MSE 200 NCSU Test 2, Questions and answers, 100% Accurate. Verified.

MSE 200 NCSU Test 2, Questions and answers, 100% Accurate. Verified. nonferrous stress-strain curve has - -no serrations and high plasticity Fatigue crack growth rate is higher under - -higher humidity The first stage of fatigue damage is - -formation of intrusions and extrusions to improve fatigue properties, ion nitriding is used to - -introduce surface compressive stress the region of the graph that gives constant value of fracture toughness is - -in plane strain To measure the critical fracture toughness, - -the sample should be thickness larger than width If we increase grain size, fracture toughness will - -decrease If crack size is increased, critical fracture toughness - -will not change A hardness test that is very versatile and covers all materials with different indenters and loads is - -Rockwell hardness test Hardness for metals is a measure of - -work hardening behavior Major changes in properties of materials take place upon - -heating a material after cold work during recrystallization