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Licensed Unlicensed Requires Authentication Published by De Gruyter May 31, 2013

Neutron Bragg-edge mapping of weld seams

Nikolay Kardjilov , Ingo Manke , André Hilger , Scott Williams , Markus Strobl , Robin Woracek , Mirko Boin , Eberhard Lehmann , Dayakar Penumadu and John Banhart


Cold neutrons have a wavelength that is in the same range as the lattice spacings of most polycrystalline metallic materials. Imaging of such materials with monochromatic cold neutrons of different wavelengths provides a unique contrast due to coherent Bragg scattering. Additionally, the spectral positions of the Bragg edges can be mapped for each point of an image by using the transmission data of corresponding wavelength scans. We present investigations of welded components with such energy-selective neutron radiography around specific Bragg-edges in the transmission spectrum. Features in the local microstructure of the weld have been visualized.

* Correspondence address Dr. Nikolay Kardjilov, Helmholtz-Zentrum Berlin, Hahn-Meitner Platz 1, 14109 Berlin, Germany, Tel.: +49 30 80 62 42 298, Fax: +49 30 80 62 43 059, E-mail:


[1] J.Chen, P.Shen: Scripta Mater.37 (1997) 1287. 10.1016/S1359-6462(97)00261-3Search in Google Scholar

[2] S.R.Wang, P.Shen: Mater. Sci. Eng. A251 (1998) 106. 10.1016/S0921-5093(98)00638-8Search in Google Scholar

[3] K.T.Lin, P.Shen: Mater. Sci. Eng. A270 (1999) 125. 10.1016/S0921-5093(99)00199-9Search in Google Scholar

[4] J.Rankin, B.W.Sheldon: Mater. Sci. Eng. A204 (1995) 48. 10.1016/0921-5093(95)09936-0Search in Google Scholar

[5] V.Y.Doo, R.W.Balluffi: Acta Metall.6 (1958) 428.10.1016/0001-6160(58)90021-XSearch in Google Scholar

[6] J.P.Poirier: Creep of Crystals, Cambridge University Press, Cambridge (1985).10.1017/CBO9780511564451Search in Google Scholar

[7] M.Y.Li, P.Shen, S.L.Hwang: Mater. Sci. Eng. A343 (2003) 227. 10.1016/S0921-5093(02)00328-3Search in Google Scholar

[8] K.C.Yang, P.Shen, D.Gan: J. Eur. Ceram. Soc.28 (2008) 1169. 10.1016/j.jeurceramsoc.2007.09.049Search in Google Scholar

[9] D.A.Porter, E.A.Easterling: Phase Transformations in Metals and Alloys, 2nd ed.Van Nostrand Reinhold, New York (1992).10.1007/978-1-4899-3051-4Search in Google Scholar

[10] M.L.Wu, D.Gan, P.Shen: Mater. Sci. Eng. A297 (2001) 119. 10.1016/S0921-5093(00)01268-5Search in Google Scholar

[11] K.C.Yang, P.Shen: J. Solid State Chem.178 (2005) 661. 10.1016/j.jssc.2004.12.019Search in Google Scholar

[12] K.C.Yang, P.Shen, D.Gan: J. Solid State Chem.179 (2006) 3478. 10.1016/j.jssc.2006.07.020Search in Google Scholar

[13] T.Eto, A.Sato, T.Mori: Acta Metall.26 (1978) 499.10.1016/0001-6160(78)90175-XSearch in Google Scholar

[14] H.C.Yu, P.Shen: J. Euro. Ceram. Soc., 28 (2008) 91. 10.1016/j.jeurceramsoc.2007.06.016Search in Google Scholar

[15] T.Chen and P.Shen: J. Phys. Chem. C, 113 (2009) 328. 10.1021/jp8084793Search in Google Scholar

[16] T.J.B.Holland, S.A.T.Redferen: Unitcell Refinement from Powder Diffraction Data: the Use of Regression Diagnostics (1997).10.1180/minmag.1997.061.404.07Search in Google Scholar

[17] H.Y.Lin: MS thesis, National Sun Yat-sen University, Taiwan 2009.Search in Google Scholar

[18] C.Y.Pan: MS thesis, National Sun Yat-sen University, Taiwan 2009.Search in Google Scholar

[19] A.Masson, J.J.Mtois, R.Kern: Surf. Sci.27 (1971) 463. 10.1016/0039-6028(71)90182-8Search in Google Scholar

[20] R.Kern, A.Masson, J.J.Mtois: Surf. Sci.27 (1971) 483. 10.1016/0039-6028(71)90183-XSearch in Google Scholar

[21] J.J.MtoisM.Gauch, A.Masson, R.Kern: Surf. Sci.30 (1972) 43. 10.1016/0039-6028(72)90022-2Search in Google Scholar

[22] J.J.MtoisM.Gauch, A.Masson, R.Kern: Thin Solid Films11 (1972) 205. 10.1016/0040-6090(72)90046-6Search in Google Scholar

[23] J.J.Mtois: Surf. Sci.36 (1973) 269. 10.1016/0039-6028(73)90261-6Search in Google Scholar

[24] L.Y.Kuo, P.Shen: Surf. Sci.373 (1997) L350. 10.1016/S0039-6028(96)01258-7Search in Google Scholar

[25] A.Einstein: Investigations on the Theory of the Brownian Movement, Methuen (1926).Search in Google Scholar

[26] S.Gladstone, K.Laidler, H.Eyring: The Theory of Rate Processes, McGraw-Hill, New York (1941).Search in Google Scholar

[27] R.D.Shannon: Acta Crystallogr. A32 (1976) 751. 10.1107/S0567739476001551Search in Google Scholar

[28] A.Putnis: Introduction to Mineral Sciences, Cambridge University Press, Cambridge (1992).10.1017/CBO9781139170383Search in Google Scholar

[29] F.A.KrögerH.J.Vink: Solid State Phys.3 (1956) 307.10.1016/S0081-1947(08)60135-6Search in Google Scholar

[30] M.Oku, Y.Sato: Appl. Surf. Sci.55 (1992) 37. 10.1016/0169-4332(92)90378-BSearch in Google Scholar

[31] S.H.Sun, G.W.Meng, G.X.Zhang, T.Gao, B.Y.Geng, L.D.Zhang, J.Zuo: Chem. Phys. Lett.376 (2003) 103. 10.1016/S0009-2614(03)00965-5Search in Google Scholar

[32] R.G.Burns: Mineralogical Applications of Crystal Field Theory, Cambridge University Press, Cambridge (1993).10.1017/CBO9780511524899Search in Google Scholar

[33] B.Soffa: Diffusional Pathways in the Decomposition of Alloys. In International Conference on Solid-Solid Phase Transformation in Inorganic Materials 2005, Phoenix (2005).Search in Google Scholar

Received: 2011-8-17
Accepted: 2011-11-4
Published Online: 2013-05-31
Published in Print: 2012-02-01

© 2012, Carl Hanser Verlag, München

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