Small Punch Creep Test: An Overview

Arunkumar, S.

doi:10.1007/s12540-020-00783-w

Cited by 14 publications

(5 citation statements)

References 74 publications

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“…The typical test configuration for SPCT has been given in Figure 2a, which is comprised of an upper and lower die to fix the thin disc-shaped specimen with thickness of t. A centrally loaded punch with a spherical head subjected to a constant load is held firmly along its axis of symmetry between the dies. As the rigid spherical head connected to the load cell moves downward and deforms the specimen, the corresponding deflection response can be recorded in the terms of load-displacement or load-time (Arunkumar, 2021). The testing setup located in a furnace is accommodated to a load frame, which is able to control the punch displacement and measure the load via a load cell.…”

Section: Small Punch Creep Test Technique At High Temperaturementioning

confidence: 99%

“…In the second scope (Abendroth and Kuna, 2003, 2004; Campitelli et al ., 2004; Hyde et al ., 2013b; Sastry, 2005), efforts have been paid to produce innovative geometry and experimental configuration that have no special equivalent, such as small punch creep test (SPCT) (Blagoeva et al ., 2011; Zhong et al ., 2019; Arroyo et al ., 2019), impression creep test (ICT) (Sastry, 2005; Hyde et al ., 1996), small ring creep test (SRCT) (Hyde et al ., 2013b; Yu et al ., 2021) and small tensile two bar creep test (STBCT), as illustrated in Figure 1. Among these miniaturized techniques, SPCT has been widely utilized as one of useful methods in industrial and academic research (Arunkumar, 2021; Rouse et al ., 2013), which can be further distinguished into (1) shear punch test (Esfandyarpour et al ., 2019) and (2) ball indentation test (Haggag et al ., 1990). In addition to the above reasons, more necessities for developing these miniaturized techniques can be summarized as follows: (1) assessing the material performance required by the industrial and academic, (2) rapid measurement of mechanical properties to assist new material design and development (Dorner et al ., 2003; Sundar et al ., 2000), (3) assessment of material heterogeneities/anisotropic, and conduct localized characterization where conventional standard testing technique is not applicable, for example, the microstructure heterogeneities in welding induced heat-affected zone (HAZ) (Blagoeva et al ., 2011; Bai et al ., 2013; Li et al ., 2016, 2018; Xu et al ., 2020) or anisotropic behavior in addictive manufacturing (AM) material (Wan et al ., 2019a; Neikter et al ., 2019; Wang et al ., 2020), and (4) monitoring the remaining service life of operating components.…”

Section: Introductionmentioning

confidence: 99%

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Analytical and inverse method for determining high temperature properties of materials using small punch creep: a review

Liu

et al. 2023

MMMS

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PurposeThis paper presents a review concerning the analytical and inverse methods of small punch creep test (SPCT) in order to evaluate the mechanical property of component material at elevated temperature.Design/methodology/approachIn this work, the effects of temperature, specimen size and shape on material properties are mainly discussed using the finite element (FE) method. The analytical approaches including membrane stretching, empirical or semi-empirical solutions that are currently used for data interpretation have been presented.FindingsThe state-of-the-art research progress on the inverse method, such as non-linear optimization program and neutral network, is critically reviewed. The capabilities of the inverse technique, the uniqueness of the solution and future development are discussed.Originality/valueThe state-of-the-art research progress on the inverse method such as non-linear optimization program and neutral network is critically reviewed. The capabilities of the inverse technique, the uniqueness of the solution and future development are discussed.

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Section: Small Punch Creep Test Technique At High Temperaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analytical and inverse method for determining high temperature properties of materials using small punch creep: a review

Liu

et al. 2023

MMMS

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“…Certainly, research efforts are needed to expand the testing methods for miniaturized specimens, in which a good example is the small punch creep test. [ 143 ] Third, real‐world performance evaluation of SX grown by AM remains uncharted to our best knowledge. Once crack‐free sizeable SX materials become achievable using AM technology, it is important to compare AM produced SX structures with the SX from conventional manufacturing processes in terms of performance such as creep and fatigue.…”

Section: Challenges and Research Opportunitiesmentioning

confidence: 99%

Epitaxial Growth and Stray Grain Control toward Single‐Crystal Metallic Materials by Additive Manufacturing: A Review

Liu

Shi

2023

Adv Eng Mater

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Additive manufacturing (AM) possesses tremendous potential in controlling epitaxial growth of deposited materials, and thus attempts have been made to employ AM technology to fabricate or repair single‐crystal (SX) metal parts in recent years. One of the key issues in producing SX structures is the elimination of stray grain (SG) formation, but the layer‐wise fabrication nature of AM processes makes SGs difficult to avoid. Herein, the state‐of‐the‐art developments in this emerging research area are surveyed. It introduces the fundamental mechanisms of epitaxial growth in AM, summarizes the recent innovations and findings on using AM techniques to assist epitaxial growth and avoid SGs for SX metallic materials, discusses the relation of stray‐grain avoidance and crack‐free microstructure, and reviews the analytical and numerical modeling efforts for epitaxial growth and texture control. In addition, the challenges in achieving defect‐free SX microstructure are discussed, such that future research directions are pointed out. It is believed that this critical review provides insights on microstructure control for AM‐produced metallic materials and lays a solid foundation to stimulate more rigorous research.

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“…Small Punch Test (SPT) is a collection of ground-breaking techniques for evaluating the health of materials that are currently being researched and validated to support traditional techniques for estimating mechanical properties. Key mechanical characteristics of steel materials, including yield stress, tensile strength, creep properties [1], [2], and ductile to brittle transition temperatures [3], [4], are estimated using SPT [5], [6]. SPT methods have been used for more than 30 years [7], yet they are continually being improved upon to increase their usefulness.…”

Section: Introductionmentioning

confidence: 99%

Statistical analysis and correlation of small punch test

Kaliciak

Uhl

Nowak³

2023

Health Monitoring of Structural and Biological Systems XVII

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Structural Health Monitoring methods are in general based on material testing during operation of structures under monitoring. Small Punch Test method is a new approach that allows for material sampling on metal structures without the need to repair the damage due to the size and shape of material volume taken from the structure. The way of material sampling for SPT makes it a non-destructive testing method thus allowing material condition assessment at any stage of machine life without the need to exclude it from usage and cause production downtime. Small Punch Test results provide Yield Stress and Ultimate Strength. In this work we investigate the accuracy of the SPT method in comparison with standard, widely used in industry Uniaxial Tensile Test that is destructive but regarded as a default source of precise mechanical properties data. Materials used for this research are boiler steels in various conditions starting at unused materials and ending on heavily fatigued samples from retired pressure tanks. The goal of this study is to establish a direct correlation between SPT and UTT for investigated materials by the means of statistical analysis of the results. Cluster analysis has been used to investigate the influence of small thickness differences between samples on final results in comparison to the data obtained from standard material testing methods by mixing the data together.

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Small Punch Creep Test: An Overview

Cited by 14 publications

References 74 publications

Analytical and inverse method for determining high temperature properties of materials using small punch creep: a review

Analytical and inverse method for determining high temperature properties of materials using small punch creep: a review

Epitaxial Growth and Stray Grain Control toward Single‐Crystal Metallic Materials by Additive Manufacturing: A Review

Statistical analysis and correlation of small punch test

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