Results 41 to 50 of about 887 (181)

Studies on Preparation of Acicular Ferrites and Their Properties.

Journal of the Japan Society of Powder and Powder Metallurgy, 1998
Acicular barium ferrite, cobalt ferrite and crystal oriented manganese zinc ferrite particles were prepared using the acicular α-FeOOH as the starting material. The crystal structure and magnetic characteristics of these fine particles were investigated in detail. Acicular barium ferrite fine particles doped with Co2+ ions and Ti4+ ions were fabricated
openaire   +2 more sources

Utilization of Non‐Metallic Inclusion to Induce Intragranular Acicular Ferrite Formation Contributing to “Oxide Metallurgy”: Effect of Ti/Al Content on the Microstructure Evolution

steel research international, Volume 96, Issue 8, August 2025.
Fine size inclusion can serve as the effective nucleation site to induce the formation of optimal microstructure, i.e. intragranular acicular ferrite (IAF). Here, the low‐alloy steels with different amounts of Ti and Al contents are prepared, and the inclusion characteristics are quantitatively investigated.
Chen Cai, Wangzhong Mu
wiley   +1 more source

Microstructure and Properties of Corrosion-Resistant Steel Produced by CASTRIP

Crystals
The CASTRIP process is an innovative method for producing flat rolled low-carbon and low-alloy steel at very thin thicknesses. By casting steel close to its final dimensions, enormous savings in time and energy can be realized.
Kai Lei, Long Chen, Hengchang Lu, Xintong Lian, Qingxiao Feng, Hualong Li, Han Dong   +6 more
doaj   +1 more source

Effects of the Wire Feeding Speed on the Mechanical Properties and Electrochemical Corrosion Behaviors of a Hybrid Laser-MAG Welded X90 Pipeline Steel

International Journal of Electrochemical Science, 2020
This paper studies the welding of X90 pipeline steel with ER100S-G welding wire via laser-metal active gas arc (laser-MAG) hybrid welding and explores the effects of three wire feeding speeds (8.5 mm/s, 9 mm/s, and 9.5 mm/s) on the microstructure ...
Mei Yang, Jingxiang Lu, Yang Li, Jian Tan, Wenhao Zhang, Honglang Yang   +5 more
doaj   +1 more source

Reduction of Basic Iron Ore Sinter under Blast Furnace Wall and Center‐Simulated Conditions in CO–CO2–H2–H2O–N2 Gas

steel research international, Volume 96, Issue 7, July 2025.
This study investigates the reduction of iron ore sinter in hydrogen and water vapor‐containing gas. It reveals differences in reduction behavior between blast furnace center and wall regions. Results highlight the role of temperature, gas composition, and microstructure in reduction efficiency.
Ahmed Abdelrahim, Mikko Iljana, Matti Aula, Timo Fabritius   +3 more
wiley   +1 more source

Measurement of CCT Curves and Effect of Cooling Rate on Structure of a Pipeline Steel L360NB

Teshugang, 2012
The continuous cooling transformation (CCT) curves of round casting bloom of pipeline steel L360NB (/%: 0. 14C, 0. 32Si, 0. 14Mn, 0. 020Ti, 0. 010V, 0. 038Nb, 0.
王倩, 袁泽喜, 宋新莉
doaj  

Assessing the Very High Cycle Fatigue Behavior and Frequency Effect of Structural Steel Welds

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 4, Page 1529-1541, April 2025.
ABSTRACT The very high cycle fatigue behavior of S275J2+N flux‐core arc welded joints was investigated using the ultrasonic fatigue testing method at a loading frequency of 20 kHz. A bespoke specimen design featuring the weld toe was employed to more suitably represent in‐service welded joints than typical ultrasonic fatigue testing specimens.
Andrew England, Yevgen Gorash, Athanasios Toumpis   +2 more
wiley   +1 more source

Comparison of Novel 1 GPa Low‐Carbon, Low‐Alloyed Steel Produced with Simulated and Laboratory‐Scale Thermomechanical Controlled Processes

steel research international, Volume 96, Issue 3, March 2025.
A laboratory‐scale hot‐rolled Ti–Mo–V–Nb steel with 1 GPa tensile strength is produced, and its microstructure and tensile properties are characterized using advanced analysis techniques and tensile testing. A Gleeble 3800 thermomechanical simulator is used to determine a process window. Results show significant differences in mechanical properties and
Olli Nousiainen, Jaakko Hannula, Sami Saukko, Antti Kaijalainen, Jukka Kömi   +4 more
wiley   +1 more source

Conditions for the occurrence of acicular ferrite transformation in HSLA steels [PDF]

Journal of Materials Science, 2017
For the class of steels collectively known as high strength low alloy (HSLA), an acicular ferrite (AF) microstructure produces an excellent combination of strength and toughness. The conditions for the occurrence of the AF transformation are, however, still unclear, especially the effects of austenite deformation and continuous cooling.
Zhao, H., Wynne, B.P., Palmiere, E.J.
openaire   +3 more sources

Effect of initial microstructures on the properties of Ferrite-Martensite Dual-Phase pipeline steels with Strain-Based design

Materials Research, 2012
This study aims to investigate the effect of initial microstructures on the properties of ferrite-martensite dual-phase pipeline steels with strain-based design.
Yueyue Hu, Xiurong Zuo, Rutao Li, Zhanzhan Zhang   +3 more
doaj