Reminder: Upcoming Seminar next Monday, Nov. 1, at 1 pm.
WebEx: https://purdue.webex.com/meet/xzhang98
From: Msegradstudent-list <msegradstudent-list-bounces@ecn.purdue.edu>
On Behalf Of Morgan, Yuan-Yu Karen
Sent: Wednesday, October 20, 2021 12:34 PM
To: msegradstudent-list@ecn.purdue.edu; msefaculty-list@ecn.purdue.edu; msepostdoc-list@ecn.purdue.edu
Cc: Ku Blanco, Aury Y <akublanc@purdue.edu>
Subject: [msegradstudent-list] Preliminary Exam Seminar
Please consider attending this seminar:
MATERIALS ENGINEERING
“Mechanical Properties and Deformation Mechanisms of Ball Milled Nanocrystalline Al Alloys”
By
Xuanyu Sheng
Purdue MSE Preliminary Exam
Advisor: Professor Xinghang Zhang
ABSTRACT
Nanocrystalline aluminum alloys have gained specific interest in aerospace and automotive industries as they exhibit superior mechanical properties when comparing with their coarse grain counterparts.
Mechanical milling (also referred to as ball milling frequently) is an effective method to produce nanostructured metals and composite powders and has been commonly employed to prepare nanocrystalline aluminum alloys. Ball milling techniques also promote significant
grain refinement and alloying at atomic level, thus give rise to the significant improvement of mechanical properties. In this report, the microstructure, mechanical properties, and deformation mechanisms of ball-milled nanocrystalline aluminum alloy are discussed.
When the grain size of nanocrystalline Al is below a critical value, competition of different deformation mechanisms may occur. The proposed models shed light on improving the mechanical properties of nanocrystalline aluminum alloys.
Date: Nov 1, 2021
Time: 1:00 PM
WebEx: https://purdue.webex.com/meet/xzhang98
Yuan-Yu Karen Morgan,Ph.D.
Academic Advisor-Graduate Program
School of Materials Engineering
Neil Armstrong Hall of Engineering, Room 2217
765-494-4103