Results 71 to 80 of about 887 (181)

Acicular ferrite

Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture, 2015
Промежуточное превращение аустенита развивается в интервале температур между областями перлитного и мартенситного превращений [4]. При непрерывном охлаждении стали со скоростями ниже критической, но выше тех, которые необходимы для распада аустенита по диффузионному механизму, возможно образование смеси, состоящей из различных типов структур ...
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Effect of Inclusion Size on the Nucleation of Acicular Ferrite in Welds.

ISIJ International, 2000
Low-carbon steel weld with a high density of oxide inclusions prepared using a experimental metal-cored wire has been examined to study the effect of inclusion size on the formation of acicular ferrite, and to understand the role of inclusion in the nucleation of ferrite lath.
Lee, Tae-Kyu, Kim, H. J., Kang, B. Y., Hwang, S. K.   +3 more
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Microstructural Evolution and Tensile Properties of Nb-V-Ti-N Microalloyed Steel with Varying Nitrogen Contents

Metals
With the rapid development of long-distance transmission pipelines for oil and natural gas, pipeline steel is continuously evolving towards higher pressure, larger diameter, and thicker wall thickness.
Jiangcheng Liu, Kai Guo, Haote Ma, Jiangli He, Junchao Wang, Chuanyou Zhang, Tiansheng Wang, Qingfeng Wang   +7 more
doaj   +1 more source

Enhancing strength without sacrificing ductility in medium-carbon multiphase bainitic steel through increased intercritical annealing temperatures

Journal of Materials Research and Technology
In bainitic steels, enhancing strength often comes at the expense of ductility. In this paper, a medium-carbon multiphase bainitic steel was produced through intercritical annealing (IA) at various temperatures, followed by isothermal bainite ...
Wenlu Yu, Kaifang Li, Lihe Qian, Yipeng Ding, Zhixuan Jia, Chaozhang Wei, Limei Ren, Zhaoxiang Chen, Fucheng Zhang, Jiangying Meng   +9 more
doaj   +1 more source

Influence of the welding thermal cycle on δ-ferrite evolution in the first layer of austenitic stainless steel (ASS) 308L produced by WAAM-GTAW

Case Studies in Thermal Engineering
In this article, the effects on the weld bead geometry and heat affected zone at observe area explored on Wire Arc Additive Manufacturing Gas Tungsten Arc Welding (WAAM-GTAW).
Moch Chamim, Djarot B. Darmadi, Anindito Purnowidodo, Teguh Dwi Widodo, Zuhdi Ismail   +4 more
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Effect of Mo on Microstructure and Mechanical Properties of Corrosion-Resistant Tank Steel

Metals
To enhance the safe service performance of corrosion-resistant tank steel, it is of significant importance to develop novel materials characterized by both high strength-toughness and a low yield ratio.
Jun Hong, Yongqi Yang, Qingfeng Wang
doaj   +1 more source

Study of Bauschinger effect of acicular ferrite and polygonal ferrite through ex-situ interrupted bending tests in API X80 linepipe steels. [PDF]

Sci Rep, 2018
Kim DW, Sohn SS, Kim WK, Kim KS, Lee S.
europepmc   +1 more source

Influence of Finishing Forging Temperature and Forging Ratio on Precipitation of Ferrite in Non-Quenched and Tempered Bainitic Steel

Teshugang, 2009
Influence of finishing temperature 810 ~960 ℃ and forging ratio 3 -6 on precipitation of ferrite in bainitic steel-0. 16C, 0.91 Si, 1.98Mnt 1.03Cr, 0. 17Mo, 0. 065V, 0. 001 Ti has been studied.
彭金明, 汪宏斌, 罗毅, 吴晓春
doaj  

Mechanistic Insights into Cooling-Rate-Governed Acicular Ferrite Transformation Kinetics and Strengthening-Toughening Synergy in EH36 Heavy Steel Plate. [PDF]

Materials (Basel)
Yan C, Wang F, Sang R, Zhang Q.
europepmc   +1 more source

Acicular Ferrite Transformation under the Influence of V Precipitates

, 2008
Grain refinement is used as a strengthening mechanism in steels, because it enhances both strength and toughness at the same time. This knowledge was, and still is, a strong driving force for the development of new heavy forming practices where final grain has to be very small. But there is always the option of taking advantage of phase transformations
García Mateo, Carlos, Cornide, Juan, Capdevila, Carlos, García Caballero, Francisca, García de Andrés, Carlos   +4 more
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