Presentation provided for non-technical audiences, which may be interested in steel research.

1. Building Lighter Cars with Advanced High-Strength Steels Charles Lester Georgia Institute of Technology School of Materials Science and Engineering 3/15/2011

2. Automotive Applications of Steel Motivation for Improvement in the Automotive Industry Desirable Attributes of Steel Wheel Materials Strengthening Mechanisms Why Now? Current Research Summary 2 Overview

3. 3 Applications Locations of Steel Components Rear Cross-Member Wheel Pillar ArcelorMittal; http://www.arcelormittal.com

4. Fuel Efficiency Physical Metallurgy of Modern High Strength Steels, ISIJ International , Vol. 41 (2001), pp.520-532 4 Motivation for Improvement

5. Fuel Efficiency Aesthetics Create complex shapes New Microalloyed Steel Applications for the Automotive Industry, Materials Science Forum, pp87-96 5 Motivation for Improvement

6. Fuel Efficiency Aesthetics Create complex shapes Manufacturing Considerations Welding different parts together Ability to form parts using conventional methods Cost MachineDesign.com; http://machinedesign.com/article/cranking-out-wheels-0807 6 Motivation for Improvement

7. Shackleford, J., Introduction To Materials Science for Engineers, pp. 193 7 Mechanical Attributes Stress Strain

8. Shackleford, J., Introduction To Materials Science for Engineers, pp. 193 8 Desirable Attributes Stress Strain

9. Solid solution hardening Putting extra material into iron Precipitation hardening Letting material fall out of iron Grain refinement Making the Iron particles smaller Work hardening Applying a load to the iron 9 Strengthening Mechanisms

10. Control of the process has improved Computer control Temperature control Microalloying Material can be added in precise amount 10 Why Now?

11. Current Research Solid Solution Hardening Precipitation Hardening 11

12. Motivation for steel research Fuel Efficiency Aesthetics Effective Manufacturing Maximize the absorbed energy Effective strengthening mechanisms Better Processing 12 Summary Lighter Steels = Better Fuel Mileage

13. 13 Questions