Small Punch Testing - The Transition from a Code of Practice to a European Testing Standard

Abstract:

The development and practical use of the Small Punch test technique for the evaluation of mechanical properties of metallic materials in Europe resulted in the publication of the CEN document CWA 15627 Small Punch Test Method for Metallic Materials in 2007. The evaluation of the actual mechanical properties of metallic materials from the results of such tests according to CWA 15627 were presented at the first three International conferences SSTT "Determination of Mechanical Properties by Small Punch and other Miniature Testing Techniques" held in Ostrava (2010, 2012) and Castle Seggau in Austria (2014). In the present paper the motivation and the steps taken to lead to the setting up of a working group and programme facilitating the transformation of CWA 15627 Small Punch Test Method for Metallic Materials into an EN standard are summarized along with early results of the programme.

• Periodical: Key Engineering Materials (Volume 734)
• Pages: 3-22
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.734.3
• Online since: April 2017
• Authors: Karel Matocha, Roger Hurst
• Keywords: Codes of Practice, ECISS/TC101/WG1 Working Group, Small Punch Testing, Testing Standard

References

[1] MANAHAN, M.P., ARGON, A.S., HARLING, O.K.: The Development of a Miniaturized Disc Bend Test for Determination of Post Irradiation Mechanical Properties. Journal of Nuclear Materials, 103&104, North-Holland Publishing Company, 1981, pp.1545-1550.

DOI: 10.1016/0022-3115(82)90820-0

[2] FOULDS, J.R., JEWETT, C.W., BISBEE, L.H., WHICKER, G.A. VISWANATHAN, R.: Miniature Sample Removal and Small Punch Testing for In-Service Component FATT. Proceedings of the Robert I. Jaffee memorial Symposium on Clean Materials Technology. ASM/TMS Materials Week, 2-5 November 1992, Chicago, Illinois, USA.

[3] MAO, X., TAKAHASHI, H.: Development of a Further-Miniaturized Specimen of 3 mm Diameter for TEM Disc (Ø 3 mm) Small Punch Tests. Journal of Nuclear Materials, 150, North-Holland Publishing Company, 1987, pp.42-52.

DOI: 10.1016/0022-3115(87)90092-4

[4] PARKER J. D. AND JAMES J. D.: Disc-bend creep deformation- behavior of 1/2Cr1/2Mo1/4V low-alloy steel, Creep and fracture of engineering materials and structures, 1993, 651–660.

[5] CEN WORKSHOP AGREEMENT Small Punch Test method for Metallic Materials, CWA 15627: 2007 D/E/F, December (2007).

[6] HURST, R., MATOCHA, K.: Experiences with the European Code of Practice for Small Punch Testing for Creep, Tensile and Fracture Behaviour. Proceedings of the 3th International Conference SSTT 2014 Determination of Mechanical Properties of Materials by Small Punch and other Miniature Testing Techniques,. September 23 to 25, 2014, Castle Seggau near Graz, Austria, pp.1-26.

DOI: 10.1520/stp157620140005

[7] KASIVISWANATHAN K. V., KARTHIK V., VISWESWARAN, P., LAHA, K., JAYAKUMAR, T.: Small Specimen Testing – Research and Development activities at IGCAR, India. Proceedings of the 2nd International Conference SSTT Determination of Mechanical properties of Materials by Small Punch and other Miniature Testing Techniques ,. October 2 to 4, 2012, Ostrava, Czech Rep., pp.38-46.

DOI: 10.1016/j.nucengdes.2018.01.016

[8] LI, Y., HURST, R.C., MATOCHA, K., ČIŽEK, P., BLAGOEVA, D.: New Approach to Determine Fracture Toughness from the Small Punch Test. Metallurgical Journal Vol. LXIII, 2010. Conference proceedings of the 1st International Conference SSTT "Determination of Mechanical Properties of Materials by Small Punch and other Miniature Testing Techniques, August 31 to September 2, 2010, p.94.

DOI: 10.1016/j.tafmec.2019.03.015

[9] DORAZIL, O., FILIP, M., MATOCHA, K.: Factors Influencing the Outcome of the Time Independent Small Punch Tests. METALLURGICAL JOURNAL 4/2015, VOL. LXVIII, p.3 – 8, ISSN 0018-8069.

[10] HURST, R.C. and MATOCHA, K.: The European Code of Practice for Small Punch Testing – where do we go from here? Metallurgical Journal Vol. LXIII, 2010. Conference proceedings of the 1st International Conference SSTT "Determination of Mechanical Properties of Materials by Small Punch and other Miniature Testing Techniques, August 31 to September 2, 2010, pp.5-11.

DOI: 10.4028/www.scientific.net/kem.734.3

[11] RODRIGUEZ, C., GARCIA, T. F., BELTUNCE, F. J., PEÑUELAS, I.: The Application of the Small Punch Test to the Mechanical Characterization of Different Steel Grades. Proceedings of the 2nd International Conference SSTT Determination of Mechanical properties of Materials by Small Punch and other Miniature Testing Techniques ,. October 2 to 4, 2012, Ostrava, Czech Rep., pp.188-195.

[12] DYMÁČEK, P., JEČMÍNKA, M.: Applicability of Small Punch Testing Methods for Material Mechanical Properties at Room and High Temperatures. Proceedings of the 3th International Conference SSTT 2014 Determination of Mechanical Properties of Materials by Small Punch and other Miniature Testing Techniques, September 23 to 25, 2014, Castle Seggau near Graz, Austria, pp.65-74.

DOI: 10.4028/www.scientific.net/amm.821.435

[13] DORAZIL, O., MATOCHA, K., ZHU, J., CHEN, Y.: The effect of long term exposition at 540°C on the empirical correlations for determination of mechanical properties of low alloy CrMoV steel from the results of Small Punch tests. Perspective in Science (2016).

DOI: 10.1016/j.pisc.2015.11.025

[14] HURST, R., MATOCHA, K.: Where are we Now with the European Code of Practice for Small Punch Testing? Proceedings of the 2nd International Conference SSTT Determination of Mechanical properties of Materials by Small Punch and other Miniature Testing Techniques ,. October 2 to 4, 2012, Ostrava, Czech Rep., pp.4-18.

DOI: 10.4028/www.scientific.net/kem.734.3

[15] GARCÍA T.E., RODRÍGUEZ C., BELZUNCE F.J.: Small punch test to estimate the mechanical properties of structural steels. Applied mechanics 2012. Plzen 16-18. 4. (2012).

[16] SONG M., GUAN K., QIN W., SZPUNAR J.A.: Comparison of mechanical properties in conventional and small punch tests of fractured anisotropic A350 alloy forging flange. Nuclear Engineering and Design 2012, Vol. 247, June, pp.58-65.

DOI: 10.1016/j.nucengdes.2012.03.023

[17] MORENO, M.F., BERTOLINO, G., YAWNY, A.: The significance of specimen displacement definition on the mechanical properties derived from Small Punch Test. Materials and Design 95 (2016), pp.623-631.

DOI: 10.1016/j.matdes.2016.01.148

[18] MATOCHA, K. at al.: The Effect of Stiffness of the Loading System on Determination of Tensile Characteristics from the Results of Small Punch Tests. Acta Metallurgica Slovaca, Vol. 20, 2014, No. 4, pp.389-396.

DOI: 10.12776/ams.v20i4.425

[19] MATOCHA, K. at al.: The Influence of Loading System Stiffness on Empirical Correlations for Determination of Tensile Characteristics from the results of SP Tests. 2nd Czech-China Scientific Conference 2016, Ostrava, Czech Republic, June 6, 2016. To be published in Perspective in Science.

DOI: 10.5772/66796

[20] BRUCHHAUSEN, M., LAPETITE, J. -M., RIPPLINGER, S., HOLMSTRÖM, S., HÄHNER, P.: Experimental aspect of SP tensile/fracture testing. SP ad hoc meeting, Amsterdam, 16-18 March (2015).

[21] TURBA K., GŮLCIMEN B., LI Y., BLAGOEVA D., HÄHNER P., HURST R.: Introduction of a new notched specimen geometry to determine fracture properties by small punch testing. Engineering Fracture Mechanics, Volume 78, Issue 16, November 2011, pp.2826-2833.

DOI: 10.1016/j.engfracmech.2011.08.014

[22] BULLOCH, J. H.: Toughness Losses In Low Alloy Steels At High Temperatures: An Appraisal Of Certain Factors Concerning The Small Punch Test. International Journal Of Pressure Vessels And Piping 75 (1998), Pp. 791-804.

DOI: 10.1016/s0308-0161(98)00077-5

[23] MATOCHA K., FILIP M., KARTHIK V., KUMAR R. V.: Results of the Round Robin Test for Determination of TSP of P22 Steel by Small Punch Tests. Proc. Of 2nd Int. Conf. SSTT, Determination of Mechanical Properties by Small Punch and other Miniature Testing Techniques, October 2 to 4, 2012, Ostrava, pp.227-232 ISBN 978-80-260-(2079).

DOI: 10.1520/stp157620140015

[24] GAI, X., SATO, Y. S., KOKAWA, H. - ICHIKAWA, K.: Ductile-Brittle Transition Of Steel Electron Beam Weld Metal In Small Punch Test. Science And Technology Of Welding And Joining, 2002, Vol. 7, No 4, Pp. 204-211.

DOI: 10.1179/136217102225004275

[25] MATOCHA, K.: Small-Punch Testing for Tensile and Fracture Behavior: Experiences and Way Forward, Small Specimen Test Techniques: 6th Volume, STP 1576, Mikhail A. Sokolov and Enrico Lucon, Eds., p.145.

DOI: 10.1520/stp157620140005

[26] KONOPÍK P., DŽUGAN J., PROCHÁZKA R.: Determination of fracture toughness and tensile properties of structural steels by small punch test and micro-tensile test. Proc. Of METAL 2013, 15-17 May 2013, Brno, CD-ROMM.

DOI: 10.1520/stp157620140022

[27] SHAH P. K., CHATTERJEE S.: Measurement of tensile and fracture toughness properties using small punch test. Pressure Vessels and Piping. Proc. Of the International Conference & Exhibition on Pressure Vessels and Piping OPE 2006 – CENNAI, 7-9, February 2006, Chennai, India, CD-ROMM.

DOI: 10.1016/0308-0161(94)00050-s

[28] GUAN K., HUA L., WANG Q., ZOU X., SONG M.: Assessment of toughness in long term service CrMo low alloy steel by fracture toughness and small punch test. Nuclear Engineering and Design 241 (2011), p.1407 – 1413.

DOI: 10.1016/j.nucengdes.2011.01.031

[29] DŽUGAN J., KONOPÍK P.: Evaluation of Fracture Toughness Properties for Low Carbon Steel in the Brittle State by Small Punch Test Technique. Proc. 1st Int. Conf. SSTT (Small Sample Test Techniques), Vol. 63, p.119–122; 2010, Metallurgical Journal.

[30] KONOPÍK P., DŽUGAN J.: Small Punch Test Application to Fracture Toughness Determination in the Upper Shelf Region. Proc. 1st Int. Conf. SSTT (Small Sample Test Techniques), Vol. 63, p.123–127; 2010, Metallurgical Journal.

[31] ISO 12135 Metallic materials – Unified method of test for the determination of quasistatic fracture toughness. ISO 12135: 2002(E).

[32] ASTM E1820-15a Standard Test Method for Measurement of Fracture toughness. 2016 Annual Book of ASTM Standards, Section 3, Volume 03. 01, p.1097.

[33] WEN C., TONG X. AND GUAN K. Correlation factor study of small punch creep test and its life prediction. This conference SSTT, Shanghai. October (2016).

DOI: 10.3390/ma9100796

[34] BLAGOEVA D.T., HURST R.C.: Application of the CEN (European Committee for Standardization) small punch creep testing code of practice to a representative repair welded P91 pipe, Materials Science and Engineering A 510–511 (2009) 219–223.

DOI: 10.1016/j.msea.2008.05.058

[35] ANDRES D. AND DYMACEK P. Study of the upper die conditions in the small punch test. To be published in Materials and design, (2016).

[36] ANDRÉS D., DYMÁČEK P., LACALLE, R., ALVAREZ J.A. A Study on the Influence of Different Factors on the Small Punch Creep Test, SSTT2016 Shanghai.

[37] ABENDROTH M. FEM analysis of Small Punch tests, SSTT2016 Shanghai.

[38] JACKSON G.A., McCARTNEY D.G., SUN W. The high temperature creep properties of a thermally sprayed CoNiCrAlY coating via Small Punch Creep testing, SSTT2016, Shanghai.

DOI: 10.4028/www.scientific.net/kem.734.37

[39] DYMACEK P. DOBES F. and KLOC L. Small Punch testing of Sanicro 25 steel and its correlation with uniaxial tests, SSTT2016, Shanghai.

DOI: 10.4028/www.scientific.net/kem.734.70

[40] JEFFS S.P., LANCASTER R.J. and DAVIES S. Effect of build orientation and post processing of a Direct Laser Deposited Nickel superalloy as determined by Small Punch test SSTT2016, Shanghai.

DOI: 10.4028/www.scientific.net/kem.734.128

[41] HYDE C.J. Small ring testing of high temperature materials, SSTT2016, Shanghai.

[42] LANCASTER R.J., ILLSLEY H.W., HURST R.C., JEFFS S.P., BAXTER G. A novel approach to Small Punch fatigue testing, SSTT2016, Shanghai.

DOI: 10.4028/www.scientific.net/kem.734.61

[43] DYMACEK P., IPM, Brno, Czech Republic, private communication.

[44] HOLMSTROM, S. JRC, Petten, Netherlands, private communication.

[45] WILSHIRE B., BATTENBOUGH A.J. Creep and creep fracture of polycrystalline copper. Mater Sci Eng A 2007; 443A: pp.156-166.

DOI: 10.1016/j.msea.2006.08.094

[46] WILSHIRE, B. SCHARNING, P. J, HURST, R.C., A new methodology for long term creep data generation for power plant components. Baltica VII Conf. on Life Management and Maintenance for Power Plants, vol. 1, 2007, p.196–207.

DOI: 10.1179/174892407x266653

[47] HOLMSTROM, S, HÄHNER P., HURST R., BRUCHHAUSEN, M., FISCHER, B., LAPETITE, J-M, GUPTA, M., Small punch creep testing for material characterization and life time prediction, 10th Liege Conference: Proc. Materials for Advanced Power Engineering 2014, ISSN 1866-1793. (2014).