M bct
3 200 C 250 C a e Hardening C A AP M TS C C
4 250 C SLD A. C HRC) 250 SLD B. C SLD C.
5 J/cm2 520 C 200 C SLD D. C N) 1010 C 1 2 mm) : annealing normalizing
6 3 C 50 G 0561 2011
7 Fe W Cr Mo V Ni Mo W V V Mo S CMnNiCrMo SM FC FCD SCM (S:Steel; C:Chromium.)
8 M:Molybdenum) SCr(S:Steel; C:Chromium) SNC (S:Steel; N:Nickel C:Chromium) SNCM (S:Steel; N:Nickel C:Chromium; M:Molybdenum)FCD (F:Ferrum; C:Casting; D:Ductile) C% HRC C% HRC 1. 2. 3. 4. A C C C C B = = = 1 2 3 C 4Cp1%Cp2%Cp2% 64 1030 C ( = 400 = + [ ] + [ ]
9 Cp1%C C B C ACp2%NH3V1m3/h 1 2 3 4 Induction hardening R Induction hardening and tempering
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