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Determine the ASTM grain size number for the materials in Figure 4-14 and Figure 4-20.
Figure 4-14 Microstructure of palladium
Figure 4-20 Microstructure of iron. (From ASM Handbook, Vol. 9, Metallography and Microstructure (1985), ASM International, Materials Park, OH 44073. Reprinted with permission of ASM International. All rights reserved. www. asminternational.org.) (Repeated for Problem 4-59.)
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