Functional and Smart Materials

6   Advanced Processing of Superalloys for Aerospace Industries

Swadhin Kumar Patel, Biswajit Swain, and Ajit Behera

NIT Rourkela

CONTENTS

6.1     Introduction

6.2     Demands and Improvements of Aircrafts

6.3     What Is a Superalloy?

6.4     Types of Superalloys and Their Important Phases

6.4.1     Ni-Based Superalloys

6.4.2     Fe-Ni-Based Superalloys

6.4.3     Co-Based Superalloys

6.5     Fabrication Processes of Superalloys

6.5.1     Investment Casting

6.5.2     Directional Solidification

6.5.3     Powder Metallurgy

6.5.3.1     Conventional Press-and-Sinter

6.5.3.2     Hot Isostatic Pressing (HIP)

6.5.3.3     Self-Propagating High-Temperature Synthesis (SHS)

6.5.3.4     Spark Plasma Sintering (SPS)

6.5.3.5     Microwave Sintering

6.5.3.6     Metal ...