The obtained results and the literature reviewed show that, peening is effective in stress relieving. X-ray diffraction was used in order to verify the efficacy of peening as a stress-relieving process. The effects of peening in the mechanical properties of welded metal deposited by shield metal arc welding, using the electrodes E-6010, E-7018 and E-8018C-2, and the weld metal deposited by submerged arc welding, using the filler metals ENil and EA3, are also analysed. The efficacy of the process of stress relieving by hammer-peening, in heavy plates of low carbon steel is analysed. Peening as a stress relieving method for welded joints As a result, age hardening actually decreases the susceptibility of this alloy to residual stress induced stress corrosion cracking It is shown that the residual stress relief which accompanies age hardening of uranium - 0.75% titanium more than compensates for the reduction in K/sub ISCC/ caused by aging. The potential danger of residual stress induced stress corrosion cracking of uranium alloys is discussed.
Stress relieving is accelerated in cases where it occurs simultaneously with age hardening. In the high temperature regime (300 0 C 0 C) the process appears to be controlled by a classical diffusional creep mechanism which is strongly dependent on temperature and time. In the low temperature regime (T 0 C) the process appears to be controlled by an athermal microplasticity mechanism which can be completely suppressed by prior age hardening. Two temperature regimes of stress relieving are observed. The kinetics of thermal stress relieving of uranium - 2.3 wt. The potential danger of residual stress induced stress corrosion cracking of uranium alloys is discussed The kinetics of thermal stress relieving of uranium - 2.3 wt % niobium, uranium - 2.0 wt % molybdenum, and uranium - 0.75 wt % titanium are reported and discussed.
Thermal stress relieving of dilute uranium alloys The electromagnetic radiation is selected from the ranges of infrared, microwave or ultraviolet radiation Exposure occurs at one or more ranges of frequencies which are capable of being absorbed by the polymer and which are effective for stress relieving without or substantially without causing heat induced softening or flowing of the polymer. An article comprised of the polymer is exposed to electromagnetic radiation, for a time period sufficient to absorb enough energy to stress relieve the polymer against stress cracking therein. The method can be used in the preparation of printed circuit boards. International Nuclear Information System (INIS)Ī method of rapidly relieving stress in an extruded or molded polymer article is disclosed. Radiation stress relieving of polymer articles
0 kommentar(er)
