The effect of annealing temperatures on the resistance to delayed fracture and cyclic endurance of various regions of heat-affected zone of alloy OT4 is studied. Low-temperature maxima of resistance to delayed fracture and of cyclic endurance are discovered for the regions of heat-affected zone heated above the temperature of polymorphic transformation. The highest operating capacity under cyclic and long-term static loads is determined in the regions exposed to heating above 1000°C.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 39 – 41, April, 2009.
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Shushpanov, M.N., Kolomenskii, B.A., Zubarev, V.Y. et al. Effect of annealing modes on the working capacity of the heat-affected zone of welds of alloy OT4. Met Sci Heat Treat 51, 191 (2009). https://doi.org/10.1007/s11041-009-9138-4
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DOI: https://doi.org/10.1007/s11041-009-9138-4