MECHANICAL METALLURGY |
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Page 340
... cent / hr or 1 per cent / 10,000 hr , or ( 2 ) the stress for a creep rate of 0.00001 per cent / hr or 1 per cent / 100,000 hr ( about 111⁄2 years ) . The first criterion is more typical of the requirements for jet - engine alloys ...
... cent / hr or 1 per cent / 10,000 hr , or ( 2 ) the stress for a creep rate of 0.00001 per cent / hr or 1 per cent / 100,000 hr ( about 111⁄2 years ) . The first criterion is more typical of the requirements for jet - engine alloys ...
Page 381
... cent of the maximum energy . This is because the 50 per cent energy level is close to the ductility transition for the keyhole speci- men but near the fracture transition for the V - notch specimen . Good correlation is found between ...
... cent of the maximum energy . This is because the 50 per cent energy level is close to the ductility transition for the keyhole speci- men but near the fracture transition for the V - notch specimen . Good correlation is found between ...
Page 540
... cent of experi- mental results for all reductions when a is less than about 6 ° , and for a up to 20 ° the equation is valid within ± 10 per cent for reductions greater than about 25 per cent . Whitton has developed an empirical ...
... cent of experi- mental results for all reductions when a is less than about 6 ° , and for a up to 20 ° the equation is valid within ± 10 per cent for reductions greater than about 25 per cent . Whitton has developed an empirical ...
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