Microstructural characteristics and mechanical properties of WAAM components
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K. Sommer
Konstantin Sommer born in Ukraine, in 1987. He studied mechanical engineering at University of Applied sciences (HTW) in Berlin and graduated in 2017. Since 2014 active in the field of additive manufacturing, investigating the field from design, material and process perspectives. Since 2023 lecturer at University of Applied Sciences for material and production science.
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A. Pfennig
Anja Pfennig studied Minerology at the Rheinische Friedrich Wilhelms University Bonn, Germany, where she graduated in 1997. Her Ph.-D. was earned in 2001 from the Friedrich Alexander University of Erlangen, Germany. She then worked for Siemens Energy in Berlin where she conducted scientific research on the oxidation of high temperature materials and corrosion behavior of steels used in Carbon Capture Techniques. 2009 she became full professor at the Applied University Berlin, HTW where she currently teaches material science for engineering students.
Abstract
Wire arc additive manufacturing (WAAM) is a process enabling the deposition of components with complex geometries while using high deposition rates. The WAAM process is associated with specific thermal process conditions resulting in inhomogeneities in the microstructure and thus, anisotropic properties within a component.
Using a WAAM component made of high-alloy steel 1.4370 as an example, correlations between the microstructural gradients and the mechanical properties will be studied based on hardness measurements. To this end, the phases and characteristic features present in the microstructure will be linked to hardness profiles measured in different regions of the WAAM component.
Kurzfassung
Wire Arc Additive Manufacturing (WAAM) ist ein Verfahren der additiven Fertigung, das es ermöglicht, komplexe Geometrien mit hohen Aufbauraten zu erzeugen. Der WAAM-Prozess ist mit spezifischen thermischen Prozessbedingungen verbunden, die innerhalb eines Bauteils Inhomogenitäten im Gefüge und somit auch eine Anisotropie der Eigenschaften bewirken.
Am Beispiel des hochlegierten Stahls 1.4370, hergestellt mittels WAAM, sind die Zusammenhänge zwischen den Gradienten im Gefüge und den mechanischen Eigenschaften am Beispiel der Härte untersucht. Hierzu sind die auftretenden Phasen und charakteristischen Gefügestrukturen mit den Härte-Verläufen in verschiedenen Bereichen eines WAAM-Bauteils in Zusammenhang gebracht.
About the authors
Konstantin Sommer born in Ukraine, in 1987. He studied mechanical engineering at University of Applied sciences (HTW) in Berlin and graduated in 2017. Since 2014 active in the field of additive manufacturing, investigating the field from design, material and process perspectives. Since 2023 lecturer at University of Applied Sciences for material and production science.
Anja Pfennig studied Minerology at the Rheinische Friedrich Wilhelms University Bonn, Germany, where she graduated in 1997. Her Ph.-D. was earned in 2001 from the Friedrich Alexander University of Erlangen, Germany. She then worked for Siemens Energy in Berlin where she conducted scientific research on the oxidation of high temperature materials and corrosion behavior of steels used in Carbon Capture Techniques. 2009 she became full professor at the Applied University Berlin, HTW where she currently teaches material science for engineering students.
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Articles in the same Issue
- Contents
- Editorial
- Editorial
- Microstructural characteristics and mechanical properties of WAAM components
- Grain size characterization of nickel alloy 718 with optimized metallographic sample preparation route followed by a novel etching technique
- High-resolution microscopy of biofilm and bacteria on titanium implants
- Failure Analysis
- Failure analysis of LCF cracked medium-voltage switch bellows
- Picture of the Month
- Picture of the Month
- News
- News
- Meeting Diary
- Meeting Diary
