资料性能温习资料(国外英文资料).docVIP

材料性能复习资料(国外英文资料) Reference answer: One, the noun explanation Paramagnetic: Ferromagnetic: Magnetostrictive: Hysteresis effect: Residual magnetic intensity: Coercive force: Hysteresis losses: The heat capacity: Specific heat: Specific pressure heat capacity: Ratio of heat capacity: Thermal expansion: Heat transfer: Thermal conductivity: Creep: Such as strong temperature: Creep limit: Persistent strength: The stress relaxation: Slack stability: Fatigue: the failure of the workpiece due to cumulative damage due to the long-term effects of fluctuating load and strain. Reside slip band: under the cyclic loading, even if the cyclic stress does not exceed the material yield strength, also can produce cycle slip band, on the surface with electrolytic polishing can also be difficult to remove, even removed again after loading also will appear in its place. This perpetual or reproduced circular slip band is the resident slip belt. Fatigue strength: under the specified fatigue life, the material can bear the maximum cyclic stress. Overload lasting value: the material is working under certain stress of fatigue strength, and the stress cycle of fatigue fracture occurs. Subload exercise: the material will run a certain number of times under the stress of fatigue strength, which can improve the fatigue strength of the machine and prolong the service life. Thermal fatigue: the damage caused by the thermal stress or thermal strain caused by periodic changes. Low stress brittle: the brittle fracture occurs when the material or machine is not stressed at work, even if it is well below the yield limit. Stress field strength factor: the effect of stress, length and crack tip stress field on the strength of the crack tip stress field. Fracture toughness: when stress or crack size increases to a critical value, the crack tip stress reached the material fracture toughness and crack instability extension lead to fracture, long stress intensity factor at this time has reached a critical val