1. Chapter 4 Material Property Charts
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

2. Bar Charts – One Property
Figure 4.1
Each property of an engineering material has a characteristic range of values; the bar chart shows the modulus for a family of solids
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

3. Bubble Charts – Multiple Properties
Figure 4.2
Young’s modulus plotted against density on log scales; each material class occupies a characteristic field
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

4. Young’s Modulus - Density
Figure 4.3
The guide lines of constant E/ρ, E1/2/ρ, and E1/3/ρ allow selection of materials for minimum weight, deflection-limited, design
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

5. Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

6. Strength - Density
Figure 4.4
The guide lines of constant σf/ρ, σf2/3/ρ, and σf1/2/ρ are used in minimum weight, yield-limited design
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

7. Strength – Modulus: The design guide lines help with the selection of materials for springs, pivots, knife-edges, diaphragms, and hinges
Figure 4.5
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

8. Specific modulus E/ρ plotted against specific strength σf/ρ; the design guide lines help with the selection of materials for lightweight springs and energy-storage systems
Figure 4.6
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

9. Figure 4.7
Plot of fracture toughness vs. Young’s modulus helps in design against fracture
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

10. Material selection for damage-tolerant design should utilize the fracture toughness vs. strength property chart
Figure 4.8
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

11. Loss Coefficient – Young’s Modulus
Figure 4.9
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

12. Thermal Conductivity – Electrical Resistivity
Figure 4.10
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

13. Thermal Conductivity – Thermal Diffusivity
Figure 4.11
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

14. Thermal Expansion – Thermal Conductivity
Figure 4.12
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

15. Thermal Expansion – Young’s Modulus
Figure 4.13
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

16. Maximum Service Temperature
Above this temperature, the material becomes unusable
Figure 4.14
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

17. Figure 4.15
Bar chart of the friction coefficient of materials sliding on an unlubricated steel counterface
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

18. Figure 4.16
The normalized wear rate plotted against the hardness; the chart gives an overview of the way in which common engineering materials behave
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

19. The cost of a material can be expressed in two ways: $/kg or $/m3
Figure 4.17
The cost of a material can be expressed in two ways:
$/kg or
$/m3
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

20. Young’s Modulus – Cost Per Unit Volume
Figure 4.18
Chart helps the selection to maximize stiffness per unit cost
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby

21. Strength – Cost Per Unit Volume
Design guide lines help selection to maximize strength per unit cost
Figure 4.19
Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby