Constitutive analysis to predict high-temperature flow behavior of BFe10-1-2 cupronickel alloy in consideration of strain

Cai, Jun; Wang, Kuaishe; Miao, Changwen; Wen-bing, LI; Wen, Wang; Yang, Jie

doi:10.1016/j.matdes.2014.09.028

Cited by 18 publications

(11 citation statements)

References 26 publications

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“…In the case of the sample in the simulated seawater without SRB, E OCP gradually decreases. In the case of the sample in the simulated seawater with SRB, E OCP decreases markedly during the first 2 days, which may be a result of the increase of conductivity due to the sulfides [13]. Then, E OCP shows an increase of 60 mV from 7 to 15 days of immersion, which may be ascribed to the gradual increase of the thickness and compactness of the corrosion products.…”

Section: Confocal Laser Scanning Microscopy (Clsm) Analysismentioning

confidence: 91%

Corrosion Behavior of Cupronickel Alloy in Simulated Seawater in the Presence of Sulfate-Reducing Bacteria

Song

Shi

Wang

et al. 2017

Acta Metall. Sin. (Engl. Lett.)

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The corrosion behavior of cupronickel alloy immersed in the simulated seawater in or without the presence of sulfate-reducing bacteria (SRB) was studied. The results of scanning electronic microscopy and electrochemical impedance spectra reveal that corrosion of the sample immersed in the simulated seawater with SRB was more serious than that immersed in the simulated seawater without SRB. The atomic force microscopy images show that after immersion for 15 days, the surface roughness of the sample in the simulated seawater with SRB was higher than that of the sample in the simulated seawater without SRB. The analysis of confocal laser scanning microscopy indicates that the average depth of the pits on the surface of the sample in the simulated seawater with SRB was almost twice deeper than that of the sample in the simulated seawater without SRB.

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Section: Confocal Laser Scanning Microscopy (Clsm) Analysismentioning

confidence: 91%

Corrosion Behavior of Cupronickel Alloy in Simulated Seawater in the Presence of Sulfate-Reducing Bacteria

Song

Shi

Wang

et al. 2017

Acta Metall. Sin. (Engl. Lett.)

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“…Hotcompression deformation testing is useful for investigating the hot-deformation behaviour during hot-working conditions. Bobbili et al 4 and Cai et al 5 found that during thermal processing, the temperature, strain, and strain rate significantly affect the flow stress of titanium alloys. A comprehensive understanding of the material flow behaviour is very important for designing hot-working processes.…”

Section: Introductionmentioning

confidence: 99%

Hot-deformation behaviour and flow-stress prediction of the TC4 alloy considering strain

Fu¹,

Wang²,

Chen³

et al. 2019

Mater. Tehnol.

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To study the hot-compressive deformation behaviour of the TC4 alloy, isothermal compression tests were conducted at temperatures ranging from 700°C to 900°C, at 100°C intervals, and at strain rates ranging from 0.1 s -1 to 10.0 s -1 . The experimental results showed that the flow stress of the TC4 alloy increases quickly with an increase in the strain, reaches a peak value, and then decreases to a steady value. The results clearly indicated that dynamic recovery and recrystallization occur during the hot-compression tests. The flow stress of the TC4 alloy increases with a decrease in the deformation temperature and an increase in the strain rate. On the basis of the experimental results, a revised constitutive model describing the relationship among the flow stress, strain rate, and forming temperature of the TC4 alloy at elevated temperature was established. The flow-stress values predicted by the constitutive model agreed well with the experimental results.Avtorji so izvajali preizkuse vro~e izotermalne deformacije pod tlakom na zlitini TC4 v temperaturnem obmo~ju med 700°C in 900°C, v intervalih po 100°C in hitrostih deformacije od 0,1 s -1 do 10,0 s -1 . Rezultati eksperimentov so pokazali, da z nara{~ajo~o stopnjo deformacije hitro nara{~a napetost te~enja zlitine TC4. Ko dose`e vrh, za~ne padati in se ustali pri neki konstantni vrednosti. Rezultati so jasno pokazali, da med preizkusi vro~e deformacije pod tlakom pride do dinami~ne poprave in rekristalizacije. Napetost te~enja zlitine TC4 nara{~a z zni`evanjem temperature deformacije in nara{~a s hitrostjo deformacije. Na osnovi rezultatov so avtorji revidirali in potrdili konstitutivni model, ki opisuje zvezo med napetostjo te~enja, hitrostjo in temperaturo deformacije zlitine TC4. Numeri~no napovedana napetost te~enja zlitine se dobro ujema z rezultati eksperimentov.

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“…Mandal [ 13 ] incorporated both the strain and strain rate compensation into the hyperbolic-sine equation to establish constitutive equation in a Ti-austenitic stainless steel at temperatures of 1123–1523 K and strain rates of 10 −3 –10 2 s –1 ; Cai et al [ 14 ] performed the constitutive analysis of Ti–6Al–4V alloy in a wide range of temperatures (1073–1323 K) and strain rates (0.0005–1 s −1 ) by using the modified hyperbolic-sine equation. Lin et al [ 15 ] employed the strain-compensated equation to investigate the flow behaviors of hot deformation in 2124–T851 aluminum alloy over a wide range of temperatures (653–743 K) and strain rates (0.01–10 s –1 ); Li et al [ 16 ] developed the strain-compensated equation to describe the hot deformation behaviors of 7050 aluminum alloy accurately in the temperature range of 573–723 K and strain rates of 0.001–1 s −1 ; Cai et al [ 17 ] proposed the strain-dependent equation of BFe10-1-2 cupronickel alloy in a wide range of temperatures (1023–1273 K) and strain rates (0.001–10 s −1 ). In addition, the Backofen equation [ 18 ] was developed to depict the superplastic phenomenon.…”

Section: Introductionmentioning

confidence: 99%

Investigation of a Coupled Arrhenius-Type/Rossard Equation of AH36 Material

Qin

Tian

Zhang³

2017

Materials

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High-temperature tensile testing of AH36 material in a wide range of temperatures (1173–1573 K) and strain rates (10−4–10−2 s−1) has been obtained by using a Gleeble system. These experimental stress-strain data have been adopted to develop the constitutive equation. The constitutive equation of AH36 material was suggested based on the modified Arrhenius-type equation and the modified Rossard equation respectively. The results indicate that the constitutive equation is strongly influenced by temperature and strain, especially strain. Moreover, there is a good agreement between the predicted data of the modified Arrhenius-type equation and the experimental results when the strain is greater than 0.02. There is also good agreement between the predicted data of the Rossard equation and the experimental results when the strain is less than 0.02. Therefore, a coupled equation where the modified Arrhenius-type equation and Rossard equation are combined has been proposed to describe the constitutive equation of AH36 material according to the different strain values in order to improve the accuracy. The correlation coefficient between the computed and experimental flow stress data was 0.998. The minimum value of the average absolute relative error shows the high accuracy of the coupled equation compared with the two modified equations.

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Constitutive analysis to predict high-temperature flow behavior of BFe10-1-2 cupronickel alloy in consideration of strain

Cited by 18 publications

References 26 publications

Corrosion Behavior of Cupronickel Alloy in Simulated Seawater in the Presence of Sulfate-Reducing Bacteria

Corrosion Behavior of Cupronickel Alloy in Simulated Seawater in the Presence of Sulfate-Reducing Bacteria

Hot-deformation behaviour and flow-stress prediction of the TC4 alloy considering strain

Investigation of a Coupled Arrhenius-Type/Rossard Equation of AH36 Material

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