Influence of Technological Parameters on the Toughness Improvement of Microalloyed Steels

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• 作者：Mihaela Taca^a ; ^{taca@metav-cd.ro" class="auth_mail" title="E-mail the corresponding author} ; Dan M. Constantinescu^b ; Florin Baciu^b ; Victor Geanta^c ; Dana Daisa^a ; Radu Stefanoiu^c
• 关键词：Microalloyed steels ; forging technology ; toughness ; mechanical properties
• 刊名：Materials Today: Proceedings
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：3
• 期：4
• 页码：1177-1182
• 全文大小：513 K

文摘

Microalloyed (MA) steels are suitable as a replacement for plain carbon steels grades due to their ability to achieve final engineering properties in as forged and normalized condition, thus eliminating the need for subsequent heat treatments. Compared to the quenched and tempered steels at the same hardness, MA steels have much lower toughness so their further use is restricted to parts not subjected to impact loadings. The study on the influence of forging and cooling parameters in obtaining high toughness microalloyed steels within specified compositional domains is presented in the paper. The results of the experiments will be used for the development of a new microllaoyed steel with improved toughness and formability as a replacement for low alloyed heat treatable steels.