Large strain cyclic behavior of metastable austenic stainless steel

Geijselaers, H.J.M.; Hilkhuijsen, P.; Bor, Teunis Cornelis; Boogaard, A.H. van den

doi:10.1016/j.msea.2015.02.047

Cited by 14 publications

(5 citation statements)

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“…Metal biomaterials, including cobalt-chromium alloys (CoCr), titanium (commercially pure Ti) as well as titanium alloys (e.g., Ti-6Al-4V, Ti13Nb13Zr), and stainless steels (316L), have been used for a long time. Due to their high corrosion resistance, good strength, ductility, and high hardness [ 2 ], austenitic steels are successfully used as screws, intramedullary nails, fixation elements, etc. They are characterized by a fine-grained structure and a low level of non-metallic inclusions, ensuring adequate strength and ductility of the steel, and reducing the likelihood of cracks.…”

Section: Introductionmentioning

confidence: 99%

Production and Properties of the Porous Layer Obtained by the Electrochemical Method on the Surface of Austenitic Steel

2022

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The growing demand for implants has seen increasing interest in the introduction of new technologies and surface modification methods of metal biomaterials. This research aimed to produce and characterize a porous layer grown on austenitic stainless steel 316L, obtained via the anodization process near the micro-arc oxidation, i.e., low voltage micro-arc oxidation (LVMAO). The discussed layer significantly influences the properties of metallic biomedical materials. The surface topography, layer thickness, surface roughness, pore diameter, elemental composition, crystal structure, and surface wettability were assessed for all anodized layers, together with the resultant corrosion resistance. Attention was paid to the influence of the process parameters that affect the specification of the produced layer. The obtained results showed surface development and different sized pores in the modified layers, as well as an increase in corrosion resistance in the Ringer’s solution.

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Section: Introductionmentioning

confidence: 99%

Production and Properties of the Porous Layer Obtained by the Electrochemical Method on the Surface of Austenitic Steel

2022

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“…Other than for sheet metals, pure bending devices have been developed and used for various materials, such as for composite materials by Ben Zineb et al [2], weldments by Bu & Gardner [11], flexible electronics by Hoefnagels et al [12], micro electro-mechanical systems (MEMS) by Elhebeary & Saif [13], micro thin sheet by Stölken & Evans [14] and metal tubes by Guo et al [15]. Alternative testing methods such as shear tests [16][17][18] and bulge tests [19][20][21] can also be used to obtain stress-strain data at high strains. These tests are in general complex in design.…”

Section: Introductionmentioning

confidence: 99%

A New in-Plane Bending Test to Determine Flow Curves for Materials with Low Uniform Elongation

et al. 2020

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Background Flow curves can easily be obtained by uniaxial tensile tests, but strains are then limited by diffuse necking. For many applications, the flow stress must be known above this limit. Objective The main objective of this paper is to obtain flow curves for material with low uniform elongation to relatively high strains compared to a uniaxial tensile test. Method A novel in-plane sheet bending experiment and stress evaluation procedure is presented. The developed bending device can be mounted in a tensile test machine and can produce very high bending curvatures compared to previously proposed pure bending setups. The bending angle and curvature are obtained by image processing and the bending moment is calculated directly from the force measured from the tensile test machine and the bending angle. The moment–curvature relation is used to determine the uniaxial stress–strain relation using an analytical approach, without presuming any hardening model. The bending process and the analytical procedure are validated by a numerical simulation as well as by experiments. Results The numerical validation shows good agreement between the stress–strain curve obtained from the bending process and that of the uniaxial input flow curve up to 12% strain. Experimentally the model is validated by comparing the stress–strain curve obtained from the bending test with the results directly obtained from a tensile test for mild steel. Good agreement is observed up to 12% strain. As an application example, bending tests were performed on a martensitic steel (MS) with low uniform strain (less than 3%). For this material, flow curves could be obtained up to relatively high strains (~12%), compared to a tensile test. Conclusion This bending test setup allows to study materials with low uniform elongation up to significantly higher strains than are readily obtained in a tensile test.

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“…Many previous researchers have explored transformation behavior in steel . Experimental methods of evaluating the volume fraction of martensite are highly complex, however, it does not expressly describe under higher deformation rate.…”

Section: Introductionmentioning

confidence: 99%

“…Experimental methods of evaluating the volume fraction of martensite are highly complex, however, it does not expressly describe under higher deformation rate. Methods such as X‐ray diffraction (XRD), scanning electron microscopy (SEM), or impedance and resistance measurement can be utilized to characterize the materials; volume resistivity, impedance, and magnetic induction have been measured continuously during deformation, for example. There are drawbacks to these methods, however.…”

Section: Introductionmentioning

confidence: 99%

“…They also reported that the volume fraction of martensite in the initial stage of deformation increases, with respect to strain rate. Geijselaers et al subjected Fe–12Cr–9Ni–4Mo austenitic stainless steels to cyclic shear tests and monitored SIMT in real‐time with a magnetic induction sensor. Post et al used a similar magnetic induction sensor to negate other parameters by using the sensor calibration data.…”

Section: Introductionmentioning

confidence: 99%

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An Experimental Study on Strain Rate Sensitivity of Strain‐induced Martensitic Transformation in SUS304 by Real‐time Measurement of Relative Magnetic Permeability

Cao

Iwamoto

2017

steel research int.

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With excellent mechanical properties because of strain-induced martensitic transformation (SIMT), applications of austenitic stainless steels can be extended to a further broad range of engineering fields. In order to discover applications from a clarification of their mechanical properties, especially at higher deformation rate, it is important to evaluate an amount of martensite, which can control such excellent performances of the steels during deformation. However, until now, it is quite hard to find experimental studies for the evaluation during deformation at various strain rates. In the past, volume resistivity and impedance have been measured during deformation. However, these studies have not been successful to evaluate it with a higher precision. Instead of those, it is useful to measure directly relative magnetic permeability, which has a correlation with the amount of martensite, because of focusing on a ferromagnetic characteristic of martensite. In this study, at first, SUS304, which is a kind of austenitic stainless steels, is deformed plastically under tension at various strain rates. Then, it is attempted to evaluate the amount of martensite during deformation by measuring the relative magnetic permeability expressing ferromagnetism directly. Finally, the strain and strain rate sensitivity of SIMT in the steel is discussed by obtained results.[ Ã ] T. Iwamoto

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Large strain cyclic behavior of metastable austenic stainless steel

Cited by 14 publications

References 50 publications

Production and Properties of the Porous Layer Obtained by the Electrochemical Method on the Surface of Austenitic Steel

Production and Properties of the Porous Layer Obtained by the Electrochemical Method on the Surface of Austenitic Steel

A New in-Plane Bending Test to Determine Flow Curves for Materials with Low Uniform Elongation

An Experimental Study on Strain Rate Sensitivity of Strain‐induced Martensitic Transformation in SUS304 by Real‐time Measurement of Relative Magnetic Permeability

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