Low strain rate testing of tensile properties of steel

Baciu, Florin; Rusu-Casandra, Aurelia; Pastramă, Ştefan-Dan

doi:10.1016/j.matpr.2020.03.469

Cited by 12 publications

(7 citation statements)

References 1 publication

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“…All experimental data stated in Figure 16 are taken from the vertical samples (the long axis of the sample is parallel with the building direction) and the results show that the creep resistance of the 3D-printed material is not negatively influenced by the size of the printed block. Figure 15 compares our results with literature values from [14,[30][31][32][33][34].…”

Section: Discussionmentioning

confidence: 71%

Study of Material Properties and Creep Behavior of a Large Block of AISI 316L Steel Produced by SLM Technology

Hermanová

Kuboň

Čížek

et al. 2022

Metals

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The additive manufacturing (3D printing) of metallic materials is a relatively new technology and its use is quickly increasing. Although it is of interest to many researchers, there are still areas which are not fully explored. One of those areas is the behavior of large components and/or semi-products processed by 3D printing. This work is focused on the study of material properties of additive manufactured large block made of AISI 316L steel in two heat treatment conditions (as-printed and solution annealed) and their comparison with the properties of hot-rolled plate performed by tensile tests, Charpy V-notch tests, small punch tests and stress rupture tests. Mechanical tests were complemented by microstructural investigation and the fractographic analysis of fracture surfaces. We found out that mechanical and long-term properties of large 3D printed blocks of this steel are excellent and comparable with other published results obtained on small-sized and intentionally produced test pieces. The observed lower ductility is the result of printing imperfections in microstructure. The results of small punch tests confirmed the possibility of exploiting the existing database and using the correlation between small punch tests and tensile tests results even for 3D-printed AISI 316L steel.

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Section: Discussionmentioning

confidence: 71%

Study of Material Properties and Creep Behavior of a Large Block of AISI 316L Steel Produced by SLM Technology

Hermanová

Kuboň

Čížek

et al. 2022

Metals

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“…The tensile properties were tested on an Instron8501 universal testing machine. The samples were tested at room temperature according to the ASTM E8 standard [35], and the tensile rate was 0.5 mm/min.…”

Section: Methodsmentioning

confidence: 99%

Microstructure and Anisotropy of the Mechanical Properties of 316L Stainless Steel Fabricated by Selective Laser Melting

Zhou

et al. 2021

Metals

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Significant anisotropy in mechanical properties was observed in 316L stainless steel (SS) that was subjected to selective laser melting (SLM) to produce a hierarchical structure, composed of molten pool, columnar grains, and a cellular substructure. Such anisotropy was induced by the geometric relationship between the boundary of the molten pool and the tensile force. The in situ tensile test showed initial deformation rapidly occurred at the boundary of the molten pool, followed by strain localization, and a lower ductility was obtained when loaded in the longitudinal direction (perpendicular to the molten pool). By contrast, the deformation was significantly constrained because of the geometry of the boundary of the molten pool, and substantial deformation occurred in the cellular substructure during loading in transverse direction (parallel to the molten pool). Finally, the quantitative analysis revealed that the high-level strength was attributed to the high-density dislocations and the fine cellular substructure.

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“…The tensile test, which involves applying a controlled tension to a specimen until failure, is a crucial and common engineering test used for all metallic materials. It provides information about the material's yield strength, elongation at break, ultimate tensile strength, Young's modulus, and other properties [16]. Strain rate, or the rate at which the specimen under test deforms, is a critical tensile test variable that is controlled within specified limits based on the type of test being done.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Cobalt Alloy Nanocrystalline Coating on Tensile Properties and Surface Performance of Mild Steel

Zabri,

Nik Masdek,

Hyie

2023

JMechE

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Coatings are frequently used to enhance the mechanical and physical characteristics of mild steel by protecting mild steel surfaces against corrosion. Corrosion might attack surface without proper coating method which may lead to structural failures and increase maintenance cost. The main objective of this study is to investigate the effect of CoNiFe nanocrystalline coating on surface roughness, hardness, and tensile performance of mild steel substrate. Different parameters were introduced, such as current, pH, deposition times and heat treatment to analyse surface roughness, hardness, and tensile strength of CoNiFe nanocrystalline coating. The lowest surface roughness of 2.14 µm was recorded by CoNiFe nanocrystalline coating with 30 minutes deposition time at pH 3, I: 3 A and heat treated, while the highest recorded surface roughness of 4.233 µm was detected on uncoated mild steel. The highest improvement of microhardness was observed on CoNiFe nanocrystalline coating with 45 minutes deposition time at pH 3, I: 1.5 A and heat treated (393.6 Hv) as compared to the uncoated mild steel (171.44 Hv). Tensile performance of CoNiFe nanocrystalline coating with 45 minutes deposition time at pH 3, I: 1.5 A and heat treated was the highest with yield stress and ultimate tensile stress of 472.35 MPa and 559.11 MPa, respectively. The lowest tensile performance was recorded by uncoated mild steel with yield stress and ultimate tensile stress of 149.40 MPa and 186.78 MPa, respectively.CoNiFe nanocrystalline coating has considerably improved the mild steel surface roughness, hardness and tensile strength which indicate superior mechanical properties for future engineering application.

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Low strain rate testing of tensile properties of steel

Cited by 12 publications

References 1 publication

Study of Material Properties and Creep Behavior of a Large Block of AISI 316L Steel Produced by SLM Technology

Study of Material Properties and Creep Behavior of a Large Block of AISI 316L Steel Produced by SLM Technology

Microstructure and Anisotropy of the Mechanical Properties of 316L Stainless Steel Fabricated by Selective Laser Melting

The Effect of Cobalt Alloy Nanocrystalline Coating on Tensile Properties and Surface Performance of Mild Steel

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