：Alter martensitic phase transformation kinetics by forming Ni-rich nanolayer in metastable austenitic steels论文

本文主要研究内容

作者（2019）在《Alter martensitic phase transformation kinetics by forming Ni-rich nanolayer in metastable austenitic steels》一文中研究指出：A 5 nm Ni-rich nanolayer has been introduced along nanoscale martensite/austenite phase boundaries(PBs) by one-step lowtemperature annealing treatment of cold-rolled meta-stable austenitic steels. Control experiments reveal that the martensitic phase transformation kinetics can be significantly altered by presence of the nanolayers. The growth of pre-existed martensites is substantially suppressed while the martensite nucleation in austenites is less affected, as revealed by a statistical investigation on the martensite size distribution under different tensile strains. Enhanced strength and excellent ductility have been achieved simultaneously in the annealed samples, demonstrating that PBs can be effectively engineered to achieve optimized mechanical properties.

Abstract

A 5 nm Ni-rich nanolayer has been introduced along nanoscale martensite/austenite phase boundaries(PBs) by one-step lowtemperature annealing treatment of cold-rolled meta-stable austenitic steels. Control experiments reveal that the martensitic phase transformation kinetics can be significantly altered by presence of the nanolayers. The growth of pre-existed martensites is substantially suppressed while the martensite nucleation in austenites is less affected, as revealed by a statistical investigation on the martensite size distribution under different tensile strains. Enhanced strength and excellent ductility have been achieved simultaneously in the annealed samples, demonstrating that PBs can be effectively engineered to achieve optimized mechanical properties.

论文参考文献

论文详细介绍

论文作者分别是来自Science China(Technological Sciences)的，发表于刊物Science China(Technological Sciences)2019年04期论文，是一篇关于,Science China(Technological Sciences)2019年04期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自Science China(Technological Sciences)2019年04期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。

标签：Science China(Technological Sciences)2019年04期论文;