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Study of the metallic alloys surface hardness using LIBS technique / Doaa Mohamed Fahim Mohamed ; Supervised Mohamed AbdelhHarith Mohamed , Arafa Kamal Kassem , Olodia Aied Nassef

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Doaa Mohamed Fahim Mohamed , 2014Description: 115 P. : facsimiles ; 25cmOther title:
  • LIBS دراسة الصلابة السطحية لسبائك معدنية باستخدام تقنية [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - National Institute of Laser Enhanced Science - Department of Laser Application in Environmental Metrology Photochemistry and Agricultural Summary: Laser induced breakdown spectroscopy (LIBS) is a well known spectrochemical elemental analysis technique. However, it has been shown recently that it is possible to use LIBS for the surface hardness determination of solid targets. In the present work LIBS is exploited to determine the surface hardness of two different types of metallic alloys, a titanium based alloy (Ti- 6Al - 4V) and an iron based alloy (Fe93Ni4Ti3). It has been shown that there is a direct proportionality relation between the ionic to atomic spectral lines intensity ratios and the surface hardness values measured mechanically via Vickers hardness test for different samples of both alloys. Such proportionality has been demonstrated adopting different ionic and atomic spectral lines ratios from the LIBS spectra of the samples of both alloys. However, it has been proven that the intensity ratio of the ionic to atomic lines Ti II 444.38 nm / Ti I 398.97 nm can be used to determine the surface hardness for both Ti- 6Al - 4V and Fe93Ni4Ti3 alloys
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.24.05.M.Sc.2014.Do.S (Browse shelf(Opens below)) Not for loan 01010110064731000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.24.05.M.Sc.2014.Do.S (Browse shelf(Opens below)) 64731.CD Not for loan 01020110064731000

Thesis (M.Sc.) - Cairo University - National Institute of Laser Enhanced Science - Department of Laser Application in Environmental Metrology Photochemistry and Agricultural

Laser induced breakdown spectroscopy (LIBS) is a well known spectrochemical elemental analysis technique. However, it has been shown recently that it is possible to use LIBS for the surface hardness determination of solid targets. In the present work LIBS is exploited to determine the surface hardness of two different types of metallic alloys, a titanium based alloy (Ti- 6Al - 4V) and an iron based alloy (Fe93Ni4Ti3). It has been shown that there is a direct proportionality relation between the ionic to atomic spectral lines intensity ratios and the surface hardness values measured mechanically via Vickers hardness test for different samples of both alloys. Such proportionality has been demonstrated adopting different ionic and atomic spectral lines ratios from the LIBS spectra of the samples of both alloys. However, it has been proven that the intensity ratio of the ionic to atomic lines Ti II 444.38 nm / Ti I 398.97 nm can be used to determine the surface hardness for both Ti- 6Al - 4V and Fe93Ni4Ti3 alloys

Issued also as CD

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