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Key_HW_1-1

# Key_HW_1-1 - Key to HOMEWORK 1 Due 12 September 1 Q1.2 2...

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Key to HOMEWORK 1 --- Due 12 September 1. Q1.2 2. Q2.3 3. Roughly sketch a graph of the yield stress due to the Hall-Petch relationship as a function of grain diameter. Hall Petch Law: σ y = σ 0 +k y /(d) 0.5 d=10 nm to 20 nm 4. Q2.8

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5. Q2.9 6. Using table 8.1, create a bar chart (hint: a bar chart is similar to Figure 8.11 in format) of the ultimate tensile strengths of the following materials: 1020 N (1), 1045 N (2), 302 (3), 4140 H (4), Inconel X (5), Ti-6Al-4V (6), and 7075-T6 (7) 0 200 400 600 800 1000 1200 1400 1600 1 2 3 4 5 6 7 7. Plot data points of yield strength and ultimate tensile strength as a function of elongation for the stainless steels in Table 2.5. Label each point with the grade.
8. Plot ultimate tensile strength as a function of yield strength for each aluminum alloy in Table 2.8. Label each point with the grade.

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9. Q2.27 10. What words do the following abbreviations stand for in the context of Chapters 1 and 2: AISI: American Iron and Steel Institute, BCC: Body Centered Cube,
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Key_HW_1-1 - Key to HOMEWORK 1 Due 12 September 1 Q1.2 2...

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