microstructural and corrosion characteristics of quenched

microstructural and corrosion characteristics of quenched

(PDF) Comparative Study of Microstructural Characteristics

Comparative Study of Microstructural Characteristics and Hardness of -Quenched Zr702 and Zr2.5Nb Alloys Article (PDF Available) in Materials 12(22):3752 · November 2019 with 66 Reads

(PDF) Pitting susceptibility of induction-quenched

ized corrosion than the water-quenched one, as indicated. Microstructural and corrosion characteristics of Quenched and Self-Tempered (QST) steel reinforcing bars. Article. Jan 2020; A study of the microstructural and mechanical properties This work is concerned with track spring components manufactured by Pandrol from a SiMn alloy in the quenched and tempered condition. For many years low to medium carbon based spring steel has been manufactured via an oil quench temper route producing components with suitable mechanical and microstructural properties. The current problem facing the spring manufacturer with the traditional

Comparative Study of Microstructural Characteristics and

In this study, two commercial Zr alloys (Zr702 and Zr-2.5Nb) were subjected to the same -quenching treatment (water cooling after annealing at 1000 °C for 10 min). Their microstructural characteristics and hardness before and after the heat treatment were well characterized and compared by electron Comparative Study of Microstructural Characteristics and In this study, two commercial Zr alloys (Zr702 and Zr2.5Nb) were subjected to the same -quenching treatment (water cooling after annealing at 1000 °C for 10 min). Their microstructural characteristics and hardness before and after the heat treatment were well characterized and compared by electron channel contrast (ECC) imaging, electron backscatter diffraction (EBSD) techniques, and

Comparative Study of Microstructural Characteristics and

In this study, two commercial Zr alloys (Zr702 and Zr2.5Nb) were subjected to the same -quenching treatment (water cooling after annealing at 1000 °C for 10 min). Their microstructural characteristics and hardness before and after the heat treatment were well characterized and compared by electron channel contrast (ECC) imaging, electron backscatter diffraction (EBSD) techniques, and Correlation between microstructure and - ScienceDirectApr 01, 2002 · To investigate the correlation between microstructure and corrosion characteristics of ZrNb alloy, the microstructural observation and corrosion test with the change of cooling rate from beta temperature and the variation of Nb content were performed. The oxide characterization was also carried out by synchrotron XRD and TEM.

Correlation between microstructure and corrosion behavior

To investigate the correlation between microstructure and corrosion characteristics of Zr-Nb alloy, the microstructural observation and corrosion test with the change of cooling rate from beta temperature and the variation of Nb content were performed. The oxide characterization was also carried out by synchrotron XRD and TEM. When the Nb is contained less than solid solution limit (0.6 wt Correlation between microstructure and corrosion behavior To investigate the correlation between microstructure and corrosion characteristics of Zr-Nb alloy, the microstructural observation and corrosion test with the change of cooling rate from beta temperature and the variation of Nb content were performed. The oxide characterization was also carried out by synchrotron XRD and TEM. When the Nb is contained less than solid solution limit (0.6 wt

Correlation of microstructural and corrosion

It was observed that the microstructure, shape memory effect and corrosion characteristics are highly sensitive to the composition variations. It was found that the highest strain recovery was with 0.7% addition of Mn or Ti. This may be attributed to the presence of precipitation with a high volume fraction and the grain refinement. Crystals Free Full-Text Microstructural and In Situ The article concerns the rarely described magnetic domain structure of Heusler alloys in the case of a single crystal [100]-oriented Co-Ni-Ga alloy. The structure of the magnetic domains of the alloy was compared in two states:in the quenched and additionally aged state. Ageing led to precipitation of the spherical phase ’ nanoparticles (Co-rich, FCC lattice with a = 0.359 nm).

Crystals Free Full-Text Microstructural and In Situ

The article concerns the rarely described magnetic domain structure of Heusler alloys in the case of a single crystal [100]-oriented Co-Ni-Ga alloy. The structure of the magnetic domains of the alloy was compared in two states:in the quenched and additionally aged state. Ageing led to precipitation of the spherical phase ’ nanoparticles (Co-rich, FCC lattice with a = 0.359 nm). Effect of Beta Heat Treatment on Microstructure and characteristics of the phase transformation during quenching and to elucidate the effect of the microstructural variation on the nodular corrosion susceptibility of Zircaloy-4. For the sake of this, the dependence of the nodular corrosion on the cooling rate was investigated and the nodular corrosion

Effect of Beta Heat Treatment on Microstructure and

characteristics of the phase transformation during quenching and to elucidate the effect of the microstructural variation on the nodular corrosion susceptibility of Zircaloy-4. For the sake of this, the dependence of the nodular corrosion on the cooling rate was investigated and the nodular corrosion Effect of Manufacturing Process on Corrosion characteristics of the homogenous grain and precipitates, since it is well known that corrosion properties of Zr alloys is highly depended on the microstructural characteristics. Fig. 2 shows the optical microstructures of HANA-alloy with different manufacturing process. Their microstructural characteristics were largely changed by

Effect of Microstructural Characteristics on Mechanical

Nov 01, 2019 · To improve the mechanical properties of hot-rolled ferritic stainless steel (SUS430), the microstructural characteristics of SUS430 were changed using a heating process under various conditions. The hardness of SUS430 decreased upon the increase in the heating temperature to 900 °C, and the hardness increased when the sample was heated to temperatures greater than 900 °C. Effect of microstructure on corrosion characteristics of The variation of microstructure and corrosion characteristics with the applied annealing conditions of a HANA-4 (Zr1.5Nb0.4Sn0.2Fe0.1Cr) alloy were studied by utilizing transmission

Effect of tempering time on microstructure, mechanical

Nov 13, 2019 · The quenchedpartitionedtempered (QPT) steel is one of the novel steel in thirdgeneration advanced high strength steels. Herein, an attempt has been made to investigate the microstructure, mechanical, and electrochemical properties of QPT steel as a function of tempering time. Experimental researches on the corrosion behavior and After corrosion test, samples were prepared for optical microstructural analyzing and mechanical tested. We observed that the best corrosion behavior has the sample aged at 180oC /12 hours, when coalescence occurs and the weakest corrosion behavior has the sample aged at 180oC /1 hour (better behavior in comparison with the sample aged at 210oC).

Fatigue and Microstructural Properties of Quenched Ti-6Al

The mechanical properties and microstructures of Ti-6Al-4V were determined for specimens heat treated at temperatures from 84 C to 1065 C for 10 minutes and water quenched; these properties were compared with those of alpha'-Beta annealed specimens. Specimens heat treated at 900 C and water quenched had higher fatigue lives by a factor of four to ten relative to the other treatments, in High temperature deformation behaviour of an te the desired microstructural changes for obtaining the ade-quate properties and for avoiding the formation of secondary phases and intermetallic compounds with negative effects on corrosion resistance and mechanical characteristics. Therefore, studying microstructural and mechanical properties evolution

Materials - MDPI - Publisher of Open Access Journals

In this study, two commercial Zr alloys (Zr702 and Zr2.5Nb) were subjected to the same -quenching treatment (water cooling after annealing at 1000 °C for 10 min). Their microstructural characteristics and hardness before and after the heat treatment were well characterized and compared by electron channel contrast (ECC) imaging, electron backscatter diffraction (EBSD) techniques, and Microstructural Characteristics, Mechanical Properties Feb 28, 2019 · Hypereutectic Al13.5Si alloy containing 1.47% of copper and 1.30% of magnesium was designed as a potential material for internal combustion engine pistons. The optical microscopy and scanning electron microscopy (SEM) revealed the fine dendrites of -Al phase and significantly dispersed eutectics in as-cast specimens. Several intermetallic phases were observed indicating different

Microstructural Characteristics, Mechanical Properties

Feb 28, 2019 · Hypereutectic Al13.5Si alloy containing 1.47% of copper and 1.30% of magnesium was designed as a potential material for internal combustion engine pistons. The optical microscopy and scanning electron microscopy (SEM) revealed the fine dendrites of -Al phase and significantly dispersed eutectics in as-cast specimens. Several intermetallic phases were observed indicating different Microstructural Characterization and Corrosion - MDPIMicrostructural Characterization and Corrosion-Resistance Behavior of Dual-Phase Steels Compared to Conventional Rebar Hany S. Abdo 1,2, Asiful H. Seikh 1,* , Biplab Baran Mandal 3, Jabair A. Mohammed 1, Sameh A. Ragab 1 and Mohamed S. Abdo 4 1 Centre of Excellence for Research in Engineering Materials, King Saud University, Riyadh 11421,

Microstructural and corrosion - ResearchGate

Request PDF On Jan 20, 2020, Sooraj Kumar A O Nair and others published Microstructural and corrosion characteristics of Quenched and Self-Tempered (QST) steel Microstructural and corrosion - ScienceDirectMicrostructural and corrosion characteristics of Quenched and Self-Tempered (QST) steel reinforcing bars. Quenched and Self-Tempered (QST) steel reinforcing bar (rebar, herein) is widely used in the reinforced concrete (RC) systems across the world. A typical QST steel rebar cross-section consists of a ductile ferrite-pearlite (FP

Microstructural and corrosion studies of Ti alloy (IMI 834

The electrochemical polarization behaviour of a titanium alloy (IMI 834) was studied in different concentrations of aqueous and ethylene glycolic solutions of hydrochloric and phosphoric acid at 30 °C. The influence of furnace cooled (FC), air cooled (AC) and water quenched (WQ) heat treatments and microstructure on polarization behaviour was also studied. Microstructural characterization, mechanical property and Dec 15, 2020 · The corrosion characteristics from these results are listed in Table 4. Table 4 . Corrosion characteristics of 304 stainless steel substrate and four high entropy alloy coatings tested in 0.5 M H 2 SO 4 solution.

Microstructural evolution and corrosion behaviors of

Dec 01, 2019 · Whether the different microstructural characteristics produced by various heat treatments will trigger a distinction of corrosion resistance remains unclear for the SLMed Inconel 718 alloy. Also, the corrosion mechanisms of SLMed Inconel 718 alloy following various heat treatments are seldom revealed. Microstructural evolution and corrosion behaviors of Dec 01, 2019 · Whether the different microstructural characteristics produced by various heat treatments will trigger a distinction of corrosion resistance remains unclear for the SLMed Inconel 718 alloy. Also, the corrosion mechanisms of SLMed Inconel 718 alloy following various heat treatments are seldom revealed.

Microstructural features and corrosion analysis of A517

Jun 27, 2018 · The corrosion behavior in 3.5 wt% NaCl solution revealed negatively shift of corrosion potential with increasing of traverse speed. However, the effect of welding parameters on cathodic behavior was more predominant than that on anodic behavior; associated with the microstructural Microstructural, mechanical and corrosion characteristics Hardness, compression and tensile tests were conducted, while the in vitro corrosion characteristics of the prepared samples were determined using potentiodynamic polarization (PDP) and immersion tests. It was found that increasing the age hardening duration up to 2-5h increased the heat-treated Mg-1.2Zn-0.5Ca alloy's mechanical properties.

Microstructural, mechanical and intergranular corrosion

Feb 01, 2019 · In the present investigation, microstructural, mechanical and electrochemical properties of cold rolled Cr-Mn austenitic stainless steel were studied. Heat treatment (800 °C, 900 °C, 950 °C and 1000 °C) and thermal ageing (one, two and three hours) of surface were investigated using an optical microscope, scanning electron microscope. The Effect of Heat-Treatment on Mechanical The quenched ingots were age hardened in an oil bath at 200 °C for 2 h. Pure Mg, as-cast and heat-treated Mg-1.6Zn-0.5Ca alloy ingots were cut into coupons to characterize their mechanical and corrosion properties. In vitro corrosion tests were conducted in modified simulated body fluid (m-SBF) at pH 7.4 and 37 °C.

The effect of quench rate on the microstructure

The effect of cooling rate on the microstructure, mechanical behavior, corrosion resistance, and subsequent age hardenability of U-6 wt pct Nb is described and discussed. Cooling rates in excess of 20 Ks-1 cause the parent -phase to transform martensitically to a niobium supersaturated variant of the -phase. This martensitic phase exhibits low hardness and strength, high ductility, good The microstructural characterization of the development The stress-corrosion cracking (SCC) behavior of U--6 wt percent Nb in three different heat-treated conditions was investigated. The three heat treatments were:(a) solution quenched (the nonaged condition); (b) solution quenched and aged 6 hours at 250/sup 0/C (the underaged condition); and (c) solution quenched and aged 80 minutes at 600/sup 0/C (the overaged condition).

Microstructural and corrosion - ScienceDirect

Jan 20, 2020 · Microstructural and corrosion characteristics of Quenched and Self-Tempered (QST) steel reinforcing bars. S.A.O. Nair, R.G. Pillai, R. GettuCorrosion characteristics of Quenched & Self-Tempered steel reinforcement bars. Proceedings of the International RILEM conference on Materials, Systems and Structures in Civil Engineering 2016, Aug 21

Post your comment