Masters Theses

Keywords and Phrases

Jominy End Quench test

Abstract

"This work examines the effect of heat treatment parameters on hardness, electrical conductivity and microstructure of A356 and B319 cast aluminum alloys. The use of Jominy End Quench test to investigate quench effect and its important role to control of properties of these alloys was developed. Also, prediction of these properties in different points of large section castings was developed.

Analyzing the hardness versus Jominy distance gave the determination of the importance of each heat treatment parameter. Also, Avrami parameters for each heat treatment cycle were validated to fit the Avrami curves to the hardness versus Jominy distance curves.

In order to investigation of effects of variable heat treatment parameters on hardness of each of A356 and B319 alloys, nine different heat treatment parameters were chosen. Sixteen different heat treatment cycles were done on Jominy End Quench bars of each alloy based on the variable heat treatment parameters. These were evaluated by a Design of Experiment matrix which uses sixteen samples for each alloy.

Techniques used included hardness testing; electrical conductivity measurements; Differential Scanning Calorimetry; and also microstructure observation using optical microscopy, Scanning Electron Microscopy, and Field Emission Scanning Electron Microscopy were employed to examine properties and microstructures of these alloys"--Abstract, page iii.

Advisor(s)

Newkirk, Joseph William

Committee Member(s)

Kohser, Ronald A.
Fahrenholtz, William

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Metallurgical Engineering

Publisher

University of Missouri--Rolla

Publication Date

Spring 2004

Pagination

ix, 113 pages

Note about bibliography

Includes bibliographical references (pages 105-111)

Rights

© 2004 Alidad Mohammadi, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Library of Congress Subject Headings

Aluminum alloys -- Heat treatment

Thesis Number

T 8463

Print OCLC #

56427915

Link to Catalog Record

Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.

http://laurel.lso.missouri.edu/record=b5122945~S5

Share My Thesis If you are the author of this work and would like to grant permission to make it openly accessible to all, please click the button above.

Share

 
COinS