| |
Apr 19, 2024
|
|
|
|
|
ME 823 - Powder Metallurgy3 lecture hours 0 lab hours 3 credits
Course Description
The objective of this course is to introduce the principles of the powder metallurgy to the students. Applications of P/M parts are today associated with improved quality, high productivity, new and improved material properties as well as conserving raw material and energy. The course will mainly focus on sintered iron and steel and will teach the students to consider P/M as a design alternative. In the lab the students will characterize the powder, mix powders to form their own alloy, study the effect of process parameters, and determine the mechanical properties. Fracture analysis using the scanning electron microscope will show the differences between P/M materials and conventional steels. (prereq: ME 521 or equivalent)
Course Learning Outcomes
Upon successful completion of this course, the student will be able to:
- Understand the technological and metallurgical principles of powder metallurgy
- Understand the correlation between process parameters and properties of P/M materials
- Characterize powders, understand the compacting and the sintering process
- Understand the effect of porosity on properties of P/M materials and the significant differences to properties of steel and other wrought materials
- Apply the most important criteria for designing P/M parts
- Understand the importance of the P/M process for material utilization and energy conservation
Prerequisites by Topic
- Science of engineering materials
Course Topics
- Introduction, history of PM, definitions of P/M, P/M materials
- Powder fabrication: mechanical comminution, chemical reactions, liquid metal atomization, electrolytic deposition.
- Powder characterization: particle shape, size and distribution, surface area
- Powder preparation: mixing and blending, powder lubrication, flow, apparent density, compressibility
- Shaping and compacting: fundamentals of compacting, cold compacting with dies, design guidelines, isostatic compacting
- Sintering: fundamentals and sintering theory, mixed powder, liquid phase sintering, effect of sintering atmospheres, sintering furnaces
- Full density processing: enhanced sintering techniques, powder forging
- Properties of sintered steel: effect of density, alloying elements, and impurities
- Application of P/M materials: filter; bearings, structural parts, powder forged parts
- Experiments: powder characteristics, compressibility, sintering, mechanical properties, microstructure, scanning electron microscope
Coordinator
Dr. Matt Panhans
Add to Portfolio (opens a new window)
|
|
Skip to Main Content
