Effects of Heat-Treatment on the Microstructure of TiAl-Nb Produced with Laser Metal Deposition Technique

2017 ◽  
Author(s):  
M. Tlotleng ◽  
T. Lengopeng ◽  
M. Seerane ◽  
S. Pityana
Keyword(s):  
Heat Treatment ◽  
Metal Deposition ◽  
Laser Metal Deposition ◽  
Deposition Technique

Heat Treatment Design for IN718 by Laser Metal Deposition with High Deposition Rates — Modeling, Simulation and Experiments

2020 ◽  
Author(s):  
Chongliang Zhong ◽  
Venkatesh Pandian ◽  
Norbert Pirch ◽  
Andres Gasser ◽  
Gandham Phanikumar
Keyword(s):  
Heat Treatment ◽  
Metal Deposition ◽  
Laser Metal Deposition ◽  
Deposition Rates ◽  
Modeling Simulation ◽  
Treatment Design

scholarly journals Influence of Process Conditions on the Local Solidification and Microstructure During Laser Metal Deposition of an Intermetallic TiAl Alloy (GE4822)

2021 ◽  
Vol 52 (3) ◽  
pp. 1106-1116
Author(s):  
Silja-Katharina Rittinghaus ◽  
Jonas Zielinski
Keyword(s):  
Heat Treatment ◽  
Additive Manufacturing ◽  
Process Parameters ◽  
Titanium Aluminides ◽  
Metal Deposition ◽  
Experimental Investigations ◽  
Process Conditions ◽  
Laser Metal Deposition ◽  
Melt Pool ◽  
Temperature Regimes

AbstractTemperature-time cycles are essential for the formation of microstructures and thus the mechanical properties of materials. In additive manufacturing, components undergo changing temperature regimes because of the track- and layer-wise build-up. Because of the high brittleness of titanium aluminides, preheating is used to prevent cracking. This also effects the thermal history. In the present study, local solidification conditions during the additive manufacturing process of Ti-48Al-2Cr-2Nb with laser metal deposition (LMD) are investigated by both simulation and experimental investigations. Dependencies of the build-up height, preheating temperatures, process parameters and effects on the resulting microstructure are considered, including the heat treatment. Solidification conditions are found to be dependent on the build height and thus actual preheating temperature, process parameters and location in the melt pool. Influences on both chemical composition and microstructure are observed. Resulting differences can almost be balanced through post heat treatment.

Experimental and Taguchi-Based Grey Approach of Laser Metal Deposition Technique on Nickel-Based Superalloy

2018 ◽  
Vol 72 (1) ◽  
pp. 205-214 ◽  
Author(s):  
Ramesh Raju ◽  
Vinothkumar Sivalingam ◽  
Jie Sun ◽  
Manikandan Natarajan ◽  
Yanzhe Zhao
Keyword(s):  
Metal Deposition ◽  
Laser Metal Deposition ◽  
Deposition Technique ◽  
Nickel Based Superalloy

scholarly journals Laser metal deposition technique: sustainability and environmental impact

2018 ◽  
Vol 21 ◽  
pp. 109-116 ◽  
Author(s):  
Kamardeen O. Abdulrahman ◽  
Esther T. Akinlabi ◽  
Rasheedat M. Mahamood
Keyword(s):  
Environmental Impact ◽  
Metal Deposition ◽  
Laser Metal Deposition ◽  
Deposition Technique

Heat Treatment Design for IN718 by Laser Metal Deposition with High Deposition Rates: Modeling, Simulation, and Experiments

2022 ◽  
Author(s):  
Chongliang Zhong ◽  
Venkatesh Pandian Narayana Samy ◽  
Norbert Pirch ◽  
Andres Gasser ◽  
Gandham Phanikumar ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Metal Deposition ◽  
Laser Metal Deposition ◽  
Deposition Rates ◽  
Modeling Simulation ◽  
Treatment Design
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