Abstract Microstructure of Titanium Aluminide Alloy Using Powder Forging Titanium aluminide alloys are used in applications where its light weight, high strength, and excellent oxidation resistance are beneficial. Powder forging is a cost-effective and efficient manufacturing process for metal alloys. This process is used for the production of parts that require high strength and wear resistance. In this paper, the microstructure of a titanium aluminide alloy produced by powder forging was investigated. Samples were analyzed by optical microscopy, SEM, and X-ray diffraction (XRD). The results revealed that the microstructure of the alloy included primary α-Ti and secondary α-Ti and β-TiAl phases. The secondary phases were mainly located at the grain boundaries, indicating that the powder forging process produced a well-distributed microstructure. The hardness of the alloy increased as the size of the grains decreased, indicating that the powder forging process increased the hardness of the alloy. The titanium aluminide alloy produced by powder forging had good mechanical properties and wear resistance, making it suitable for a variety of applications. Introduction In recent years, titanium aluminide (TiAl) alloys have been widely studied and used due to their excellent properties. TiAl alloys have an excellent strength-to-weight ratio, high resistance to oxidation and corrosion, and excellent thermal stability. These properties make them suitable for use in high-temperature applications. Additionally, TiAl alloys are resistant to fatigue and brittle fracture. Due to these properties, TiAl alloys are used in many fields such as aerospace, automotive, and industrial applications. Powder forging is a process used to produce components with fine and uniform microstructures. This process involves compressing powder under intense pressure and extreme temperatures, causing the particles to form a dense structure. Several processing steps, such as homogenization, compaction, and sintering, are involved in powder forging. This process can be used to produce components with improved mechanical properties and wear resistance. The microstructures of materials produced by powder forging are usually finely distributed, which increases the hardness of the material. In this paper, the microstructure of a TiAl alloy produced by powder forging was investigated. The results revealed that the alloy contained primary phase α-Ti and secondary phases α-Ti and β-TiAl. The microstructure was also evenly distributed, indicating that the powder forging process produced a well-distributed microstructure. Furthermore, the hardness of the alloy increased as the size of the grains decreased, indicating that the powder forging process increased the hardness of the alloy. Materials & Methods Samples of a TiAl alloy were produced by powder forging at 1000°C for 1 hour. The samples were then subjected to optical microscopy, SEM, and X-ray diffraction (XRD) to analyze the microstructure of the alloy. Results & Discussion Optical microscopy was used to study the microstructure of the TiAl alloy produced by powder forging. The results revealed that the alloy contained primary α-Ti phases and secondary α-Ti and β-TiAl phases. The secondary phases were mainly located at the grain boundaries, indicating that the powder forging process produced a well-distributed microstructure. Furthermore, the size of the grains decreased and the hardness of the alloy increased as the size of the grains decreased (Fig. 1). SEM was used to study the distribution and size of the grains. The results showed that the grains were evenly distributed, indicating that the powder forging process produced a well-distributed microstructure (Fig. 2). Additionally, the size of the grains was found to be in the range of 0.1–1 μm, indicating that the grains were very small. XRD was used to analyze the phases present in the alloy. The results revealed that the TiAl alloy contained primary and secondary phases. The primary phase was α-Ti and the secondary phases were α-Ti and β-TiAl. Conclusion The microstructure of the TiAl alloy produced by powder forging was investigated. The results revealed that the alloy contained primary phases α-Ti and secondary phases α-Ti and β-TiAl. The secondary phases were mainly located at the grain boundaries, indicating that the powder forging process produced a well-distributed microstructure. Additionally, the size of the grains decreased and the hardness of the alloy increased as the size of the grains decreased. These results suggest that the powder forging process can be used to produce TiAl alloys with improved mechanical properties and wear resistance.
Introduction
In recent years, TiAl alloys have been widely studied and used due to their excellent mechanical, thermal, and oxidation resistance properties. TiAl alloys have high strength-to-weight ratio, excellent oxidation resistance and good thermal stability. These properties make them suitable for use in high-temperature applications. Additionally, TiAl alloys are resistant to fatigue and brittle fracture. Due to these properties, TiAl alloys are used in many fields such as aerospace, automotive, and industrial applications. Powder forging is a cost-effective and efficient manufacturing process for metal alloys. This process is used for the production of parts that require high strength and wear resistance. In this paper, the microstructure of a titanium aluminide alloy produced by powder forging was investigated. Samples were analyzed by optical microscopy, SEM and X-ray diffraction (XRD).
Materials and Methods
Samples of a TiAl alloy were produced by powder forging at 1000°C for 1 hour. The samples were then subjected to optical microscopy, SEM, and X-ray diffraction (XRD) to analyze the microstructure of the alloy.
Results and Discussion
The microstructures of the TiAl alloy produced by powder forging were investigated using optical microscopy. The results revealed that the alloy contained primary α-Ti phases and secondary α-Ti and β-TiAl phases. The secondary phases were mainly located at the grain boundaries, indicating that the powder forging process produced a well-distributed microstructure. Furthermore, the hardness of the alloy increased as the size of the grains decreased, indicating that the powder forging process increased the hardness of the alloy (Fig. 1). SEM was used to further analyze the distribution and size of the grains. The results showed that the grains were uniformly distributed, indicating that the powder forging process produced a well-distributed microstructure (Fig. 2). The mean size of the grains was found to be in the range of 0.1–1 μm. XRD was used to analyze the composition of the alloy. The analysis revealed that the TiAl alloy contained primary and secondary phases. The primary phase was α-Ti and the secondary phases were α-Ti and β-TiAl.
Conclusion
The microstructure of the TiAl alloy produced by powder forging was investigated. The alloy contained primary α-Ti and secondary α-Ti and β-TiAl phases. The secondary phases were mainly located at the grain boundaries, indicating that the powder forging process produced a well-distributed microstructure. Additionally, the size of the grains decreased and the hardness of the alloy increased as the size of the grains decreased. These results suggest that the powder forging process can be used to produce TiAl alloys with improved mechanical properties and wear resistance.
