Experimental study of aging effect on mechanical and vibrational properties on carbon steel SA516

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Hamisi Mohammad; Moussavi Torshizi Seyed Ebrahim

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Journal: Modares Mechanical Engineering Year:2018 | Volume:18 | Issue:7 Page(s): 50-55

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Title

Experimental study of aging effect on mechanical and vibrational properties on carbon steel SA516

Author(s)

Hamisi Mohammad | Moussavi Torshizi Seyed Ebrahim | Issue Writer Certificate

Keywords

Life estimationQ1

Carbon steelQ1

AgingQ1

Microstructural changeQ1

Mechanical and Vibrational properties50Q1

Abstract

In long-terms of overheating conditions, structural changes are the most important cause of mechanical deterioration and reduce the life of hot components. Given the difficulty or costliness of tests needed to assess the remaining life, searching for a non-destructive, simpler and more accurate way to estimate the remaining life of hot components and assess their remaining life is essential and have many economic benefits. The purpose of this study is to investigate the effect of structural changes on natural frequencies and damping coefficients of samples of Carbon steel SA516-Grade55 so that, if there are significant effects, this method will be developed for other metals, in particular hot power plant parts. In this research, severe structural changes were observed on the samples by performing heat treatment of Aging. As perlite decompose into ferrite and spheroidal carbides in the boundaries. With increasing structural changes, it was found that the natural frequencies of the first to sixth modes and the elastic modulus are decreased and the coefficients of damping and logarithmic decrease are increased significantly. These promising results are the elaboration of a non-destructive new method for estimating the remaining life for components of different types under long-term overheated operation conditions.

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APA: Copy

Hamisi, Mohammad, & Moussavi Torshizi, Seyed Ebrahim. (2018). Experimental study of aging effect on mechanical and vibrational properties on carbon steel SA516. MODARES MECHANICAL ENGINEERING, 18(7 ), 50-55. SID. https://sid.ir/paper/179573/en

Vancouver: Copy

Hamisi Mohammad, Moussavi Torshizi Seyed Ebrahim. Experimental study of aging effect on mechanical and vibrational properties on carbon steel SA516. MODARES MECHANICAL ENGINEERING[Internet]. 2018;18(7 ):50-55. Available from: https://sid.ir/paper/179573/en

IEEE: Copy

Mohammad Hamisi, and Seyed Ebrahim Moussavi Torshizi, “Experimental study of aging effect on mechanical and vibrational properties on carbon steel SA516,” MODARES MECHANICAL ENGINEERING, vol. 18, no. 7 , pp. 50–55, 2018, [Online]. Available: https://sid.ir/paper/179573/en

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