Results 51 to 60 of about 405 (179)

A Statistical Review of Hydrogen Effects on the Fatigue and Fracture Behavior of Steel

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 9, Page 3613-3644, September 2025.
ABSTRACT This study conducts a statistical re‐analysis of experimental data from the literature to assess the influence of hydrogen on key mechanical properties, including the medium‐/high‐cycle fatigue strength and the threshold value of the stress intensity factor range.
H. Wang, N. O. Larrosa, D. Engelberg, R. Best, L. Susmel   +4 more
wiley   +1 more source

Effect of two-step austempering on fatigue behavior of austempered ductile iron (ADI) [PDF]

SN Applied Sciences, 2019
The effect of two-step austempering on the fatigue properties in alloyed ductile iron was studied. The ductile irons were subjected to conventional and two-step austempering processes. The austempering process was performed by making three batches. In the first batch, samples after austenitizing at 900 °C were conventionally austempered separately at ...
C. S. Wadageri, R. V. Kurahatti
openaire   +1 more source

Very High Cycle Fatigue Performance of Ductile Cast Iron With Different Microstructures

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 9, Page 3950-3966, September 2025.
ABSTRACT The very high cycle fatigue performance of four ductile cast irons, a solid solution strengthened ferritic, ferritic‐pearlitic, and two austempered ductile cast irons, was investigated by ultrasonic fatigue testing under fully reversed loading conditions. The step‐stress fatigue testing method incorporating re‐use of runouts was employed, with
Max Ahlqvist, Kenneth Weddfelt, Daniel Leidermark, Viktor Norman   +3 more
wiley   +1 more source

Formation of Bainite in a Low‐Carbon Steel at Slow Cooling Rate – Experimental Observations and Thermodynamic Validation

steel research international, Volume 96, Issue 2, February 2025.
A low‐carbon (0.23 wt%) carbide‐free bainitic steel is successfully developed with a total alloying addition of 4.9 wt%, which is relatively lower than alloying additions reported in similar category of steels. The present findings indicate that the currently designed low‐alloy steel composition is amenable to generation of nearly carbide‐free bainitic
Poulami Chakraborty, Suman Neogy, Nilabja Kanti Sarkar, Harish Donthula, Subir Kumar Ghosh, Hillol Kumar Nandi, Bandarupalli Gopalakrishna, Ilangovan Balasundar, Raghvendra Tewari   +8 more
wiley   +1 more source

The Austempering Kinetics, Microstructural Development and Processing Window in the Austempered, FE-3.2C-4.8AL Compacted Graphite Cast Iron

Iranian Journal of Materials Science and Engineering, 2020
In the present study, austempering heat treatment was performed on compacted graphite aluminum cast iron with the chemical composition of 4.8%wt Al, 3.2%wt C, 0.81%wt Ni, 0.37%wt Mn, and 0.02%wt Mg.
A. Kazazi, S. M. Montazeri, S. M. A. Boutorabi   +2 more
doaj  

The Effect of Cryogenic Treatment on W360 and E38K Hot Work Tool Steels

steel research international, Volume 95, Issue 9, September 2024.
The cryogenic treatment facilitates the transformation of retained austenite to martensite to an undetectable limit, with about 3 times higher amount of the carbide precipitation for both steel types. Both steel types exhibit almost similar impact energy values at room temperature, but E38K steel has 2 times higher energy at 350 °C.
Caner Kiraz, Burak Birol, Ahmet Sağın
wiley   +1 more source

Microstructural evolution during austempering of a ASTM A-532 CLASS III type high chromium white cast iron undergoing abrasive wear

Revista Facultad de Ingeniería, 2017
This paper studies the influence of variables such as holding temperatures and times during austempering of High Chromium White Cast Iron (HCWCI), with the following chemical composition: Cr 25 %, C 3 %, Si 0.47 %, Mn 0.74 % and Mo 1.02 %. The aim of the
Oscar Fabián Higuera-Cobos, Jeison Bucurú-Vasco, Andrés Felipe Loaiza-Patiño, Mónica Johanna Monsalve-Arias, Dairo Hernán Mesa-Grajales   +4 more
doaj   +1 more source

Austempered Compacted Graphite Iron — Influence of austempering temperature and time on microstructural and mechanical properties

Materials Science and Engineering: A, 2019
This study investigates the effect of austempering temperature and time on the microstructural and mechanical properties of unalloyed Compacted Graphite Iron (CGI) with an initially ferritic matrix ...
Ghasemi, Rohollah, Hassan, Inamul, Ghorbani, Arvin, Diószegi, Attila   +3 more
openaire   +3 more sources

Determining Factors of Grain Size in Bainite Structure of Fe–2Mn–C Alloys

steel research international, Volume 95, Issue 8, August 2024.
The crystallographic variants and effective grain sizes of bainitic ferrite in Fe–2Mn–C alloys with various carbon contents are determined by local orientation measurements. Decrease in transformation temperature is beneficial for grain refinement of bainite structure although effects of carbon content are different between low‐carbon and high‐carbon ...
Tadashi Furuhara, Takeshi Kaneshita, Goro Miyamoto   +2 more
wiley   +1 more source

Microstructure and mechanical behaviors of grinding balls produced by dual matrix structure two-step austempering process

Journal of Materials Research and Technology, 2020
The austempered ductile iron (ADI) grinding balls were austenitized at 900 °C for 2 h and then incomplete quenched in a sodium silicate solution for 100 s, after that austempered in an isothermal furnace at 230 °C for 1 h.
Hongyu Zhou, phD, Yaqiang Li, phD, Zheng Yin, Master, Minrui Ran, phD, Shibin Liu, phD, Ying Huang, Master, Weidong Zhang, phD, Wenyue Zheng, phD, Junyou Liu, phD   +8 more
doaj   +1 more source