Results 51 to 60 of about 1,345 (212)

Crash Behavior of DP800–DP1000 Advanced High‐Strength Steel’s Dissimilar Resistance Spot Welded Joints Under Quasi‐static and High Strain Rates

steel research international, EarlyView.
The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
wiley   +1 more source

Tailored Hardening and Isothermal Bainitizing of Additively Manufactured Nitrogen‐Enhanced Martensitic Chromium Steel

steel research international, EarlyView.
Tailored heat treatments transform additively manufactured high‐nitrogen martensitic Cr steel from austenitic as‐built condition to high‐hardness states. Isothermal bainitizing at 250°C generates an ultrafine nanostructure and achieves higher hardness than conventional hardening and tempering, highlighting a promising postprocessing route for laser ...
Philip König, Sebastian Weber, Jonathan Lentz   +2 more
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

Mechanical Property Comparison of AISI 5120 Steel Produced by LENS and DMD Systems

Engineering Reports, Volume 8, Issue 6, June 2026.
This study compares AISI 5120 steel produced by LENS and DMD processes, revealing trade‐offs in mechanical performance. LENS offers higher surface hardness and impact toughness, while DMD provides superior tensile strength and ductility. Findings guide process selection for application‐specific needs in automotive, aerospace, and heavy machinery ...
Thabiso Hopewell Sibisi, Ipfi Mathoho, Mxolisi Brendon Shongwe, Lerato Tshabalala, Samuel Skhosane, Rose Motau, Nomcebo Mndebele, Nontuthuzelo Vithi   +7 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

Bainite Transformation in a Silicon Steel.

ISIJ International, 1997
The processes of upper bainite formation, the crystallographic aspects and the internal structure in a 1.83% silicon steel have been investigated. The T-T-T diagram is separated into two C-curves as in the case of steels containing strong carbide forming elements.
Jung, Yun Chul, Ohmori, Yasuya, Nakai, Kiyomichi, Ohtsubo, Hiroyuki   +3 more
openaire   +2 more sources

Two‐Stage Isothermal Transformation of Austenite into Nanobainite in a Chemically Inhomogeneous Medium‐Alloy Steel Containing 0.5 wt% C

steel research international, Volume 97, Issue 6, Page 3308-3327, June 2026.
The effect of chemical inhomogeneity on the microstructure and properties of nanobainitic steel is investigated. A two‐stage isothermal heat treatment that produced a more uniform microstructure is designed. The first‐stage temperature is higher than the MS of depleted bands; conversely, the second‐stage temperature is lower than the first‐stage ...
Bogdan Garbarz, Jarosław Marcisz, Marek Jelec, Władysław Zalecki, Radosław Rozmus, Zofia Kania‐Pifczyk   +5 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

Unraveling the Effect of Tramp Elements on Phase Transformations in Steels by Combining CALPHAD Modeling and Experiments

Advanced Engineering Materials, Volume 28, Issue 9, 6 May 2026.
This study investigates how tramp elements from increased scrap usage influence phase transformations in low‐alloyed steel. Combining dilatometry and microscopy reveal that tramp elements delay transformations, reduce critical cooling rates and increase hardenability.
Lukas Hatzenbichler, Daniel Marian Ogris, Phillip Haslberger, Matthew Galler, Oleksandr Glushko, Ronald Schnitzer   +5 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