Spherical indentation method for measuring local mechanical properties of welded stainless steel at high temperature

Yonezu, Akio; Akimoto, Hirotaka; Fujisawa, Shoichi; Chen, Xi

doi:10.1016/j.matdes.2013.06.015

Cited by 24 publications

(9 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For a spherical indenter, our previous study yielded the relationship between indentation depth h 2 and uniaxial strain [17]. By using this relationship, loading rate (which can be converted to strain rate) was properly set, such that indentation strain rate is about 0.01 s À 1 .…”

Section: Methodsmentioning

confidence: 99%

“…Since the spherical indenter is non-self-similar geometry, it can mimic dual/plural indentation to enable the measuring elastoplastic properties (i.e. work-hardening law with non-linear deformation behavior), and we recently proposed simple framework which can apply to the Ludwick type hardening materials [17]. The plastic constitutive equation of Ludwick law is…”

Section: α-Mg Solid Phasementioning

confidence: 99%

“…Thus, our previous method was applied to the test of α-Mg phase. The detail estimation process is found in elsewhere [17].…”

Section: α-Mg Solid Phasementioning

confidence: 99%

“…Instrumented indentation technique emerges as an attractive technique for measuring the mechanical properties of materials of small volume, and it is convenient, quick, and inherently simple without extensive effort of sample preparation in comparison with conventional tensile or compression experiments [15][16][17][18]. This study investigates the mechanical properties of microstructure of AZ91D by indentation and the properties of β-Mg 17 Al 12 and α-Mg matrix are separately evaluated.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Estimation of microstructural plastic property of die-cast Mg alloy (AZ91D) with an elevated temperature indentation

Fujisawa

Yonezu

Okamura

et al. 2014

Materials Science and Engineering: A

Self Cite

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Section: α-Mg Solid Phasementioning

confidence: 99%

“…Thus, our previous method was applied to the test of α-Mg phase. The detail estimation process is found in elsewhere [17].…”

Section: α-Mg Solid Phasementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Estimation of microstructural plastic property of die-cast Mg alloy (AZ91D) with an elevated temperature indentation

Fujisawa

Yonezu

Okamura

et al. 2014

Materials Science and Engineering: A

Self Cite

View full text Add to dashboard Cite

“…The maximum weld dimensions can be achieved by the optimum value of the pulse duration which has a bilateral effect [14]. In addition to recent activities, an indentation method had been used by Yonezu et al evaluating the local mechanical properties of welded stainless steel at a high temperature of 320°C [15].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Nd:YAG pulsed laser dissimilar welding of AISI 4340 and AISI 316L stainless steels on weld geometry and mechanical properties

Sufizadeh

Mousavi

2017

Mechanics & Industry

View full text Add to dashboard Cite

In this paper, laser welding of 316L and AISI 4340 steel is studied. Studies are focused on the effects of laser parameters on the depth and width of the welds. The results show that increasing in pulse energy and frequency will increase the weld depth and the weld width. The calculation of effective peak power density related to the welded joints results in optimum operating welding parameters with full penetration and proper dimensions and strengths. The tensile strength values of the full penetrated weldments are greater than the tensile strength values of AISI 316 base metal. The effects of laser parameters on weld grain size and HAZ size were investigated. The results show that the weld grain size and HAZ size increase with pulse energy and frequency.

show abstract

Automated identification of the coefficient of restitution via bouncing ball measurement

et al. 2020

View full text Add to dashboard Cite

Material characterization of brittle and ductile materials, by means of determining characteristic material parameters such as hardness, elastic moduli or yield strength, is of significance to the scientific community. The evaluation of indentations on micro-and macro-scale can be employed to characterize materials but is governed by highly sensitive acquisition hardware and complex analysis. Profound analytical, experimental, and numerical approaches exist to evaluate the impact of spherical indenters on a plane surface but require a deep knowledge of plasticity and computational mechanics. This work aims to provide a generalized analysis tool, which is based on fundamental Newtonian mechanics, to be applied on brittle and ductile materials of homogeneous and heterogeneous constitution. Based on bouncing ball measurements, the coefficient of restitution is evaluated to determine the homogeneity and degree of plasticity of the selected material. The measurements are supported with additional physical (e.g., electron micrographs, velocimetry) and numerical (Finite Element) investigations. It can be demonstrated that the evaluation of the bouncing trajectories provides essential information on the plasticity and topology of the selected material and leads to adequate results compared to complex experimental and numerical analysis.

show abstract

Spherical indentation method for measuring local mechanical properties of welded stainless steel at high temperature

Cited by 24 publications

References 32 publications

Estimation of microstructural plastic property of die-cast Mg alloy (AZ91D) with an elevated temperature indentation

Estimation of microstructural plastic property of die-cast Mg alloy (AZ91D) with an elevated temperature indentation

Investigation of Nd:YAG pulsed laser dissimilar welding of AISI 4340 and AISI 316L stainless steels on weld geometry and mechanical properties

Automated identification of the coefficient of restitution via bouncing ball measurement

Contact Info

Product

Resources

About