DZ4 Alloy Direction Detection Coagulation Turbine Blade Recrystallization Experimental Study

The DZ4 alloy has massively applied in the aircraft engine direction detection coagulation turbine blade's production, in recent years this alloy manufacture turbine blade continuously appeared in the use process are many the break and the crack breakdown, the fault analysis believed many times, the leaf blade surface existence recrystallization organization was induces the crack the important reason. In order to solve the breakdown, this article had pointed studies the DZ4 direction detection to coagulate the alloy leaf blade casting, the machine-finishing craft, has tried to find out the recrystallization organization's formation condition and the manufacture craft link influence factor; Has simulated the leaf blade manufacture process, used, the microscope, the scanning electricity mirror, the golden equal method analysis visually studies the DZ4 alloy direction detection to coagulate II level of turbine blades the organization, looked for the accurate recrystallization organization the macroscopic organization characteristic, the microstructure characteristic as well as the microstructure appearance characteristic; Unifies the related recrystallization theory, from the quota angle, has studied the distortion degree, the distortion speed as well as the soaking time and so on to the recrystallization organization's influence, then proposed the DZ4 alloy direction detection coagulation turbine blade recrystalHzation organization distinguishes the method, as well as the anticipatory control recrystallization produces the measure, for consummated the turbine blade manufacture craft to provide the reliable basis.