Materials characterization techniques for reverse engineering on small engine part

Name: Lambongang, Joe Yenube.

LCSH: Nanostructured materials -- Classification.

LCSH: Reverse engineering.

Abstract: Probing and measuring the microstructure of materials and their properties as we generally term as materials characterization could sometimes be a challenging task. Especially when the samples are very small in sizes and are from unknown materials which are suspected to have been through feature changing fabrication processes. In this study, the candidate’s main objective was to investigate for the most appropriate material characterization techniques when determining the materials, fabrication and key features related to the function abilities of two small engine part (E85 and Non-E85 port fuel injectors). To achieve this objective amidst numerous limitations; a well formulated plan was made, whereby all relevant techniques were experimented starting from nondestructive techniques to destructive techniques. In metallic material analysis, the magnetic properties of the samples were first determined; followed by chemical analysis of which X-Ray Fluorescence (XRF) of different x-ray sources and probe sizes were experimented. This was then followed by microstructure analysis. The polymer type was determined by Fourier Transform Infrared spectroscopy (FT-IR) along with Differential Scanning Calorimeter (DSC). In fabrication analysis, with the help of CT scan and LOM helped to detect traces such as welding seam and edge irregularities. Grain flow analysis also helped significantly in determining the fabrication techniques. The coating was also analyzed by X-ray Photoelectron Spectroscopy (XPS). The coating analysis revealed a significant difference in the sp2 and sp3 of the DLC coating used on various components of the port fuel injectors. This ratio variation happens to have significantly contributed in the functional abilities of both types of port fuel injector and hence, causing one of them to have the capability to run on E85 while the other does not have that capability

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Name: Piyada Suwanpinij

Role: Thesis advisors.

Email : piyada.s@tggs.kmutnb.ac.th, piyada.s.mme@tggs-bangkok.org

Name: Siriporn Daopiset

Role: Thesis advisors.

Email : siriporn.a@eng.kmutnb.ac.th, sir@kmutnb.ac.th

Created: 2017

Modified: 2020-10-05

Issued: 2020-10-05

วิทยานิพนธ์/Thesis

application/pdf

eng

DegreeName: Master of Engineering

Level: Master's Degree

Descipline: Materials and Production Engineering (International Program)

Grantor: King Mongkut's University of Technology North Bangkok

©copyrights King Mongkut's University of Technology North Bangkok

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