An In-Situ Electrochemical Nanoindentation (ECNI) Study on the Effect of Hydrogen on the Mechanical Properties of 316L Austenitic Stainless Steel

Basa, Adina; Wang, Dong; Espallargаs, N.; Wan, Di

doi:10.3390/ma14216426

Cited by 3 publications

(1 citation statement)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the pure elasticity of the indentation segment, the driving force that nucleates a dislocation can be assumed to be the maximum shear stress τ max . According to Hertzian elasticity theory, τ max can be expressed as [57,63]:…”

Section: Hydrogen-induced Micro Property Evaluation Based On Nanoinde...mentioning

confidence: 99%

Review of Characterization on Hydrogen Embrittlement by Micro-Sample Testing Methods

Tao,

Zhou,

Miao

et al. 2023

Metals

View full text Add to dashboard Cite

Conventional-sized specimens have been well and widely applied in research on hydrogen embrittlement. However, when the limited-size core components (nozzles and valves, etc.) of hydrogen energy equipment are evaluated for service damage, traditional testing with conventional-sized samples is no longer applicable and micro-sample testing methods are required. In this paper, recent progress in the characterization of hydrogen embrittlement achieved via a small-sized sample tensile test, small punch test and nanoindentation test is reviewed. The commonly used geometries and dimensions of various small-sized specimens are first described and the in situ hydrogen-containing environment testing cases equipped with small-sized specimens are presented, proving the advantages of direct observations of hydrogen influences on the mechanical property and microstructure evolution. Then, the quantitative analysis of hydrogen embrittlement sensitivity involving a small punch test is discussed, with a focus on the comparisons of the hydrogen embrittlement index calculated using different definition methods. Finally, the nanoindentation test of investigation on the interaction between hydrogen and dislocation in metals and the effect of indentation strain rate are summarized. Furthermore, the specific research directions and applications of micro-size specimens for further investigation on hydrogen embrittlement are identified.

show abstract

Section: Hydrogen-induced Micro Property Evaluation Based On Nanoinde...mentioning

confidence: 99%

Review of Characterization on Hydrogen Embrittlement by Micro-Sample Testing Methods

Tao,

Zhou,

Miao

et al. 2023

Metals

View full text Add to dashboard Cite

show abstract

A novel method of fabricating designable polylactic acid (PLA)/thermoplastic polyurethane (TPU) composite filaments and structures by material extrusion additive manufacturing

Cao,

Wan,

Gao

et al. 2024

Journal of Manufacturing Processes

View full text Add to dashboard Cite

A Numerical Analysis of Ductile Deformation during Nanocutting of Silicon Carbide via Molecular Dynamics Simulation

Liu

Kong

et al. 2022

Materials

View full text Add to dashboard Cite

As a typical third-generation semiconductor material, silicon carbide (SiC) has been increasingly used in recent years. However, the outstanding performance of SiC component can only be obtained when it has a high-quality surface and low-damage subsurface. Due to the hard–brittle property of SiC, it remains a challenge to investigate the ductile machining mechanism, especially at the nano scale. In this study, a three-dimensional molecular dynamics (MD) simulation model of nanometric cutting on monocrystalline 3C-SiC was established based on the ABOP Tersoff potential. Multi-group MD simulations were performed to study the removal mechanism of SiC at the nano scale. The effects of both cutting speed and undeformed cutting thickness on the material removal mechanism were considered. The ductile machining mechanism, cutting force, hydrostatic pressure, and tool wear was analyzed in depth. It was determined that the chip formation was dominated by the extrusion action rather than the shear theory during the nanocutting process. The performance and service life of the diamond tool can be effectively improved by properly increasing the cutting speed and reducing the undeformed cutting thickness. Additionally, the nanometric cutting at a higher cutting speed was able to improve the material removal rate but reduced the quality of machined surface and enlarged the subsurface damage of SiC. It is believed that the results can promote the level of ultraprecision machining technology.

show abstract

An In-Situ Electrochemical Nanoindentation (ECNI) Study on the Effect of Hydrogen on the Mechanical Properties of 316L Austenitic Stainless Steel

Cited by 3 publications

References 70 publications

Review of Characterization on Hydrogen Embrittlement by Micro-Sample Testing Methods

Review of Characterization on Hydrogen Embrittlement by Micro-Sample Testing Methods

A novel method of fabricating designable polylactic acid (PLA)/thermoplastic polyurethane (TPU) composite filaments and structures by material extrusion additive manufacturing

A Numerical Analysis of Ductile Deformation during Nanocutting of Silicon Carbide via Molecular Dynamics Simulation

Contact Info

Product

Resources

About