Martensite morphology and strain aging behaviours in intercritically treated low carbon steel
Küçük Resim Yok
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The strain aging behaviour of intercritically annealed low carbon steel with different martensite morphologies has been investigated. Aging experiments after 4% prestrain were carried out at 180 degrees C for different times ranging from 10 to 160 min. It was found that the variation in bake hardening response Delta Y, lower yield stress and ultimate tensile stress with aging time describes a similar trend for all three microstructural variants, but the absolute values of bake hardening response, lower yield stress and ultimate tensile stress are higher for the microstructure containing fibrous, more uniformly distributed martensite. The aging response of fibrous martensite was also found to be slower, and the fibrous martensite morphology provided the best combination of strength and ductility as desired for dual phase steels.
Açıklama
Anahtar Kelimeler
Dual phase steel, Martensitic transformation, Mechanical properties, Microstructure
Kaynak
Ironmaking & Steelmaking
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
38
Sayı
5
