# 6 - transition temperature (average) was calculated to be...

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Lauren Beth Beauchamp LaurenBB Tuesday, September 14, 2010 MSE 280-2B Chapter 6 Homework 6-57. Graphed Data: A. I calculated the transition temperature defined by the average of the energies between the ductile and brittle areas, by looking at my plotted data and determining where I thought each transition temperature (using Figure 6-21, in chapter 6.9, as a guide) was, and then averaging those amounts. In the chart below you can see my estimate for each of the content. I determined the average (transition temperature) to be 36.25 degrees. Silicon Content Average between Brittle and Ductile 2.55 15 2.85 30 3.25 35 3.63 65 Average: 36.25 B. When I calculated the transition temperature using the temperature where the energy was 10 J. When the silicon content was 2.85 it was stated to be 10 J at 25 degrees Celsius. For the other metals I used the points given and averaged the two closest temperatures to produce 10 J. The chart is below, the

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Unformatted text preview: transition temperature (average) was calculated to be 34.375 degrees. Silicon Content Transition Temp where 10 J 2.55 12.5 2.85 25 3.25 37.5 3.63 62.5 Average: 34.375 Lauren Beth Beauchamp LaurenBB Tuesday, September 14, 2010 MSE 280-2B Chapter 6 Homework I believe that silicon will soften cast iron, causing it to be more ductile. I think that in a part to be used at 25 degrees you would want to use about 3% silicon to keep it’s usefulness and let it have a little give. 6-61. A tensile test measures the response of a material to a slowly applied uniaxial force. An impact test measures the ability of a material to absorb the sudden application of a load without breaking. The strain rates are much higher in impact tests versus tensile tests. Also, in impact tests the materials used usually have a notch, making the results different for each test....
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## This note was uploaded on 06/28/2011 for the course MSE 280 taught by Professor Dr.barryandrews during the Fall '10 term at University of Alabama at Birmingham.

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6 - transition temperature (average) was calculated to be...

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