Grain-controlled heating process design of GH4169 case ring thermoforming

doi:10.13251/j.issn.0254-6051.2021.04.037

Abstract

Abstract: GH4169 casing ring has to be repeatedly heated to a high temperature during the forming process, which results in grain coarsening. Based on the established phase evolution model and grain growth model of GH4169 superalloy, the heating processes for hot forming of the casing ring were formulated. The results of calculations and experiments show that the established heating processes can significantly hinder the grain growth of the casing ring during the blank making and rolling process.

Key words: GH4169 case ring, thermoforming, heating specification

CLC Number:

TG15

Li Yaojun, Huang Hai, Gu Qing, Lan Jian. Grain-controlled heating process design of GH4169 case ring thermoforming[J]. Heat Treatment of Metals, 2021, 46(4): 200-204.

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