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Neutron scattering residual stress measurements on gray cast iron brake discs
| 题名： | Neutron scattering residual stress measurements on gray cast iron brake discs |
| 作者： | Hubbard, C.R.;Payzant, E.A.;Spooner, S.; |
| 关键词： | 36 MATERIALS SCIENCE ;42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES ; BRAKES; ANNEALING; RESIDUAL STRESSES; NEUTRON DIFFRACTION; CAST IRON; STRESS CORROSION; FATIGUE; CRACK PROPAGATION; DEFORMATION; STRAIN RATE |
| 摘要： | Neutron diffraction was used to investigate the effects of a heat treatment designed to remove internal residual stresses in brake discs. It is believed that residual stresses may change the rate of deformation of the discs during severe braking conditions when the disc temperature is increased significantly. Neutron diffraction was used to map out residual strain distributions in a production disc before and after a stress-relieving heat treatment. Results from these neutron diffraction experiments show that some residual strains were reduced by as much as 400 microstrain by stress relieving. 5 refs., 5 figs., 1 tab. |
| 总页数： | 4p |
| 报告类型： | 科技报告 |
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