Journal ArticleDOI
Role of retained austenite with different morphologies on sub-surface fatigue crack initiation in advanced bainitic steels
TLDR
In this article, the authors describe the distinct high cycle fatigue properties of advanced bainitic steels to elucidate the significant role of retained austenite with different morphologies on sub-surface fatigue crack initiation process.About:
This article is published in Scripta Materialia.The article was published on 2020-07-15. It has received 63 citations till now. The article focuses on the topics: Austenite & Martensite.read more
Citations
More filters
Journal ArticleDOI
Microstructures and rolling contact fatigue behaviors of 17Cr2Ni2MoVNb steel under combined ultrasonic surface rolling and shot peening
Yalong Zhang,Yalong Zhang,Shengguan Qu,Feng Lu,Fuqiang Lai,Fuqiang Lai,Vincent Ji,Haipeng Liu,Xiaoqiang Li +8 more
TL;DR: In this paper, a novel surface treatment method of combining ultrasonic surface rolling (USR) and shot peening (SP) in different sequences was proposed, which can significantly generate ultra-fine grains, improve surface microhardness and induce high intensity residual compressive stress in material surface layer.
Journal ArticleDOI
Mechanism of subsurface microstructural fatigue crack initiation during high and very-high cycle fatigue of advanced bainitic steels
TL;DR: In this paper , the authors identified the knowledge gap through an examination of subsurface crack initiation and interaction with the local microstructure, and indicated that there are multiple micro-mechanisms responsible for the NIICI failure of bainitic steels.
Journal ArticleDOI
Mechanism of subsurface microstructural fatigue crack initiation during high and very-high cycle fatigue of advanced bainitic steels
Guhui Gao,Guhui Gao,Rong Liu,Yusong Fan,Guian Qian,Xiaolu Gui,R.D.K. Misra,Bingzhe Bai,Bingzhe Bai +8 more
TL;DR: In this article, the authors identified the knowledge gap through an examination of subsurface crack initiation and interaction with the local microstructure, and indicated that there are multiple micro-mechanisms responsible for the NIICI failure of bainitic steels.
Journal ArticleDOI
Effect of retained austenite on impact toughness and fracture behavior of medium carbon submicron-structured bainitic steel
TL;DR: In this article, the effects of retained austenite on the crack propagation behavior of a submicron-structured bainitic steel under impact fracture were studied using scanning electron microscopy (SEM), TEM, and electron back-scattering diffraction (EBSD).
Journal ArticleDOI
Mechanical properties of nanostructured bainitic steels
Avanish Kumar,Aparna Singh +1 more
TL;DR: In this paper, a review article on the mechanical properties of nanostructured bainitic steels is presented, where the authors have presented the background on development of these steels through appropriate alloy design and specific heat-treatment procedures.
References
More filters
Journal ArticleDOI
Roles of microstructure in fatigue crack initiation
TL;DR: In this paper, the role of microstructural features such as grain size, texture, porosity, non-metallic inclusion in the fatigue crack initiation process and the manners by which these micro-structural effects affect the shape of the stress-life curves are examined.
Journal ArticleDOI
Coarse slip model of fatigue
TL;DR: In this article, a model for the formation and propagation of cracks is developed which satisfies many well known general features of fatigue as well as the results of new observations of the fracture surface features of single crystals of copper.
Journal ArticleDOI
Materials science perspective of metal fatigue resistance
TL;DR: In this article, an interdisciplinary view of metal fatigue in polycrystalline metals is presented, where fatigue resistance is defined in terms of the difficulty of crack growth in one of two possible directions, the first being related to the texture of a material, and the second to the orientation of the applied loading system.
Journal ArticleDOI
Enhanced ductility and toughness in an ultrahigh-strength Mn-Si-Cr-C steel: The great potential of ultrafine filmy retained austenite
TL;DR: In this article, the formation process of the bainitic microstructure as well as martensite and retained austenite was revealed by conducting dilatometry, X-ray diffraction, scanning electron microscopy, electron backscatter diffraction and transmission electron microscope (TEM).
Journal ArticleDOI
Design of novel high strength bainitic steels: Part 1
TL;DR: In this article, the authors used phase transformation theory to design a series of fine plates of upper bainitic ferrite separated by thin films of stable retained austenite for high silicon bainite steels.