Theoretical analisys of material strenght after welding and probability of crack created in HAZ

Teoretyczna analiza podatności na pęknięcia zimne materiału po spawaniu


Wersja angielska, napisana przeze mnie , chyba nie będzie trudności z odczytaniem

EXAMPLE

Material and chemical composition:

Material
E275
S650MC
Carbon equivalent

I. Ce = 0,44
II. Ce = 0,45

Ce<=0,45 – good welded steel

Hardening in the material in HAZ
Hv = 1200Ce-200

I. Hv = 335
II. Hv = 334

Dla Hv < 350 propability of cracking in HAZ very low

Thermal Severity Number (TNS)
TNS = g1/6 + g2/6
g1, g2 – thickness of material

TNS = 8/6 + 3/6 = 1,83
The higher TNS - higher propability of cracking in HAZ , 1,83 is really small value for TNS.

Conclusion:
Probability of cracking in Heated Affected Zone is very small
Autor: Artur Mydlarz