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Файл:(EOD).Materials information.pdf
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- •1. TABLE OF CONTENTS
- •2. MATERIAL PROPERTIES
- •2.1 TERMINOLOGY
- •2.2 MICROSTRUCTURES
- •2.2.1 Atomic Structures
- •2.2.1.1 - Crystal Structures
- •2.3 IRONS AND STEELS
- •2.3.1 Types of Steel
- •2.3.1.1 - Alloying Elements
- •2.3.2 Making Steels
- •2.3.2.1 - The Ores
- •2.3.2.2 - Coke
- •2.3.2.3 - Flux, Slag
- •2.3.3 The Blast Furnace - How To Make Pig Iron
- •2.3.4 How To Make Steel
- •2.3.4.1 - Electric Furnaces
- •2.3.5 Forming The Steel
- •2.3.6 Stainless Steel
- •2.4 NONFERROUS METALS AND ALLOYS
- •2.4.1 Aluminum
- •2.4.2 Titanium
- •2.5 HEAT TREATING
- •2.6 PAUL JOHNSON NOTES FOR EGR 250
- •2.6.1 Atomic Bonding and Structure
- •2.6.1.1 - Atomic Structure
- •2.6.1.2 - Periodic Table
- •2.6.2 Ideal Crystal Structure
- •2.6.3 Crystal Imperfections
- •2.6.4 Diffusion
- •2.6.5 Mechanical Properties of Metals
- •2.6.6 Dislocations and Strengthening Mechanisms
- •2.6.7 Phase Diagrams
- •2.6.8 Phase Transformations
- •2.6.9 Metal Alloys
- •2.6.10 Ceramics
- •2.6.11 Electrical Properties
- •2.6.12 Thermal Properties
- •2.6.13 Magnetic Properties of Materials
- •2.6.14 Optical Properties of Materials
- •2.7 PRACTICE PROBLEMS
page 15
Duplex -
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2.4 NONFERROUS METALS AND ALLOYS
2.4.1 Aluminum
2.4.2 Titanium
•silver colored
•close packed hexagonal structure (alpha phase)
•above 885°C the material undergoes beta phase transition to body centered cubic arrangements
•four commercial grades ASTM 1-4
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Properties |
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Chemistry |
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Grade |
UTS (ksi) YS (ksi) Elong. |
N (%) |
C (%) |
H (%) |
Fe (%) |
O2 (%) |
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1 |
35 |
25 |
24 % |
0.03 |
0.10 |
0.015 |
0.20 |
0.18 |
2 |
50 |
40 |
20 % |
0.03 |
0.10 |
0.015 |
0.30 |
0.25 |
3 |
65 |
55 |
18 % |
0.05 |
0.10 |
0.015 |
0.30 |
0.35 |
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•melts at 1800°C
•resistance to corrosion
•twice steels strength to density
•high affinity for carbon
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