Ultra-high Strength Structural Steel

This book focuses on the ultra-high strength structural steel with yield strength 1000MPa and above, systematically introduces the design of alloy composition and microstructure, the phase transition behavior, principle of modifications to microstructure and mechanical performance, weldability and fatigue performance. Ultra-high strength structural steel has strict requirements for comprehensive mechanical properties, the steel needs good combination of strength and toughness, simultaneously, good weld ability and fatigue performance are necessary to meet the industrial application. This book describes in detail the structural changes of ultra-high strength structural steel under different process conditions and clarifies the relationship between the microstructure and the comprehensive mechanical properties. This book is a resource for scientific researchers and technical developers engaged in the research, development and equipment design of steel materials and is a reference for teachers and students of metal materials and related majors in universities.