ME 3701 Final Example || with 100% Errorless Answers.

password: correct answers materialslab strain hardening correct answers occurs following yielding of ductile metals chauvenets criterion correct answers 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 answers Steps to Chauvenets Criterion the data set follows a normal (gaussian) distribution correct answers repeated measured data is often plotted on probability paper to determine if modulus of resilience correct answers the ability of a material to absorb energy elastically metallographic samples correct answers must be washed thoroughly between grinding and polishing to avoid station contamination nanometers correct answers measurement for X-ray wavelength yield strength correct answers beginning of plastic deformation Charpy and Izod testing correct answers 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 answers Difference between Charpy and Izod testing Rockwell testing correct answers 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 answers 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 answers 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