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ME 3701 Final Example With Questions And Verified Answers. $12.99
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ME 3701 Final Example With Questions And Verified Answers.
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  • TMN 3701

password: - correct answer materialslab strain hardening - correct answer occurs following yielding of ductile metals chauvenets criterion - correct answer ...

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  • May 16, 2024
  • 10
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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ME 3701 Final Example
password: - correct answer materialslab
strain hardening - correct answer occurs following yielding of ductile metals
chauvenets criterion - correct answer identify outliers in repeated measures data, and determine if the data points can be eliminated from analysis only
rank data-> calculate average-> mean deviation(di)-> standard deviation-> compare to chart using number of readings(n)-> if points are rejected, calculate new average without the point(s)
-> calculate new % below Xi-> graph - correct answer Steps to Chauvenets Criterion
the data set follows a normal (gaussian) distribution - correct answer repeated
measured data is often plotted on probability paper to determine if
modulus of resilience - correct answer the ability of a material to absorb energy elastically
metallographic samples - correct answer must be washed thoroughly between
grinding and polishing to avoid station contamination
nanometers - correct answer measurement for X-ray wavelength
yield strength - correct answer beginning of plastic deformation
Charpy and Izod testing - correct answer used to measure toughness
both use V notched samples Charpy test: specimen placed horizontal with v-notched faced away from the hammer
Izod: specimen placed vertical with v-notch facing toward hammer - correct answer Difference between Charpy and Izod testing
Rockwell testing - correct answer used to determine HARDNESS of steel-- consists of measuring additional depth to which an indenter is forced by a heavy(major) load beyond the
depth of previously applied light (minor) load
Difference between Rockwell and Brinell Hardness Tests?
Rockwell- hardness is determined by measuring the DEPTH of the indentation Brinell- hardness is measured by indentation SIZE - correct answer Difference between Rockwell and Brinell Hardness Tests?
eliminates backlash in the load train, and causes indenter to break through slight surface roughness and to crush particles of foreign matter--> much greater accuracy in test - correct answer What is the benefit of first applying a minor load to the specimen before the major load in Rockwell hardness testing?eliminates backlash in the load train, and
Aluminum alloys, Copper Alloys, soft steels, malleable iron - correct answer When do you use B scale for Hardness Testing?
Steel, and other metals harder than 100 HRB - correct answer When do you use C scale for Hardness Testing?
60 HRC - correct answer How do you write the result of a hardness test on the C scale with a reading of 60?
80 HRB - correct answer How do you write the result of a hardness test on the B scale with a reading of 80?
Austempering - correct answer used to facilitate formation of bainite (hard and brittle microstructure), quench in salt bath then cool at room temp

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