Fracture surface, impact energy and hardness of Ni-free high-Mn steels
| Data(s) |
01/11/2011
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|---|---|
| Resumo |
Two manganese steels were investigated: Fe-19.7%Mn (VM339A) and Fe-19.7%Mn stabilized with 0.056%C, 0.19%Ti and 0.083%Al (VM339B). The toughness of VM339A was higher than VM339B, but VM339B had higher hardness. Tempering does not affect the toughness of the alloys. SEM images of the fracture surface for both the alloys revealed ductile fractures. A further alloy with a lower manganese content, Fe-8.46%Mn-0.24%Nb-0.038%C, and thus even lower cost than the conventional 3.5Ni cryogenic steel, was tested for its impact toughness after heat treatment at 600°C, giving promising results. |
| Formato |
application/msword |
| Identificador |
http://pure.qub.ac.uk/ws/files/16175956/Nickel_free_Cryogenic_Steels.doc |
| Idioma(s) |
eng |
| Direitos |
info:eu-repo/semantics/openAccess |
| Fonte |
Sha , W , Haji Talib , H H , Wilson , E , Rajendran , R , Malinov , S , Charlesworth , H & Ibbitson , L 2011 , ' Fracture surface, impact energy and hardness of Ni-free high-Mn steels ' Microscopy and Analysis , vol 25 , no. 7 , pp. 15 (EU,AM)-19 (EU,AM) . |
| Palavras-Chave | #scanning electron microscopy #hardness measurement #mechanical characterization #steel #fracture |
| Tipo |
article |
