Effect of cast and heat treatment processes on microstructure and properties of k4169 superalloy

Ye Da Lian, Li Qiang Gao, Ping Wang, Qian Yin, Pin Pin Hu, Zhi Xun Wen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The effects of cast and heat treatment processes on microstructure and mechanical property of K4169 alloy have been investigated. The results show that low shell and pouring temperature can significantly improve the room temperature tensile and elevated temperature stress-rupture properties of the alloy; The joint function of hot isostatic pressing (HIP) and homogenization+solution+aging (HSA)standard heat treatment can effectively close casting defects such as micro-looseness, significantly improve the segregation of the alloy structure, basically eliminate the Laves phase, only a small amount of MC carbide dispersed in the grain boundary and short rod-shaped δ-phase. What is the most significant is that a large number of lenticular γ'' phases are uniformly precipitated, which enhance the microstructural stability, and significantly improve the room temperature tensile properties and high temperature endurance properties of K4169 alloy.

Original languageEnglish
Title of host publicationMetallurgy Technology and Materials VIII - Selected peer-reviewed full text papers from the 8th International Conference on Metallurgy Technology and Materials, ICMTM 2020
EditorsNor Sabirin Mohamed
PublisherTrans Tech Publications Ltd
Pages25-30
Number of pages6
ISBN (Print)9783035737004
DOIs
StatePublished - 2021
Event8th International Conference on Metallurgy Technology and Materials, ICMTM 2020 - Xian, China
Duration: 1 Aug 20202 Aug 2020

Publication series

NameSolid State Phenomena
Volume315 SSP
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Conference

Conference8th International Conference on Metallurgy Technology and Materials, ICMTM 2020
Country/TerritoryChina
CityXian
Period1/08/202/08/20

Keywords

  • Heat treatment
  • Hot isostatic pressing
  • Mechanical properties
  • Microstructure evolution
  • Superalloy

Fingerprint

Dive into the research topics of 'Effect of cast and heat treatment processes on microstructure and properties of k4169 superalloy'. Together they form a unique fingerprint.

Cite this