Plastic deformation modeling of AL-6XN stainless steel at low and high strain rates and temperatures using a combination of bcc and fcc mechanisms of metals

Abed, Farid; Voyiadjis, George Z.

doi:10.1016/j.ijplas.2004.11.003

Cited by 91 publications

(48 citation statements)

References 19 publications

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“…Other work on the properties of the stainless steel has been done primarily in the microstructural features [29,33] and [34] and crack propagation in the welds [35,36]. Modeling of the plastic behavior was conducted based in particular on crystal plasticity theories [37][38][39].…”

Section: High-low Sequence Loadingmentioning

confidence: 99%

“…A plasticity theory developed by Voyiadjis and Abed [39] was applied to AL6-XN and the predicted results were compared with the experimental data obtained by Nemat-Nasser et al [29] for the monotonic compression experiments over a wide range of strain rates and temperatures. The plasticity model is based on the dislocation interaction mechanisms.…”

Section: High-low Sequence Loadingmentioning

confidence: 99%

“…Similar to Eq. (37), the delay retardation zone is determined by, /)/ = X r f K.^ \ a yj (39) and the constant X D is found from the relation similar to Eq. (38) where a Df is the final crack length at the end of delay retardation zone and K Df is the stress intensity factor corresponding to a D ,.…”

Section: -mentioning

confidence: 99%

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Development of a Novel Approach for Fatigue Life Prediction of Structural Materials

Jiang¹

2008

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Section: High-low Sequence Loadingmentioning

confidence: 99%

Section: High-low Sequence Loadingmentioning

confidence: 99%

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Development of a Novel Approach for Fatigue Life Prediction of Structural Materials

Jiang¹

2008

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“…To describe the response of the material over a wide range of temperatures (T 0 = 77-600) and strain rates (ε = 0.1-8000 sec −1 ), we use the assumption of a dislocation nature of the plastic flow. The kinetic relations based on dislocation motion are widely used to describe the plastic strain rate [4][5][6][7][8][9][10]. Some theoretical assumptions on the examined problem are given in [7].…”

Section: Relaxation Constitutive Equationmentioning

confidence: 99%

Numerical modeling of the thermomechanical behavior of steels with allowance for the propagation of Luders bands

Балохонов

Романова

2007

J Appl Mech Tech Phys

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A thermomechanical model based on physical representations of the motion of dislocation continuum and a model for the initiation and propagation of plastic shear are proposed to describe slow flows of the type of Luders bands. Two-dimensional calculations of Luders band propagation are performed for HSLA-65 steel samples under compression at various strain rates and temperatures. The calculation results are in good agreement with experimental data.Introduction. Constructing physicomechanical models of homogeneous deformation that describe the mechanical behavior of metals and alloys at various rates and temperatures is an important problem of modern mechanics. From a physical point of view, it is also necessary to develop approaches to modeling inhomogeneous flows. Substantially inhomogeneous deformation is exemplified by the propagation of Chernov-Luders localized plastic deformation bands. In experiments, a Luders band is usually observed as a macroscopic zone of localized plastic deformation, which forms near the base macroscopic stress concentrator (as a rule, near the tensile grip) and propagates throughout the sample at a rate characteristic of the particular grade of steel.The goal of the work is to construct a combined model for the mechanical behavior of metals that includes a relaxation equation taking into account the rate and temperature sensitivity and describes the initiation and propagation of localized plastic deformation bands.General System of Equations and Initial and Boundary Conditions. To describe material deformation, we use the system of equations including the laws of conservation of mass and momentum, strain relations, and the constitutive equations describing the material. The mechanical behavior of the examined steel grade is modeled for a plane strain state. A numerical solution is constructed in Lagrangian variables using a finite difference method [1,2].In the case of plane strain, the following strain rate tensor components are nonzero:

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“…The presence of alloying elements such as chromium, nickel, molybdenum and nitrogen enhance the resistance of the alloy to the stress corrosion cracking (SCC), crevice and pitting corrosion. AL6XN alloy is applied in various engineering applications such as in offshore structures, chemical waste processing, food containers, transformer cases and pump parts [1]- [3].…”

Section: Introductionmentioning

confidence: 99%

Tool Wear Analysis due to Machining In Super Austenitic Stainless Steel

2017

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Abstract. This paper presents tool wear study when a machinability test was applied using milling on Super Austenitic Stainless Steel AL6XN alloy. Eight milling trials were performed under two cutting speeds, 100 m/min and 150 m/min, combined with two feed rates at 0.1mm/tooth and 0.15 mm/tooth and two depth of cuts at 2 mm and 3 mm. An Alicona 3D optical surface profilometer was used to scan cutting inserts flank and rake face areas for wear. Readings such as maximum and minimum deviations were extracted and used to analyse the outcomes. Results showed various types of wear were generated on the tool rake and flank faces. The common formed wear was the crater wear. The formation of the build-up edge was observed on the rake face of the cutting tool.

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Plastic deformation modeling of AL-6XN stainless steel at low and high strain rates and temperatures using a combination of bcc and fcc mechanisms of metals

Cited by 91 publications

References 19 publications

Development of a Novel Approach for Fatigue Life Prediction of Structural Materials

Development of a Novel Approach for Fatigue Life Prediction of Structural Materials

Numerical modeling of the thermomechanical behavior of steels with allowance for the propagation of Luders bands

Tool Wear Analysis due to Machining In Super Austenitic Stainless Steel

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