Stephan Hafenstein
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View article: Hot Isostatic Pressing of Aluminum–Silicon Alloys Fabricated by Laser Powder-Bed Fusion
Hot Isostatic Pressing of Aluminum–Silicon Alloys Fabricated by Laser Powder-Bed Fusion Open
Hot isostatic pressing can be utilized to reduce the anisotropic mechanical properties of Al–Si–Mg alloys fabricated by laser powder-bed fusion (L-PBF). The implementation of post processing densification processes can open up new fields o…
View article: Tensile and compressive behaviour of additively manufactured AlSi10Mg samples
Tensile and compressive behaviour of additively manufactured AlSi10Mg samples Open
Laser powder-bed fusion has become one of the most important techniques in additive manufacturing. For guaranteeing the possibility of manufacturing highly specialized and advanced components, currently intensive research is carried out in…
View article: Heat Treatments and Critical Quenching Rates in Additively Manufactured Al–Si–Mg Alloys
Heat Treatments and Critical Quenching Rates in Additively Manufactured Al–Si–Mg Alloys Open
Laser powder-bed fusion (LPBF) has significantly gained in importance and has become one of the major fabrication techniques within metal additive manufacturing. The fast cooling rates achieved in LPBF due to a relatively small melt pool o…
View article: Simultaneous hot isostatic pressing and solution annealing of aluminum cast alloys followed by instantaneous aging at elevated temperatures
Simultaneous hot isostatic pressing and solution annealing of aluminum cast alloys followed by instantaneous aging at elevated temperatures Open
Age-hardenable aluminum - silicon - magnesium cast alloys are widely applied in automotive and aircraft industries. Hot isostatic pressing is a common method to increase the materials fatigue resistance by reducing the inner porosity of al…
View article: Combined Hot Isostatic Pressing and Heat Treatment of Aluminum A356 Cast Alloys*
Combined Hot Isostatic Pressing and Heat Treatment of Aluminum A356 Cast Alloys* Open
The mechanical and microstructural properties of aluminum A356 cast alloy are investigated as a function of hot isostatic pressing and heat treatment parameters. The combined hot isostatic pressing and heat treatment process leads to an im…
View article: Influence of Temperature and Tempering Conditions on Thermal Conductivity of Hot Work Tool Steels for Hot Stamping Applications
Influence of Temperature and Tempering Conditions on Thermal Conductivity of Hot Work Tool Steels for Hot Stamping Applications Open
The knowledge of thermal conductivity is essential for improving and designing tools for hot working applications like hot stamping and high-pressure aluminum die casting. This study investigates the influence of alloying composition and h…