Small Punch test for weld heat affected zones

Šturm, Roman

doi:10.3184/096034006782739349

Cited by 10 publications

(10 citation statements)

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“…The central deflection was geometrically related to the central strain [13,30] and such a relationship was reported as approximately independent of load, temperature and creep behavior [29]. The membrane stretch model assumes that material is rigid plastic and neglects effect of friction between indenter and specimen.…”

Section: Relationship Between Deflection and Strainmentioning

confidence: 99%

“…Local creep properties of weld joint comprising distinct and heterogeneous zones, such as base metal, weld metal, fine-grained and coarse grained parts of heat affected zone, etc., can be examined by SPC technique. SPC technique was applied to measure the creep properties across variety of weld joints made of P92 steel [9], reduced activation ferritic steel [10], Inconel 617 alloy [11], P91 steel [12,13], etc. SPC technique was used to optimize the nitrogen content in 316LN stainless steel on the basis of creep strength [14].…”

Section: Introductionmentioning

confidence: 99%

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Small Punch Creep deformation and rupture behavior of 316L(N) stainless steel

Kumar

Laha

2015

Materials Science and Engineering: A

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Section: Relationship Between Deflection and Strainmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Small Punch Creep deformation and rupture behavior of 316L(N) stainless steel

Kumar

Laha

2015

Materials Science and Engineering: A

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“…However, the quantities related to uniaxial creep experiments are stress and strain, therefore a robust analytical method to convert these parameters is highly important. 14,34 Using displacement profiles and the Chakrabarty model, estimations of the stress and strain magnitudes can be made for the disc specimen 35 (the relationship between applied load and stress is described in much detail in the CEN code of practice for small punch tests in metallic materials, and is therefore discussed later in the section on 'CEN code of practice'). Figure 3 is a schematic representation of Chakrabarty's model for membrane stretching of circular blanks over a hemispherical punch.…”

Section: Modelling Of Small Punch Creep Testingmentioning

confidence: 99%

Small punch creep testing: Review on modelling and data interpretation

Rouse

Cortellino

Sun

et al. 2013

Materials Science and Technology

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In many situations where the characterisation of the mechanical behaviour of a specific material is required, source material for manufacture of conventional test specimens may be at a premium. Examples include the validation of new alloys for use in the power industry, the description of the heat affected zone (HAZ) of weldments 1 or performing a remnant life study on an in service component (such as steam pipe work used extensively in the power generation industry). The potential for a limit in sample material has necessitated the development of small specimen designs and associated test methods, particularly for the determination of the creep behaviour of a sample material. The small punch creep test (SPCT) has the potential to characterise the full uniaxial creep curve (as the specimen is taken to fracture). It is for this reason that the small punch creep test has attracted much interest from the research community. Owing to the complex deformation mechanism interactions experienced in the small punch creep test, interpretation of the results has received attention from many authors since its application was proposed by Parker et al. in the 1990s 2 (based on small punch plasticity test by Manahan et al. in the 1980s 3 – 5 ). In this review paper, several methods for the interpretation of small punch creep test (SPCT) data are reported and compared, together with examples of their application. Considerations for finite element (FE) modelling of small punch creep tests are highlighted and critiqued. Recommendations for potential areas of future research are also presented based on the authors’ investigation into published literature and research.

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“…Due to the complex stress state of the SPCT specimen, which involves complex deformation processes [9], and its variability during testing while constant load is applied, a general expression is difficult to obtain. In recent years, a number of relationships between SPCT load P and UCT stress σ [10,11] have been developed.…”

Section: Introductionmentioning

confidence: 99%