publication . Other literature type . Article . 2017

Application of Different Heat Treatment to Spheroidal Graphite Cast Iron and its Effect for Damping and Mode Shapes

Lutfiye Dahil; Abdurrahman Karabulut;
Open Access English
  • Published: 18 Oct 2017 Journal: Transactions of FAMENA, volume 41, issue 3 (issn: 1333-1124, eissn: 1849-1391, Copyright policy)
  • Publisher: Faculty of Mechanical Engineering and Naval Architecture
Abstract
In this study, damping and mode shapes were investigated after boriding and austempering the spheroidal graphite cast iron (SGCI). The samples were boronised and austempered at 900℃ for 2 hours by employing the pack cementation method. The samples were cooled and tempered in a salt bath at 250℃ and 375℃ for 1 hour. Once the boriding and austempering processes were completed, the samples were cooled at room temperature and washed with plenty of water. The modal frequencies, damping ratios and mode shapes of these samples exposed to different heat treatments were acquired by using the experimental modal analysis (MA) method. The same characteristic features were a...
Subjects
free text keywords: spheroidal graphite cast iron; mode shapes; damping ratio, Cast iron, engineering.material, engineering, Graphite, Normal mode, Damping ratio, business.industry, business, Metallurgy

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