Clustering effect on high temperature tensile behaviour of vanadium microalloyed steel
Küçük Resim Yok
Tarih
2007
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Sa
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
in the present work, high temperature tensile behaviour of vanadium microalloyed steel has been examined under as-received, air cooled and stainless steel cylinder tube cooled conditions. The results indicated that ultimate tensile strength (UTS) of the as-received samples and samples cooled in air and in a stainless steel cylinder tube showed larger differences after testing at 450 degrees C where the air cooled samples displayed the highest UTS. The increased in UTS at 450 degrees C suggests there is interaction between dislocation and precipitate particles or solute atoms which make dislocation movement more difficult. This is due to the presence of solute atoms such as carbon and nitrogen in solid solution. Tempering steel samples at 450 degrees C after air cooling or accelerated air cooling indicated that increasing tempering time reduced clustering effect of V and C on UTS by the formation of VCN precipitates, as a result steel samples showed a decrease in UTS.
Açıklama
Anahtar Kelimeler
microalloyed steel, tensile strength, clusters
Kaynak
Journal of Materials Processing Technology
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
186
Sayı
1-3
