Effect of Aging Treatment on the Microstructure and Properties of K4648 Superalloy

  • Yang Gao
  • Yongji Niu
  • Zhenrui Li
  • Rong Zhang
Conference paper


As the superalloy K4648 is a high Cr content alloy, the different heat treatment process affects the precipitation of α-Cr and Cr carbides. In this paper, the heat treatment experiment of K4648 superalloy was carried out. The results showed that the morphology and quantity of α-Cr phase in the alloy were very sensitive to the heat treatment. With the increase of aging temperature, the tensile strength of the alloy at room temperature decreased gradually, and the elongation and contraction furnace gradually increased, and the room temperature impact toughness increased to a certain extent and remained unchanged.


K4648 superalloy Aging treatment Mechanical property 


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© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Beijing Beiye Functional Materials CorporationBeijingChina
  2. 2.University of Science and Technology BeijingBeijingChina

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