X17CrNi16-2 Martensitic Stainless Steel – Temperature Dependency of Material Properties, Short-Time Creep Behavior and Fracture Toughness Assessment

摘要

This paper presents experimentally obtained data which can be very important for the design procedure of engineering components made of X17CrNi16-2 (1.4057, AISI 431) steel. That way, material mechanical properties represented by engineering stress-strain diagrams at both lowered and elevated temperatures as well as short-time creep behavior curves for selected stress levels at selected temperatures are displayed. An effect of lowered and elevated temperature on mechanical properties is exhibited. Mechanical properties as well as short -time creep behavior were determined by uniaxial tensile tests using modern materials testing machine. Fracture toughness assessment was made according to notch impact energy which was determined using Charpy impact machine.