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Study on inclusions of titanium

  • Study on Inclusions in Ti Stabilized Stainless Steel during

    The types and evolution of the inclusions in Ti stabilized (321) stainless steel during steelmaking and casting were investigated. The effect of Al, Ca and Ti as well as reoxidization on the inclusions was analyzed. The results showed that there are two kinds of

  • Valence of titanium and vanadium in pyroxene in refractory

    Valence of titanium and vanadium in pyroxene in refractory inclusion interiors and rims S.B. Simon a,*, S.R. Sutton a,b, L. Grossman a,c a Department of the Geophysical Sciences, 5734 S. Ellis Ave., The University of Chicago, Chicago, IL 60637, USA b Center for Advanced Radiation Sources, 5640 S.

  • Effect of titanium addition on the microstructure and

    Increasing the titanium content of the weld led to an increase in titanium within the inclusions, and at 230 ppm or more of titanium in the weld, Ti2 O3 and MnO and/or MnS were the main inclusion constituents. In the weld metals with very high titanium content

  • Study of the Influence of Inclusions on the Behavior of

    Despite the number of articles on the subject, the influence of inclusions on the behavior of nickel titanium shape memory alloys is still controversial. Numerical simulation can play a fundamental role in providing insight into this subject. As far as superelastic

  • A Study of Inclusions in Aluminum and Titanium Deoxidized 4130

    A Study of Inclusions in Aluminum and Titanium Deoxidized 4130 R.B. Tuttle *, S. Kottala Saginaw Valley State University, 209 Pioneer Hall, 7400 Bay Rd., 48710 University Center, United States

  • 2D automated SEM and 3D X-ray computed tomography

    The inclusions are categorized as calcium aluminates, titanium nitrides, and other inclusions with an average size of 1.66, 1.52, and 1.31 µm, respectively. To estimate the actual amount of inclusions present and to understand their 3D morphologies, XCT

  • Effect of Ti-containing inclusions on the nucleation of

    In the present study, the influence of Ti-containing inclusions on the development of acicular ferrite microstructure and mechanical properties in the multipass weld metals has been studied. Shielded metal arc weld deposits were prepared by varying titanium content

  • Effect of Ti Content on the Characteristics of Inclusions in

    Titanium influence significantly on the morphology, size distribution and composition of oxide inclusions in AlCa deoxidized steels, and the inclusions characteristics vary with titanium content. Liquid oxide inclusions are promptly modified by titanium.

  • Effect of nonmetallic inclusions on fatigue properties of

    This study investigated the effects of the types and length of nonmetallic inclusions on fatigue properties in rotating bending fatigue testing of Ti-Ni alloy fine wire. It was fabricated to include titanium carbides Ti(C,O) and titanium oxides Ti 4 Ni 2 O x as either single phases or a mixture of both phases as nonmetallic inclusions in Ti-Ni alloy.

  • 8SunStudy on Microstructure and Mechanical Properties of Titanium

    Study on Microstructure and Mechanical Properties of Titanium-bearing High-strength Hot-rolled Steels for Enamelling Quanshe Sun(1), Faliang Jv(2), Weizhong Jiang(3) (1) R & D Center, Baoshan Iron and Steel Co., Ltd., Shanghai 201900, China

  • An experimental study of non-metallic inclusions precipitation and

    Bizyukov, Pavel, "An experimental study of non-metallic inclusions precipitation and its effect on impact toughness variations in low alloy steel subjected to complex deoxidation" (2017). Electronic Theses and Dissertations . 368.

  • Application of Optical Floating Zone Method to Dissolution Kinetics of Inclusions

    study the dissolution behavior of a single oxide particle in slag. A majority of these studies[28,29,3134,36,3840,42,43] used the inclusion types that are available for purchase. However, the inclusion types with complex chemistry such as CaO.6Al 2O 3, CaO.2Al 2O

  • Large Inclusions in Plain-Carbon Steel Ingots Cast by Bottom

    1 Will be submitted to ISIJ International Large Inclusions in Plain-Carbon Steel Ingots Cast by Bottom Teeming By Prof. Lifeng Zhang (correspondence author) Department of Materials Science and Engineering Norwegian University of Science and Technology

  • (PDF) Microstructural and Inclusion Characteristics of

    of 0.002 to 0.091 wt.% were used in this study. The nucleation event of the inclusions was examined using scanning electron % of inclusions were covered with a titanium-oxide layer, and the

  • Effect of titanium additions to low carbon, low manganese steels

    present study, titanium was added to a low carbon, low manganese steel which contained approximately 0.01 wt% sulphur in order to study the effect of titanium on sulphide formation in the absence of other alloying elements. Microscopic assessment of

  • Effect of Titanium Carbide Inclusions on Morphology of

    The effect of titanium carbide (TiC) on morphology of low-carbon steel martensite was studied by means of electron backscatter diffraction (EBSD). The nucleation and growth of new morphology subunits such as packet, block and sub-block are observed in the area

  • Nitride inclusions in titanium ingots: A study of possible

    1/8/1973· An experimental program is being conducted to investigate possible sources of nitride defects in the production of magnesium-reduced titanium sponge, and to determine if such defects are capable of surviving consumable-electrode arc melting. Pilot plant

  • Experimental Study on the Behavior of TiN and Ti O Inclusions in

    Experimental Study on the Behavior of TiN and Ti 2 O 3 Inclusions in Contact with CaO-Al 2 O 3-SiO 2-MgO Slags S.K.MichelicandC.Bernhard ChairofFerrousMetallurgy,MontanuniversitaetLeoben,Leoben,Austria

  • Effect of titanium on the near eutectic grey iron

    An SEM and TEM study wereperformed in order to observe the effect of Ti on the microstructure of the alloys in smaller scale. Furthermore, the microstructure and thermal analysis are related and discussed. Keywords: Grey iron, titanium, SEM, TEM.

  • A Study of Inclusions in Aluminum and Titanium

    The size range of titanium inclusions was found to be more than that of the non-metallic inclusions from 4130 base alloy heat. Titanium inclusions from the filter and polished samples were round in shape. TiC and TiN inclusions were not found in the electrolytic

  • Effect of inclusions on the solidification structures of

    The solidified grain size decreased with an increasing content of titanium. In steel samples with large solidified grains, the inclusions were generally a two-phase system in which the titanium oxide was precipitated in the liquid TiOx Cr2 O3 SiO2 matrix during

  • Effect of electroslag remelting on the non-metallic inclusions in

    EffEct of ElEctroSlag rEMEltIng on thE non-MEtallIc IncluSIonS In h11 tool StEEl J. Burja a, *, f. tehovnik a, M. godec a, J. Medved b, B. Podgornik a, r.Barbič caInstitute of Metals and Technology, Ljubljana, Slovenia, bUniversity of Ljubljana, Faculty of Natural Sciences and Engineering, Ljubljana, Slovenia

  • The role of titanium in the initiation of localized

    A series of EDX line scans revealed the composition of these inclusions to be mainly titanium, niobium and nitrogen (Fig. 1b/d, c/e), with most inclusions being TiN, in agreement with previous

  • Study on the growth and morphology evolution of

    Formation of nano-scale titanium oxides is a desirable result in the deoxidation process of steelmaking. However, the nucleation of nano-scale titanium oxide inclusions remains unknown up to now because of the difficulty in observing and detecting inclusions in

  • Study on the Crack Forming during Cold Forging Process

    The important factors that affect the formability of the cold forging steel are its surface quality and internal defects. The cracking phenomenon was taken place during cold forging of ML25Mn steel. In this study, microstructural analyses were made on around the

  • TiN Inclusion Formation during the Solidification of Stainless Steel

    TiN Inclusion Formation during the Solidification of Stainless Steel by Tomomitsu Inada S.B., University of Tokyo, Japan (1990) Submitted to the Department of Materials Science and Engineering in partial fulfillment of the requirements for the degree of MASTER

  • Inclusion Precipitation in Superalloys

    Figure 3 shows the results of this calculation in IN718 and demonstrates that at the point of initiation of primary carbide precipitation (1280 to 1290C), the titanium concentration has risen to 4 wt%. Assuming that no additional correction is

  • Feasibility Study of Thermal-Elastographic Detection of Nonvoided Hard Alpha Inclusions in Titanium

    DOT/FAA/AR-05/31 Office of Aviation Research Washington, D.C. 20591 Feasibility Study of Thermal-Elastographic Detection of Nonvoided Hard Alpha Inclusions in Titanium Alloys September 2005 Final Report This document is available to the U.S. public

  • The Role of Inclusions and Austenite Grain Size on Intragranular

    The Role of Inclusions and Austenite Grain Size on Intragranular Nucleation of Ferrite in Medium Carbon Microalloyed Steels. Carlos Capdevila, Francisca G. Caballero, Carlos García-Mateo and Carlos García de Andrés Department of Physical Metallurgy, Centro

  • TEM study of solid titanium oxides inclusions in steel melt at

    TEM STUDY OF SOLID TITANIUM OXIDES INCLUSIONS IN STEEL MELT AT 1600 C 293 Introduction Titaniums great affinity for oxygen results in its use as one of the strongest deoxidizing agents in steel making. Therefore, it is desirable to establish its

  • MacSphere: Fundamentals of micro-particle removal by

    To reduce the effects of aluminum titanate type inclusions, they can be either modified or removed. The current study focused on the removal of Al2O3, TiO2, and Al2TiO5 inclusions by dissolving them in slag in the temperature range of 1430 1600 C using a

  • Experimental Study on the Behavior of TiN and Ti2O3

    The present study focused on the behavior of TiN and Ti 2 O 3 inclusions in the steel 1.4520 in contact with two different slag compositions. Thermodynamic calculations and different experimental techniques are used to study the reactions and interactions at the steel-slag interface.

  • Dissolution of High Density Inclusions in Titanium Alloys

    processing of titanium alloy ingots is the contamination of these products by exogenous inclusions which, if not elim-inated, might greatly alter the mechanical properties of the ingot. Two types of inclusions are usually identified in tita-nium alloys: High Density

  • Rutile Inclusion In Gemstones Gem Rock Auctions

    Rutile Inclusion In Gemstones What is rutile? It is a mineral that is primarily composed of titanium dioxide. It is the most common, natural form of titanium oxide. Its among the highest visible refractive indices of any crystal known to man. Its refractive index is

  • Nonmetallic Inclusions Article about Nonmetallic

    (in steel and alloys), mainly chemical compounds of metals with oxygen, sulfur, nitrogen, and other unavoidable nonmetallic impurities, which are present as a separate phase. Nonmetallic inclusions impair the quality of metal, because they may be failure centers

  • (PDF) Inclusions in melting process of titanium and

    This paper summarizes melting methods of titanium and titanium alloy, such as vacuum arc melting (VAR) and electron beam cold hearth melting (EBCHM), and the related inclusions

  • NIOSHTIC-2 Publications Search - 10010708 - Nitride

    Alpha-stabilized inclusions have been found in ingots produced from sponge made from dross- contaminated magnesium and from sponge contaminated by air during vacuum distillation. Although the nitride in the sponge is in the form of a fine powder, powder pockets, or soft friable lumps, it is capable of surviving single and in some cases, double arc melting.

  • Study on Inclusions of Titanium-Stabilized Stainless Steel-

    In this paper,two types of defects on the hot rolling plate,defined as type A and type B respectively,have been analyzed on the continuous casting of titanium-stabilized stainless steel(1Cr18Ni9Ti or 06Cr18Ni10Ti).The experimental results showed that the two types

  • FEASIBILITY STUDY OF THERMAL-ELASTOGRAPHIC DETECTION OF NON-VOIDED HARD-ALPHA INCLUSIONS IN TITANIUM

    FEASIBILITY STUDY OF THERMAL-ELASTOGRAPHIC DETECTION OF NON-VOIDED HARD-ALPHA INCLUSIONS IN TITANIUM ALLOYS A thesis submitted to the Division of Research and Advanced Studies of the University of Cincinnati in partial fulfillment of

  • Morphology and Microstructure of Magnetite and Ilmenite Inclusions

    The sample chosen for this study exhibits not only large crystals of ilmenite and magnetite, but also small iron/titanium oxide needles within crystals of plagioclase and clinopyroxene. Here we investigate the morphology of the oxide inclusions, as well as the

  • EFFECT OF ALUMINA AND TITANIUM NITRIDES INCLUSIONS ON

    inclusions founded are too small in size. Therefore, we manage to develop a specific procedure for the study of such inclusions. The different types of inclusions encountered are oxides, titanium nitrides, and manganese sulphides. Studying the effect on

  • Inclusions in melting process of titanium and titanium

    This paper summarizes melting methods of titanium and titanium alloy, such as vacuum arc melting (VAR) and electron beam cold hearth melting (EBCHM), and the related inclusions formed when using these melting methods. Low-density inclusions are resulted from contamination of air, and high-density inclusions are caused by refractory elements. The formation process of inclusions was analysed

  • of Inclusions and their Development during Secondary Steelmaking

    Formation of Inclusions and their Development during Secondary Steelmaking Mikael Thunman Doctoral Thesis School of Industrial Engineering and Management iii And we should consider every day lost on which we have not danced at least once. And we should

  • Effect of titanium addition on the microstructure and

    The effect of titanium addition on the microstructure and toughness of weld metals in an API 5L-X70 pipeline steel produced by submerged arc welding technique has been investigated. Based on the obtained results, the conclusions are as follows: 1.

  • Study of Non-Metallic Inclusions in Alloy 825

    Study of Non-Metallic Inclusions in Alloy 825 Hans Kellner Doctoral Thesis Stockholm 2017 Department of Material Science and Engineering Division of Processes Royal Institute of Technology SE-100 44 Stockholm Sweden Akademisk avhandling som med

  • Research Article Inclusions and Microstructure of Steel Weld Deposits with Nanosize Titanium

    Research Article Inclusions and Microstructure of Steel Weld Deposits with Nanosize Titanium Oxide Addition CuixinChen,HaitaoXue,HuifenPeng,LiangYan,LeiZhi,andSixuWang School of Materials Science and Engineering, Hebei University of Technology