Results 71 to 80 of about 4,989 (222)

Microstructure Development in a New Generation S1300‐Type Ultrahigh‐Strength Structural Steel on Tempering

steel research international, Volume 97, Issue 1, Page 524-542, January 2026.
Here, the microstructure evolution of a new generation ultrahigh‐strength S1300‐type structural steel has been investigated for direct‐quench and tempering route. Various stages of tempering are elucidated by thorough characterization, and a new strain‐size parameter of martensite is proposed to have a correlation with hardness, which will be useful in
Buddhadev Jana, Radhakanta Rana
wiley   +1 more source

New insight into the role of austenite grain size in the bainitic transformation of low carbon steel

Journal of Materials Research and Technology
Bainitic transformation plays a crucial role in determining the mechanical properties of low carbon steel, especially for applications in the automotive industry.
Feilong Liu, Shaojie Song, Lei Wang, Kexing Song, Feng Liu   +4 more
doaj   +1 more source

Austempering Post‐Intercritical Austenitizing to Enhance Mechanical Properties of an Oil Country Tubular Goods Steel

steel research international, Volume 96, Issue 12, Page 211-227, December 2025.
A new austempering approach following intercritical austenitizing is explored to improve the mechanical behavior of API 5CT steel. By tailoring ferrite–bainite microstructures, the process achieves a balance of strength and ductility without the need for post‐quench tempering. The results highlight a cost‐effective alternative to conventional quenching
Paulo Henrique Cirilo, Paulo Sérgio Moreira, Geraldo Lúcio de Faria   +2 more
wiley   +1 more source

In-situ investigation on the morphological evaluation of bainitic microstructure of medium C-steel

Discover Materials
The bainitic transformation behavior and microstructural evolution in C–Mn–Si steel were investigated using in-situ Laser Scanning Confocal Microscopy (LSCM) and dilatometry.
Soumyadarshi Saswat Mahapatra, Md. Basiruddin Sk, Prakash Srirangam, Soumitra Kumar Dinda   +3 more
doaj   +1 more source

A TEM, STEM and backscattered electron channeling imaging study of martensite formation in Co-19.6Fe [PDF]

, 1986
A high purity, C-free Co-19.6Fe alloy is shown to undergo a variety of martensitic and bainitic reactions. TEM, STEM and back-scattered electron channelling patterns and images have been used to study the effects of ageing at temperatures below the α ...
Payne, S. M.
core  

Thermomechanical Processing, Microstructure, and Mechanical Properties of Medium‐Mn Steel

steel research international, Volume 96, Issue 12, Page 252-260, December 2025.
The microstructure evolution and mechanical properties of a medium‐Mn steel are investigated after thermomechanical processing and isothermal holding at various temperatures. A fine multiphase structure of bainite, fresh or tempered martensite, and retained austenite are obtained.
Burak Barutçuoğlu, Özge Ararat, Ersoy Erişir, Serkan Oktay   +3 more
wiley   +1 more source

Improving strength and ductility via ausforming combined with austempering through deformation-induced bainite refinement

Journal of Materials Research and Technology
The refinement of bainitic ferrite laths is one of the most critical ways to improve the combination of strength and ductility. However, low-temperature bainitic transformations in the microstructural evolution of carbide-free bainite in high-carbon ...
Jianhua Li, Peng Chen, Ning Xu, Dapeng Yang, Hongshuang Di, Hongliang Yi   +5 more
doaj   +1 more source

Effects of ausforming temperature on bainite transformation kinetics, microstructures and mechanical properties in ultra-fine bainitic steel

Journal of Materials Research and Technology, 2020
The effects of ausforming temperature on bainite transformation kinetic and plastic deformation mechanism were evaluated by thermal simulation method and warm rolling process.
Hui Guo, Xianying Feng, Aimin Zhao, Qiang Li, Mengjiang Chai   +4 more
doaj   +1 more source

The Influence of Subcritical Annealing and Cold Working on the Hydrogen Embrittlement Susceptibility of X65 D Pipeline Steel

Materials and Corrosion, Volume 76, Issue 10, Page 1478-1496, October 2025.
This study investigated the effect of subcritical heat treatment and cold work on the hydrogen embrittlement (HE) susceptibility of the X65 D pipeline steel. Hydrogen charging reduced the ductility of all specimens. Both subcritical annealing and cold working decreased somewhat the degree of HE.
Joshua Hoschke, Md Fahdul Wahab Chowdhury, Maximilian Roethig, Clotario V. Tapia‐Bastidas, Jeffrey Venezuela, Yilei Shu, Evan Gray, Milos B. Djukic, Tom Depover, Kim Verbeken, Andrej Atrens   +10 more
wiley   +1 more source

The Nitrocarburising Response of Low Temperature Bainite Steel

Metals, 2017
The nitrocarburising response of low transformation temperature ultrafine and nanoscale bainitic steel was investigated and compared with martensite and pearlite from the same steel composition.
Daniel Fabijanic, Ilana Timokhina, Hossein Beladi, Peter Hodgson   +3 more
doaj   +1 more source