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5. Determine the ASTM grain size of a polycrystalline Gold if 2000 grains are seen at 100x magnification in 1 square inch under the microscope.

5. Determine the ASTM grain size of a polycrystalline Gold if 2000 grains are seen at 100x magnification in 1 square inch under the microscope.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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**Question 5:** Determine the ASTM grain size of a polycrystalline Gold if 2000 grains are seen at 100x magnification in 1 square inch under the microscope. *Explanation:* The task requires calculating the grain size based on the ASTM standards, which involve a correlation between grain count and grain size number. When 2000 grains are observed in a specified area at a given magnification, the ASTM grain size number can be determined using standard charts or formulas. This process is crucial in materials science to understand and predict the properties of metals and alloys.
Transcribed Image Text:**Question 5:** Determine the ASTM grain size of a polycrystalline Gold if 2000 grains are seen at 100x magnification in 1 square inch under the microscope. *Explanation:* The task requires calculating the grain size based on the ASTM standards, which involve a correlation between grain count and grain size number. When 2000 grains are observed in a specified area at a given magnification, the ASTM grain size number can be determined using standard charts or formulas. This process is crucial in materials science to understand and predict the properties of metals and alloys.
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The aim of a microscope is to produce high-quality, magnified images of things that are difficult to view with the naked eye. To understand how microscopes work, three image-creation components must be considered: magnification, resolution, and contrast. Understanding these features will allow you to make better use of this important piece of scientific equipment.

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