effect of slag on oxide inclusions in carburized bearing

Characteristics of Al2O3, MnS, and TiN inclusions in

The Al2O3, MnS, and TiN inclusions in bearing steel will deteriorate the steels mechanical properties. Therefore, elucidating detailed characteristics of these inclusions in consumable electrode during the electroslag remelting process is important for achieving a subsequently clean ingot. In this study, a confocal scanning violet laser microscope was used to simulate the remelting process

(PDF) 13 - Kunz - LADLE REFRACTORIES FOR CLEAN STEEL

LADLE REFRACTORIES FOR CLEAN STEEL PRODUCTION Kunz Gunnar, RHI Asia-Pacific SUMMARY:The development of sophisticated metallurgical processes in the secondary metallurgy nowadays allows the production of Clean Steels with lowest levels of (PDF) ONE MACROSTRUCTURE 1-1 INTRODUCTION Etching is started with a solution of one part Stead's reagent plus three parts alcohol and one-quarter part water for 45 s. The sample is rinsed, and 5 to 10 drops of a 50-mL solution of 10% ammonia plus 10 drops of H 2 0 2 is poured on the surface. The copper precipitate is removed by wiping with cotton.

ASTM International - Withdrawn Standards

B181-50 Method of Effect of Controlled Atmospheres Upon Alloys in Electric Furnaces (Withdrawn 1969) C358-66 Specification for Slag Cement (Withdrawn 1967) C1336-96(2014) Standard Practice for Fabricating Non-Oxide Ceramic Reference Specimens Containing Seeded Inclusions (Withdrawn 2018) Cleanliness improvement and microstructure refinement of Mar 01, 2020 · 1. Introduction. The inclusion has a harmful effect on the performance of steel, especially the large size inclusion, which dramatically degrades the toughness and strength of steel , , .In order to ensure running reliability, the cleanliness is highly demanded for the high-end alloy steel serving in harsh environment for a long time, namely, the total oxygen content and inclusion size in

Crack initiation in the very high cycle fatigue regime of

Both effects can be related to a size effect caused by the so-called protected volume, which is about 21% of the total cross section for batch 2 and 41% for batch 1. In general, the calculated fatigue limit w lies well below the determined crack-initiation stress amplitude ai , DOST SciNet-PhilEffects of oxide particles and solute elements on austenite grain growth in Fe-O.05mass%C and Fe-10mass%Ni alloys (STII) Effects of secondary flow on the electromagnetic separation of inclusions from aluminum melt in a square channel by a solenoid (STII)

Effect of Refining Slag Composition on Inclusions in

Abstract The effect of the refining slag composition on the inclusions in molten steel was studied in MgO crucible by using MoSi 2 furnace. The experimental steel was heavy rail steel and SiCaBa alloy was used as the deoxidizer. Effect of carburized layer on rolling contact fatigue of Dec 31, 1995 · Results of investigations of rolling contact fatigue life of 52100 ball bearing steel for two groups of specimens, carburized and non-carburized, are presented in the paper. A carburized layer improves the contact fatigue life ten times, when L{sub 10} lives are compared, or improves the fatigue strength by {approximately}18%, when load

Effect of slag composition on desulfurization and

Effect of slag composition on desulfurization and inclusion modication during ladle furnace rening Xin Hao, Xin-hua Wang and Wan-jun Wang School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing100083, P.R. China Key words: Effect of slag on oxide inclusions in carburized bearing Effect of slag on oxide inclusions in carburized bearing steel during industrial electroslag remelting Relationship between copper content of slag and matte in the SKS copper smelting process Feasibility of aluminum recovery and MgAl_2O_4 spinel synthesis from secondary aluminum dross

Effect of slag on oxide inclusions in carburized bearing

Translate this pageEffect of slag on oxide inclusions in carburized bearing steel during industrial electroslag remelting. Industrial experiments with three types of slags were performed to investigate the effect of slag on oxide inclusions during electroslag remelting (ESR) process. G20CrNi2Mo bearing steel was used as the consumable electrode and remelted using Efficiency of Inclusion Absorption by Slags during One of the functions of secondary refining in steelmaking is to remove non-metallic inclusions produced through deoxidation of the steel bath during the process. Removal of these inclusions occurs in three fundamental stages:flotation, separation and dissolution of the inclusions in supernatant slag. Given that dissolution is subject to the action of slag, this study aims to clarify the

Evolution of Oxide Inclusions in Si-Mn-Killed Steel During

Jun 15, 2019 · OSTI.GOV Journal Article:Evolution of Oxide Inclusions in Si-Mn-Killed Steel During Protective Atmosphere Electroslag Remelting Figure 4 from Effect of Slag on Inclusions During DOI:10.1007/s11663-014-0070-7 Corpus ID:136591371. Effect of Slag on Inclusions During Electroslag Remelting Process of Die Steel @article{Dong2014EffectOS, title={Effect of Slag on Inclusions During Electroslag Remelting Process of Die Steel}, author={Yan-wu Dong and Z. Jiang and Yulong Cao and A. Yu and Dong Hou}, journal={Metallurgical and Materials Transactions B},

International Journal of Minerals, Metallurgy and

Mar 08, 2019 · Effect of slag on oxide inclusions in carburized bearing steel during industrial electroslag remelting Authors (first, second and last of 5) Shi-jian Li; Guo-guang Cheng; Xin-yan Jiang; Content type:OriginalPaper; Published:08 March 2019; Pages:291 - 300 Manufacturing - ASTM InternationalNov 01, 2017 · STP160020170011:The Effect of Nonmetallic Inclusions on Bending Fatigue Performance in High-Strength Steels - 01 November 2017. STP160020160145:Nonmetallic Inclusion Bonding in Bearing Steel and the Initiation of White-Etching Cracks - 01 November 2017

Reaction mechanisms between molten CaF 2 -based slags

May 12, 2020 · The reaction mechanisms between molten 9CrMoCoB steel and the slags with different B 2 O 3 contents were deduced based on the composition of the steel and slag samples at different reaction times. Results show that B content in the steel can be controlled within the target range when the B 2 O 3 content is 0.5wt% and the FeO content ranges from Steel Quality Requirements for Heavy Duty Off-Highway The bearing industry has long recognized that reducing the total number and size of large aluminum oxide inclusions proportionately increases contact fatigue life. Improved geometric accuracy and surface finish on heavy duty off-highway carburized gearing has increased the significance of oxide inclusions in nucleating contact and bending fatigue

Subject Index - ASTM

Electro slag remelting, 187 carbon steel, Swedish standard SS 111116, 254 inclusion elimination, 161 steel oxygen content and fatigue properties, 159 step-down test results, 364 Fatigue 8620 309-size roller bearings, life dis­ tribution, 13 bearing life, major advances, 6 carbide effects, 20-25 carburized steels, 67 controlled fiber effects, 25-28Effect of slag on oxide inclusions in carburized bearing Industrial experiments with three types of slags were performed to investigate the effect of slag on oxide inclusions during electroslag remelting (ESR) process. G20CrNi2Mo bearing steel was used as the consumable electrode and remelted using a 2400-kg industrial furnace. The results showed that most inclusions in the electrode were low-melting-point CaO-MgO-Al<sub>2</sub>O<sub>3</sub>.

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