oxidation of ni Rolling

Study of thermal oxidation of NiO on pure Ni, Ni-10% Cr ...

Study of thermal oxidation of NiO on pure Ni, Ni-10% Cr ...

Abstract: In this work, the thermal oxidation of NiO has been studied at different annealing temperatures and oxygen partial pressure. The oxidation properties of Rolling Biaxial Textured Substrate (RABiTS) of pure Ni, Ni-9% V and Ni-10% Cr have been investigated. Oxidation of the substrates either as rolled and recrystallised or as rolled, recrystallised and chemically etched states have been ...Cited by: 13Publish Year: 2001Author: Z. Lockman, W. Goldacker, R. Nast, B. de Boer, J. MacManus-Driscollsp.info Oxidation Kinetics of a NiPtTi High Temperature Shape ...1.2 Oxidation of Ni-Ti Alloys With regard to HTSMA, there is a specific concern that ... been a number of oxidation studies, with the idea being that SMA characteristics are modified by oxidation that occurs during hot rolling or that pre-oxidation may offer a stabilizing effect against corrosion for in vitro SMA devices, such asCited by: 4Publish Year: 2007Author: James L. Smialek, Donald L. Humphrey, Ronald D. Noebesp.info Why is ni in the + 2 oxidation state?Ni forms octahedral, square planar and tetrahedral complexes in +2 oxidation state. It acquires stability through chelation and intramolecular hydrogen bonding. In [Ni (DMG)2] the nickel is in the +2 oxidation state and to have a square planar geometry because of chelation the pairing of electrons takes place.See all results for this questionsp.info How does cold rolling affect austenitic steel oxidation?Nevertheless, there are few studies only focusing on the influence of cold rolling on the oxidation behavior of modified 4Al alumina-forming austenitic steel. In this study, the high-temperature oxidation performance of 30 % cold-rolled modified 4Al AFA steel at 700 °C in dry air was investigated compared with as-received AFA steel.See all results for this question

What is the oxidation state of Ni DMG 2?


What is the oxidation state of Ni DMG 2?

In [Ni (DMG)2] the nickel is in the +2 oxidation state and to have a square planar geometry because of chelation the pairing of electrons takes place.See all results for this questionsp.info What is the oxidation behavior of AFA steel?The oxidation behavior and mechanism of as-received and 30 % cold-rolled alumina-forming austenitic (AFA) steel were investigated in dry air at 700 °C. The results show that the mass gain per unit area curves of as-received and 30 % cold-rolled steels subject to near-parabolic law before 100 h oxidation time.See all results for this questionsp.info Effect of electroplastic rolling on deformability and ...Jan 01, 2013 · Ni 47 Ti 44 Nb 9 alloy is not the exception and often rolled at about 850 °C. Tao et al. (2005) also found that much oxygen is absorbed into the Ni 47 Ti 44 Nb 9 alloy in the processing, which leads to the oxidation of surface and produces oxide impurities due to the high temperature during rolling and the activation of Ti element. As a result ...Cited by: 27Publish Year: 2013Author: Rufei Zhu, Guoyi Tang, Sanqiang Shi, Mingwang Fusp.info Study of the Surface Oxidation Epitaxy of Pure Ni ...The growth of nickel oxide (NiO) on {100}<001> cube textured, rolling assisted biaxially textured substrates (RABiTS) of pure nickel was studied with respect to the oxidation time (tox) and ...

On the role of surface deformation in the oxidation of ...


On the role of surface deformation in the oxidation of ...

Aug 15, 2020 · rolling with 90 % reduction ... The oxidation of Ni in this context remains unclear at this stage. 5. Conclusions. This work illustrates the role of the microstructure in the beneficial effect of cold work on selective oxidation. The atypical Cr depletion profiles measured here reflect an abrupt change in diffusion properties between the ...Cited by: 3Publish Year: 2020Author: Thomas Gheno, Clara Desgranges, Laure Martinellisp.info High-temperature air-oxidation of NiCoCrAlx medium …Nov 01, 2021 · One is the lowest oxidation rate to grow a dense alumina layer, which has a typical parabolic oxidation rate constant (k p value) of 9.4 × 10 −14 (g 2 /cm 4-s) during air-oxidation of Ni 3 Al, when compared to that of the oxidation of pure Cr to form chromia at 900 °C (3.0 × 10 −13 g 2 /cm 4-s) , .sp.info Isothermal oxidation behavior of W‐free Co–Ni–Al‐based ...Nov 02, 2021 · The isothermal oxidation behavior of Co–Ni–Al-based superalloy with the addition of Mo and Cr in dry air at 1073 and 1173 K was investigated. The results showed that similar three-layer oxides structures were composed of Co-containing oxides, complex oxides rich in Co and Al, and Al 2 O 3 layer formed on both 2Mo and 2Cr Co–Ni–Al-based ...sp.info Low Coefficient of Thermal Expansion (CTE) Nickel Base ...oxidation resistance of Ni-base alloys with CTE on the order of 12.5x10-6/oC. Alloys based on the composition Ni-(18-22wt%) Mo-12Cr-1Ti were readily rolled into 1 mm strip. Modifications to this base composition, such as increasing Cr or Ti content adversely affected the ability to …

High-temperature oxidation behavior of modified 4Al ...


High-temperature oxidation behavior of modified 4Al ...

Mar 30, 2021 · Nevertheless, there are few studies only focusing on the influence of cold rolling on the oxidation behavior of modified 4Al alumina-forming austenitic steel. In this study, the high-temperature oxidation performance of 30 % cold-rolled modified 4Al AFA steel at 700 °C in dry air was investigated compared with as-received AFA steel.sp.info (PDF) Effect of Si on High-Temperature Oxidation of Steel ...surface defects caused by hot rolling are related to oxidation in the reheating furnace. One of these is. the meltin g of eutectic FeO/Fe. 2. SiO4 during reheating over 1170°C giving as a result ...sp.info Interface formation and bonding mechanisms of hot-rolled ...Apr 05, 2019 · Then the other elements of Si, Mn, Cr, Fe, Ni take part in the oxidation system. ... Subsequently, the D i (diffusion coefficient) of Cr and Ni elements in γ-Fe at the rolling temperature of 1200 °C can be calculated by Eq. to be approximately 2.53 × 10 −14 and 2.53 × 10 −15 m 2 /s.sp.info V%HWZHHQ rDQG r&The oxidation of Ni-Cr-AI alloys in 0.1 atm of oxygen has been studied at ... countered during cold-rolling. Most of the alloys were single phase -y and the remainder exhibited either two phase, 7 -t- ~' or three phase 7 -}- ~' + aCr structures in agreement with the Ni'Cr-A1 phase diagram (10). ...

Oxidation or Nitridation Behavior of Pure Chromium and ...


Oxidation or Nitridation Behavior of Pure Chromium and ...

Oxidation or Nitridation Behavior of Pure Chromium and Chromium Alloys Containing 10mass%Ni or Fe in Atmospheric Heating Kaori Taneichi 1;*, Takayuki Narushima2, Yasutaka Iguchi and Chiaki Ouchi 1Department of Materials Processing, Tohoku University, Sendai 980-8579, Japan 2Tohoku University Biomedical Engineering Research Organization (TUBERO), Sendai 980-8579, Japansp.info Early oxidation stages of a Co-Cr-Fe-Mn-Ni-Si complex ...Sep 01, 2021 · The effect of Ni on chromia formation in Fe-Cr-Ni alloys is complex and may depend on alloy composition, oxidation temperature and oxidation atmosphere [51,52]. Ni in the oxide is not expected to favor the formation of corundum-type oxide, because Ni 2+ cations would need to substitute Fe 3+ or Cr 3+ in (Fe,Cr) 2 O 3 [ 53 ].sp.info Corrosion behaviour of different hot rolled steelsand oxidation behaviour (high C, Si and Ni contents) and the HSS alloys with a 6– 8% Cr content, which allows a better wear resistance and hardness due to the pres-ence of chromium carbides. In this work, a comparison between the oxidation–corrosion behaviour of the new graphite chromium iron and other alloys used as hot rolling rolls is made.sp.info A Study on the Characteristics of Oxide Scale while Hot ...3.4.3 Hot rolling experiment procedures 47 3.5 Summary 51 Chapter 4 Oxidation Behavior of Mild and Low Carbon Steels 53 4.1 Introduction 53 4.2 Oxide scale surface features of mild steel 54 4.2.1 3-D surface topography 54 4.2.2 Influence of oxidation parameters on surface profile 56

Effect of electroplastic rolling on deformability and ...


Effect of electroplastic rolling on deformability and ...

Among them, one of the most important and successful applications is the pipe joint [5][6][7]. NiTiNb alloys, especially those with a nominal composition of Ni 47 Ti 44 Nb 9 (at%), have attracted ...sp.info High Temperature Oxidation Behavior of Fe- and Ni-Based ...Apr 01, 2021 · The U.S. Department of Energy's Office of Scientific and Technical Informationsp.info The Role of Oxygen-Grain-Boundary Diffusion During ...The Role of Oxygen-Grain-Boundary Diffusion During Intercrystalline Oxidation and Intergranular Fatigue Crack Propagation in Alloy 718 Ph. E.-G. Wagenhuber1, V. B. Trindade1, U. Krupp1* 1Institut für Werkstofftechnik, Universität Siegen, 57068 Siegen, Germany *corresponding author: [email protected] Keywords: dynamic embrittlement, intergranular oxidation, intergranular fracture ...sp.info Surface oxidation of cube-textured Ni–Cr for the formation ...The surface oxidation epitaxy behaviour of the rolling assisted biaxially textured substrates of cube-textured Ni–10%Cr and Ni–13%Cr foils were investigated, in air, at 1050 °C.

What Is The Hybridization Of Ni In Ni Dmg 2 - QnA


What Is The Hybridization Of Ni In Ni Dmg 2 - QnA

The hybridization of Ni in [Ni(DMG)2] is dsp2. Ni forms octahedral, square planar and tetrahedral complexes in +2 oxidation state. It acquires stability through chelation and intramolecular hydrogen bonding. In [Ni(DMG)2] the nickel is in the +2 oxidation state and to have a square planar geometry because of chelation the pairing of electrons takes place.sp.info Effect of Si on High-Temperature Oxidation of Steel during ...An oxide scale layer always forms at the strip surface during the hot rolling process. As a consequence, de-scaling and pickling operations must be performed prior or after hot rolling. Many surface defects caused by hot rolling are related to oxidation in the reheating furnace. One of these is the melting of eutectic FeO/Fe2SiO4 during reheating over 1170°C giving as a result red scale ...sp.info Effects of Alloying Elements on High-Temperature Oxidation ...Jul 20, 2011 · As mentioned earlier, the high-temperature oxidation behavior, Cr activity calculation, and hot-rolling process were investigated on five different kinds of stainless steels with varying contents of Zr, Ni, Cu, and Si, from which the effects of alloying elements on sticking are summarized as follows:Cited by: 4Publish Year: 2012Author: Dae Jin Ha, Jong Seog Lee, Nack J. Kim, Nack J. Kim, Sunghak Leesp.info A Sulfidation-and Oxidation-Resistant Ferritic Stainless ...the quaternary system Fe-Cr-Ni-Al. Pri­ marily, it has a two-phase microstructure of the intermetallic compound B-NiAI dis­ persed in a solid solution of Cr, Ni, and Al in a-Fe. Both a-Fe - and- B-NiAI are cubic and have nearly identical lattice parameters. While no …

Epitaxial NiO buffer layer by chemical enhanced surface ...


Epitaxial NiO buffer layer by chemical enhanced surface ...

The surface oxidation epitaxy behaviour of the rolling assisted biaxially textured substrates of cube-textured Ni–10%Cr and Ni–13%Cr foils were investigated, in air, at 1050 °C.sp.info High-temperature oxidation behavior of modified 4Al ...The oxidation behavior and mechanism of as-received and 30 % cold-rolled alumina-forming austenitic (AFA) steel were investigated in dry air at 700 °C. The results show that the mass gain per unit area curves of as-received and 30 % cold-rolled steels subject to near-parabolic law before 100 h …sp.info The Analysis of the Residual Stress Evolution during ...Ni-base superalloys are dedicated to the usage at elevated temperature. However, exposing the Ni-based superalloys to high temperature results in their oxidation. So far, not a single work on the studies of the residual stress evolut ion in the Ni-based superalloys during cycling oxidation at high temperature was performed. Thus in the presentsp.info CN103205605A - High-temperature-oxidation-resistant ...The invention relates to a high-temperature-oxidation-resistant casting nickel-based alloy and a preparation method thereof. The alloy comprises the following compositions in percentage by weight: 0.1-0.3% of C, 47-51% of Ni, 26-29% of Cr, 0.8-1.5% of Si, 0.5-0.8% of Nb, 0.5-1.5% of Mn, 0.3-1.0% of Mo, 4-7% of W, and the balance of Fe.

Related searches for oxidation of ni Rolling


Related searches for <b>oxidation of ni Rolling</b>

ni oxidation numberni oxidation state

Message

You may also leave contact information, we will contact you as soon as possible!

Contact Us
Henan Eddie Iron & Steel Co., Ltd

Tel: 0086(371)86.15.18.27
E-Mail: [email protected]
Address: Development Zone, Zhengzhou, China