Metall. Res. Technol.
Volume 116, Number 5, 2019
Inclusion cleanliness in the metallic alloys
|Number of page(s)||10|
|Published online||09 August 2019|
An assessment of cleanliness techniques for low alloyed steel grades
2 Ascometal, Hagondange, France
3 Aubert & Duval, Les Ancizes, France
4 Datamet, Metz, France
5 Safran Tech, Magny-les-Hameaux, France
* e-mail: email@example.com
Accepted: 21 November 2018
In order to find a method to characterize the inclusion distribution of high-cleanliness materials, complementary techniques were tested, such as high-frequency (80 MHz) ultrasonic testing, X-ray tomography or Extreme Value Analysis (EVA). The micro-cleanliness was also characterized by standard methods based on observations of polished surfaces by light optical or scanning electronic microscopy. The combination of all these techniques, enhanced by metiS software, allows us to determine the complete 3D distribution of oxides or to estimate the probability of largest inclusion size by modelling virtual samples. At the end, fatigue testing was performed in order to try to link fatigue results to previous characterization outcomes.
Key words: cleanliness / characterization techniques / ultrasonic testing / X-ray tomography
© EDP Sciences, 2019
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