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Unformatted text preview: Once completely cooled, the bolt and washer are to be removed. Clean-up the specimen to facilitate hardness testing. Hardness measurements are taken using the Rockwell C scale and as follows; starting at the quenched end, make 10 measurements for the first inch, and 5 measurements for the next inch and 3 measurements for the remainder of the bar. Each group will plot hardness vs. distance for the specimen, as well as to answer the following questions. Q1: Why does hardness change along the length of the bar? Q2: How would you expect this data to be different for alloy steel or for steel with lower carbon content? Why? Q3: Draw the expected microstructure along the length of the bar for your specimen, based on the hardness measurements....
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This document was uploaded on 10/28/2011 for the course MSE 250 at Michigan State University.
- Spring '08