Effects of adding Ni and Co on microstructure and gamma prime phase stability in Ni superalloy Inconel 738 with 1 wt.-% Al
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Panyawat Wangyao
,
Tanaporn Rojhirunsakool
Abstract
The effects of adding nickel and cobalt to Inconel 738 along with adding 1 wt.-% of aluminum were investigated in this study. The alloys, with various amounts of nickel and cobalt, were prepared using a vacuum arc melting process. The alloys were heat treated using a standard heat treatment procedure which consisted of solution treatment at 1448 K for 14.4 ks and precipitation aging at 1118 K for 86.4 ks. Increased nickel content was shown to enhance the stability of gamma prime particles and the gamma matrix as well as assist the formation of gamma prime particles. In the case of the addition of cobalt, the coarsening rate of gamma prime particles decreased with increasing cobalt content. Furthermore, a further addition of aluminum to Inconel 738 resulted in an increase in the area fraction of the gamma prime phase and more rapid growth of gamma prime particles during long-term heating compared to standard Inconel 738.
© 2020 by Walter de Gruyter Berlin/Boston
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- BEZUGSQUELLEN
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Articles in the same Issue
- Title
- CONTENTS
- Materials Testing
- FACHBEITRÄGE
- Identification parameters for accident reconstruction software at frontal car impact
- Effects of adding Ni and Co on microstructure and gamma prime phase stability in Ni superalloy Inconel 738 with 1 wt.-% Al
- Light-weight design of automobile suspension components using topology and shape optimization techniques
- Development of a bond graph model for electromechanical actuators
- Research on the fatigue resistance of weld ends
- Effects of sections added to multi-cell square tubes on crash performance
- Analysis of the electrical discharge machining (EDM) performance on Ramor 550 armor steel
- The equilibrium optimization algorithm and the response surface-based metamodel for optimal structural design of vehicle components
- The mine blast algorithm for the structural optimization of electrical vehicle components
- Microstructure, Mechanical and Corrosion Behavior of Additively Manufactured Steel: A Review (Part 1)
- Identification of the concrete damage degree based on the principal component analysis of acoustic emission signals and neural networks
- Multi-response optimization of AA 8011 and 12 wt.-% fly ash composites
- Effects of process parameters on the formability of sheet metal during plastic injection forming
- Mechanical and thermal properties of PVC and polyurethane foam hybrid composites
- BEZUGSQUELLEN
- BEZUGSQUELLEN
