Mechanical Properties in Progressive Mechanically Processed Metallic Materials

• Andre forfattere: Kocich, Radim (Editor), Kunčická, Lenka (Editor)
• Format: Electronisk Book Chapter
• Sprog: engelsk
• Udgivet: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute 2021
• Fag: History of engineering & technology; crack nucleation; fatigue; plastic deformation; surface topography; high-entropy alloy; powder metallurgy; microstructure; spring steel; heat treatment; retained austenite; Mössbauer spectroscopy; neutron diffraction; tungsten heavy alloy; rotary swaging; finite element analysis; deformation behaviour; residual stress; austenitic steel 08Ch18N10T; cyclic plasticity; cyclic hardening; experiments; finite element method; low-cycle fatigue; tungsten; dislocations; microstrain; twist channel angular pressing; severe plastic deformation; mechanical properties; disintegrator; microscopy; wear; high energy milling; cement; sintering; quenching; abrasive waterjet; machining; traverse speed; material structure; material properties; cutting force; deformation force; clad composite; effective strain; heat-resistant steel; cast steel; microalloying; strengthening mechanism; abrasive water jet cutting; surface roughness; hardness; tensile strength; functional properties; metallic systems; mechanical processing; structural phenomena
• Online adgang: DOAB: download the publication; DOAB: description of the publication

The demands on innovative materials given by the ever-increasing requirements of contemporary industry require the use of high-performance engineering materials. The properties of materials and alloys are a result of their structures, which can primarily be affected by the preparation/production process. However, the production of materials featuring high levels of the required properties without the necessity to use costly alloying elements or time- and money-demanding heat treatment technologies typically used to enhance the mechanical properties of metallic materials (especially specific strength) still remains a challenge. The introduction of thermomechanical treatment represented a breakthrough in grain refinement, consequently leading to significant improvement of the mechanical properties of metallic materials. Contrary to conventional production technologies, the main advantage of such treatment is the possibility to precisely control structural phenomena that affect the final mechanical and utility properties. Thermomechanical treatment can only decrease the grain size to the scale of microns. However, further research devoted to pushing materials' performance beyond the limits led to the introduction of severe plastic deformation (SPD) methods providing producers with the ability to acquire ultra-fine-grained and nanoscaled metallic materials with superior mechanical properties. SPD methods can be performed with the help of conventional forming equipment; however, many newly designed processes have also been introduced.