Results 41 to 50 of about 855 (165)

Computer Simulation of Microsegregation of Sulphur and Manganese and Formation of MnS Inclusions while Casting Rail Steel

open access: yesArchives of Metallurgy and Materials, 2016
The quality of rail steel is conditioned by its high mechanic qualities, which greatly depend on the presence of undesired nonmetallic inclusions. The paper is devoted to the segregation of components, mainly sulphur, and the formation of manganese ...
Kalisz D.   +4 more
doaj   +1 more source

Micro non-metallic inclusion removal from molten steel with gas bubbles generated by the nitrogen absorbing and releasing method

open access: yes工程科学学报, 2015
The effects of vacuum processing time, nitrogen pressure and gas types on the total oxygen and micro non-metallic inclusions in molten steel were investigated to further improve the technology of micro non-metallic inclusion removal from molten steel ...
LI Kang-wei   +5 more
doaj   +1 more source

Progress on Control of Ultra-Low-Oxygen Content and Non-Metallic Inclusions in High Quality Bearing Steel

open access: yesTeshugang, 2013
The ultra-low-oxygen content and low rating of inclusions are key indexes for high quality bearing steel. The influence factors on control of ultra-low-oxygen content and nonmetallic inclusions in high quality bearing steel are analyzed including removal
杨虎林, 何平, 翟玉春
doaj  

Analysis of inner fold and bulge defects on J55 steel for oil casing pipe

open access: yesAIP Advances, 2019
Typical macroscopic and microscopic morphologies of inner fold and bulge defects of J55 oil casing pipe are observed, and inclusions and the metallographic structure near these defects are detected to obtain an understanding of the defect formation ...
Bosi Li   +4 more
doaj   +1 more source

A Study on Non-Metallic Inclusion in DQ Deep-Drawing Low Carbon Steel Casting Slab Produced by CSP Process

open access: yesTeshugang, 2020
For improving the problem of non-metallic inclusions in low carbon aluminum killed steel produced by CSP process at Jiuquan steel Co,with sampling at each phase of steelmaking and continuous casting,the study of inclusions in steel is carried out by ...
飞尚才, 蒋小霞, 苟宁年, 徐楠
doaj  

A Study on Non-Metallic Inclusion in 304 Stainless Steel Produced by Twin Roll Thin Strip Casting

open access: yesTeshugang, 2007
Large inclusions and ultra-fine inclusions in 304 stainless steel thin strip produced by twin roll strip casting have studied by scanning and transmission electron microscope. Results indicated that inclusions in thin strip were spheroidal compound oxide
黄福祥   +5 more
doaj  

Research on Intelligent Identification and Grading of Nonmetallic Inclusions in Steels Based on Deep Learning. [PDF]

open access: yesMicromachines (Basel), 2023
Zhu X   +10 more
europepmc   +1 more source

Effect of Nonmetallic Inclusion on Impact Toughness of High Strength Oil Casing

open access: yesTeshugang
The number, size, chemical composition and morphology of inclusions in continuous casting billet samples were analyzed using SEM and bulk sample electrolysis for high strength OCTG steel. The results show that the micro inclusions and large inclusions in
Deng Xuyan   +3 more
doaj  

Practice of Process for Increasing Ratio of Qualified 20CrMnTiH Gear Steel Products with Non-metallic Inclusion Examination

open access: yesTeshugang, 2009
20CrMnTiH gear steel is produced by EAF (tapping 45 t steel) -LF-CC process flow sheet al Special Steel Works, Bensteel. With controlling arc furnace liquid steel decarburizing amount ≥0. 25% C, insuring decarburizing rate 0. 02% C/min, adding 0.
刘昭
doaj  

Study on the Influence of Random Distribution of Inclusions on Gear Contact Fatigue Performance

open access: yesJixie chuandong, 2020
The existence of nonmetallic inclusions in gear materials can significantly reduce the contact fatigue strength of gears, and the research on the related mechanism can provide important guidance for the control of production quality and service ...
Bing Lei   +3 more
doaj  

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