Preface

Tribology is a branch of science that deals with machine elements and their friction, wear, and lubrication.

This book presents the fundamentals of tribology, with chapters on its applications in engines, metal forming, seals, blasting, sintering, laser texture, biomaterials, and grinding.

In Section 1, Chapter 1, discusses how abrasion can be controlled through the variables of hardness and size. Chapter 2, is fundamental for understanding how current raw materials can be manipulated to improve the performance of machine elements. Chapter 3 examines models of contact mechanics to combat elastic deformation. Chapter 4 discusses thermal control during abrasive conditions. Chapter 5 discusses the use of nitride-based coatings to protect against harsh machining operations and Chapter 6 discusses the use of molybdenum disulfide to promote solid lubricant.

In Section 2, Chapter 7 introduces the main issues associated with marine diesel engines. Chapter 8 discusses the friction determination observed in metal forming, and Chapter 9 examines how to optimize dry gas seals through groove shape. Chapter 10 presents how to characterize a surface after blasting. Chapter 11 compares two routes to improve tribological performance using random or deterministic textures. Chapter 12 examines the application of a coating to biomaterials and Chapter 13 shows how to estimate the grain trajectory for abrasive machining.

> **Giuseppe Pintaude and Tiago Cousseau** Academic Department of Mechanics, Universidade Tecnológica Federal do Paraná, Curitiba, Brazil
