MECHANICAL METALLURGY |
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Page 265
... quenched to a fully martensitic structure and then tempered . The best criterion for comparing the tensile properties of quenched and tempered steels is on the basis of an as - quenched struc- ture of 100 per cent martensite . However ...
... quenched to a fully martensitic structure and then tempered . The best criterion for comparing the tensile properties of quenched and tempered steels is on the basis of an as - quenched struc- ture of 100 per cent martensite . However ...
Page 266
... quenched and tempered steel may be altered by changing the tempering temperature . Figure 9-20 shows how hardness and the tensile properties vary with tempering temperature for an SAE 4340 steel . This is the typical behavior for heat ...
... quenched and tempered steel may be altered by changing the tempering temperature . Figure 9-20 shows how hardness and the tensile properties vary with tempering temperature for an SAE 4340 steel . This is the typical behavior for heat ...
Page 268
... quench cracking and weld embrittlement , it is an advantage to use a steel with the lowest carbon content consistent with the required as - quenched hardness . For this reason , steels are available with closely spaced carbon contents ...
... quench cracking and weld embrittlement , it is an advantage to use a steel with the lowest carbon content consistent with the required as - quenched hardness . For this reason , steels are available with closely spaced carbon contents ...
Contents
Introduction | 5 |
The Torsion Test | 10 |
Stress and Strain Relationships for Elastic Behavior | 17 |
Copyright | |
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alloys aluminum annealing ASTM axis behavior brittle fracture Burgers vector cent compressive considered constant crack decrease determined diameter dislocation line ductile edge dislocation effect elastic elongation equation factor fatigue limit fatigue properties flow curve fracture stress given grain boundaries hardness increase indentation internal friction lattice load martensite material maximum measure Metals Park modulus notch number of cycles occurs orientation particles pile-up plastic deformation principal stresses Proc produced quenched ratio recrystallization reduction of area region residual stresses resolved shear stress screw dislocations shear stress shown shows single crystals slip direction slip lines slip plane slip system Society for Metals solid solution solute atoms specimen stacking fault steel strain energy strain hardening strain rate stress concentration stress-strain curve structure surface tensile strength tensile stress tension theory tion torsion Trans twins vacancies yield point yield strength yield stress