1. bookVolume 3 (2020): Issue 2 (October 2020)
Journal Details
License
Format
Journal
First Published
30 Jan 2019
Publication timeframe
2 times per year
Languages
English
access type Open Access

Investigation of Composite Behaviour of Lath Martensite

Published Online: 11 Nov 2020
Page range: 90 - 93
Journal Details
License
Format
Journal
First Published
30 Jan 2019
Publication timeframe
2 times per year
Languages
English
Abstract

It is very important for our research that we are able to examine the orientation of packets and their relationship to directions of stress that cause plastic deformation. We use electron backscatter diffraction (EBSD) to achieve this. EBSD examination requires very careful sample preparation. In our work we have developed a sample preparation method for electron bakcscatter diffraction examination. In this study we present the method, which consists of multistage mechanical grinding, polishing and ion polishing. Optimal parameters for each steps (eg.: grinding, polishing and sputtering time, milling angle) were determined for lath martensitic steel, however, it could be used for other type of steel with minor adjustments.

Keywords

[1] Krauss G.: Martensite in steel: strength and structure. Material Science and Engineering A, 273-275. (1999) 40–57. https://doi.org/10.1016/S0921-5093(99)00288-9Search in Google Scholar

[2] Krauss G., Mader A. R.: The morphology of martensite in iron alloys. Metallurgical Transactions, 2. (1971) 2343–2357. https://doi.org/10.1007/BF02814873Search in Google Scholar

[3] Morito S., Tanaka H., Konishi R., Furuhara T., Maki T.: The morphology and crystallography of lath martensite in Fe-C alloys. Acta Materialia, 51. (2003) 1789–1799. https://doi.org/10.1016/S1359-6454(02)00577-3Search in Google Scholar

[4] Kitahara H., Ueji R., Tsuji N., Minamino Y.: Crystallographic features of lath martensite in low-carbon steel. Acta Materialia, 54. (2006) 1279–1288. https://doi.org/10.1016/j.actamat.2005.11.001Search in Google Scholar

[5] Swarr T., Krauss G.: The effect of structure on the deformation of as-wuenched and tempered martensire in an Fe-0.2 pct C alloy. Metallurgical Transactions A, 7/1. (1976) 41–48. https://doi.org/10.1007/BF02644037Search in Google Scholar

[6] Michiuchi M., Nambu S., Ishimoto Y., Inoue J., Koseki, T.: Relationship between local deformation behavior and crystallographic features of asquenched lath martensite during uniaxial tensile deformation. Acta Materialia, 57. (2009) 5283–5291. https://doi.org/10.1016/j.actamat.2009.06.021Search in Google Scholar

[7] Nambu S., Michiuchi M., Ishimoto Y., Asakura K., Inoue J., Koseki T.: Transition in deformation behaviour of martensitic steel during large deformation under unaxial tensile laoading. Scripta Materialia, 60. (2009) 221–224. https://doi.org/10.1016/j.scriptamat.2008.10.07Search in Google Scholar

[8] Ghassemi-Armaki H., Chen P., Bhat S., Sadagopan S. Kumar S., Bower A.: Microscale-calibrated modeling of the deformation response of low-carbon martensite. Acta Materialia, 61. (2013) 640–3652. https://doi.org/10.1016/j.actamat.2013.10.001Search in Google Scholar

[9] Mine Y., Hirashita K., Takashima H., Matsuda M., Takashima K.: Micro-tension behaviour of lath martensite structures of carbon steel. Material Science and Engineering A, (2013) 535–544. https://doi.org/10.1016/j.msea.2012.09.099Search in Google Scholar

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