Cold Spray Additive Manufacturing: From Fundamentals to Applications (Springer Tracts in Additive Manufacturing)

✍ Scribed by Shuo Yin, Rocco Lupoi

• Publisher: Springer
• Year: 2021
• Tongue: English
• Leaves: 198
• Category: Library

✦ Synopsis

This book systematically describes the status quo and future development of cold spray additive manufacturing technology. It starts with a comprehensive introduction to the fundamentals of cold spray additive manufacturing, including its history, working principle, equipment, processing parameters and powder feedstock. It then discusses the fundamentals of and the latest developments in the gas flow character, particle acceleration, particle deposition and bond mechanism from the perspectives of both experiments and modelling to provide readers with insights into the cold spray additive manufacturing process. Further, it explores microstructure and properties, which are major concerns in the context of cold sprayed deposits. The book also highlights the strengthening strategies for cold sprayed deposits, from pre- and in-process to post-treatment. Lastly, it examines the current and potential applications of cold spray additive manufacturing.

✦ Table of Contents

Preface
Contents
About the Authors
1 Introduction to Cold Spray Additive Manufacturing
1.1 Cold Spray Process Principle
1.2 Cold Spray System
1.3 Cold Spray Additive Manufacturing
References
2 Gas Flow, Particle Acceleration and Heat Transfer in Cold Spray Additive Manufacturing
2.1 Analytical Models
2.1.1 Gas Flow Models
2.1.2 Particle Motion Models
2.2 CDF Modeling
2.2.1 Computational Methodology
2.2.2 Gas Dynamics Properties in Cold Spraying
2.2.3 Particle Velocity and Trajectory in Cold Spraying
2.2.4 Particle Temperature
2.2.5 Heating of the Substrate and Nozzle Wall
2.3 Experimental Investigations
2.3.1 Visualization of the Gas Flow
2.3.2 Particle Velocity Measurement
2.3.3 Substrate and Coating Temperature Measurement
References
3 Manufacturing Parameters for Cold Spray Additive Manufacturing
3.1 Summary of the Manufacturing Parameters for CSAM
3.2 Propulsive Gas Parameters for CSAM
3.3 Powder Feeder Parameters for CSAM
3.4 Nozzle Traverse Speed
3.5 Nozzle Scanning Step
3.6 Standoff Distance
3.7 Spray Angle
3.8 Nozzle Trajectory
References
4 Microstructures of Cold Sprayed Deposits
4.1 Introduction
4.2 Dislocations in Cold Sprayed Deposits
4.2.1 Influence of Stack Fault Energy
4.2.2 Influence of Alloying Elements
4.2.3 Influence of Manufacturing Parameters
4.3 Grain Structure
4.3.1 Grain Structure in a Single Splat Particle
4.3.2 Grain Structure in Full Deposits
4.4 Influential Factors for Grain Structure in Cold Sprayed Deposits
4.4.1 Microstructure in Feedstock Particles
4.4.2 Manufacturing Parameters
4.5 Intermetallic Compounds and Amorphization
4.5.1 Intermetallic Compounds
4.5.2 Amorphization
References
5 Strengthening Strategies for Cold Sprayed Deposits
5.1 Conventional Annealing
5.2 Hot Isostatic Pressing
5.3 Hot Rolling
5.4 In-Situ Shot-Peening
5.5 In-Situ Densification
5.6 Laser-Assistant Cold Spray
5.7 Friction Stirring Processing
5.8 Powder Annealing
References
6 Cold Sprayed Metal Matrix Composites
6.1 Composite Feedstock
6.1.1 Mechanical Blending
6.1.2 Ball-Milling
6.1.3 Cladding
6.1.4 Agglomerating and Sintering
6.2 Deposition Mechanism
6.2.1 Deposition Mechanism of Mechanically Blended Feedstock
6.2.2 Deposition Mechanism of Ball-Milled and Sintered Feedstock
6.2.3 Deposition Mechanism of Cladded Feedstock
6.3 Microstructures and Mechanical Properties
References
7 Cold Sprayed Nanostructured Metallic Deposits
7.1 Nanocrystalline Metal Deposits via CSAM
7.2 1D-Material-Reinforced MMC Deposits via CSAM
7.3 2D-Material-Reinforced MMC Deposits via CSAM
7.3.1 Graphene-Reinforced MMC Deposits
7.3.2 WS2-Reinforced MMC Deposits
7.3.3 hBN-Reinforced MMC Deposits
References
8 Cold Sprayed Metallic Glass and High Entropy Alloy Deposits
8.1 Introduction to Metallic Glasses and High Entropy Alloys
8.2 Feedstock
8.3 Microstructures
8.3.1 Microstructures of Cold Sprayed Metallic Glass Deposits
8.3.2 Microstructures of Cold Sprayed High Entropy Alloy Deposits
8.4 Bonding Mechanism of Cold Sprayed Metallic Glass Deposits
References
9 Industrial Applications of Cold Spray Additive Manufacturing
9.1 Machining of CSAM Deposits
9.1.1 Machinability of CSAM Deposits
9.1.2 Cutting Forces During the Machining of CSAM Deposits
9.1.3 Tool Wear During the Machining of CSAM Deposits
9.1.4 Properties and Microstructure of CSAM Deposits After Machining
9.2 CSAM for Fabricating Free-Standing Components
9.2.1 Rotational Structures
9.2.2 Complex Structures
9.3 CSAM for Repairing Damaged Components
9.3.1 Corrosive and Erosive Damage Restoration
9.3.2 Mechanical Damage Restoration
9.3.3 Damaged Metal Sheet Restoration
References
10 Summary and Outlooks
10.1 Summary
10.2 Outlooks