Characteristics and Evolution Mechanism of Solidification Microstructure for Laser Additive Manufactured Ti2AlNb-Based Alloy

2018 ◽  
Vol 913 ◽  
pp. 118-125
Author(s):  
Yang Jie Tang ◽  
Yong Zhong Zhang ◽  
Yan Tao Liu ◽  
Wei Pan
Keyword(s):  
Crystal Structure ◽  
Tensile Properties ◽  
Solidification Process ◽  
High Strength ◽  
Solidification Microstructure ◽  
Columnar Dendrite ◽  
Solidification Velocity ◽  
Thin Wall ◽  
Dendrite Structure ◽  
Evolution Mechanism

Laser additive manufacturing (LAM) technology was applied to prepare Ti-22Al-25Nb alloy thin-wall sample. The characteristics and evolution mechanism of solidification microstructure were investigated, and the tensile properties at horizontal and vertical directions were discussed. The results indicated that the solidification microstructure in single deposition layer evolved as: plane crystal structure, cellular crystal structure, columnar dendrite structure and equiaxed dendrite structure, from the bottom to the top of the molten pool. During the solidification process, the temperature gradient and solidification velocity decided the grain growth morphology. However, the grain of the as-deposited materials grew up to thick equaxied structure when the upper layer was forming. The tensile properties at horizontal and vertical directions were not much different, both of these exhibited high strength and low ductility.

INCONEL ALLOY 725

Alloy Digest ◽  
1994 ◽  
Vol 43 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Heat Treating ◽  
Inconel Alloy ◽  
Alloy 625

Abstract INCONEL ALLOY 725 is an age-hardenable alloy that displays high strength along with excellent ductility and toughness. Its corrosion resistance is comparable to alloy 625. Good flattening properties are exhibited in age-hardened tubing. This datasheet provides information on composition, physical properties, hardness, tensile properties, and shear strength as well as fracture toughness. It also includes information on corrosion resistance as well as heat treating and machining. Filing Code: Ni-445. Producer or source: Inco Alloys International Inc.

PYROTOOL A

Alloy Digest ◽  
1971 ◽  
Vol 20 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
High Strength ◽  
Heat Treating ◽  
Good Ductility ◽  
Extrusion Dies ◽  
Temperature Performance

Abstract PYROTOOL A has been designed to display high strength and good ductility at temperatures up to 1200 F. It is used for high-temperature tooling, extrusion dies, liners, dummy blocks, forging dies, mandrels, holders, etc. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-47. Producer or source: Carpenter.

BERYLCO 25

Alloy Digest ◽  
1973 ◽  
Vol 22 (9) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Copper Alloy ◽  
High Performance ◽  
High Strength ◽  
Heat Treating ◽  
Beryllium Copper

Abstract BERYLCO 25 is the standard high-performance beryllium copper alloy most widely used because of its high strength, hardness and excellent spring characteristics. BERYLCO 25 is the updated version of BERYLCO 25S (Alloy Digest Cu-3, November 1952). This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-271. Producer or source: Kawecki Berylco Industries Inc..

NAVAL BRASS

Alloy Digest ◽  
1954 ◽  
Vol 3 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Heat Treating ◽  
Zinc Alloy ◽  
Copper Zinc

Abstract NAVAL BRASS is a copper-zinc alloy, containing 3/4% of tin, having high strength, toughness and resistance to corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-21. Producer or source: Brass mills.

ALCOA 6061 COLD FINISHED BAR

Alloy Digest ◽  
1998 ◽  
Vol 47 (6) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
High Resistance ◽  
High Strength ◽  
Wire Rod ◽  
Good Workability

Abstract Alcoa 6061 alloy has excellent joining characteristics and good acceptance of applied coatings. It combines relatively high strength, good workability, and high resistance to corrosion. The alloy is widely available. The T8 and T9 tempers offer better chipping characteristics than the T6 temper. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance as well as machining and surface treatment. Filing Code: AL-349. Producer or source: ALCOA Wire, Rod & Bar Division.

DELTALLOY 4032

Alloy Digest ◽  
1998 ◽  
Vol 47 (4) ◽  
Keyword(s):  
Wear Resistance ◽  
Thermal Expansion ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Surface Finish ◽  
Coefficient Of Thermal Expansion ◽  
Single Point ◽  
High Strength ◽  
Corrosion And Wear

Abstract Deltalloy 4032 has good machinability and drilling characteristics when using single-point or multispindle screw machines and an excellent surface finish using polycrystalline or carbide tooling. The alloy demonstrates superior wear resistance and may eliminate the need for hard coat anodizing. Deltalloy 4032 is characterized by high strength and a low coefficient of thermal expansion. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion and wear resistance as well as machining and surface treatment. Filing Code: AL-347. Producer or source: ALCOA Wire, Rod & Bar Division.

ALCOA 2024

Alloy Digest ◽  
1998 ◽  
Vol 47 (3) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Surface Finish ◽  
High Strength ◽  
Machined Surface ◽  
2024 Alloy ◽  
Structural Applications ◽  
Strength Material

Abstract Alcoa 2024 alloy has good machinability and machined surface finish capability, and is a high-strength material of adequate workability. It has largely superseded alloy 2017 (see Alloy Digest Al-58, August 1974) for structural applications. The alloy has comparable strength to some mild steels. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance as well as machining and surface treatment. Filing Code: AL-346. Producer or source: ALCOA Wire, Rod & Bar Division.

UDIMET 520

Alloy Digest ◽  
1962 ◽  
Vol 11 (9) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Elevated Temperatures ◽  
Base Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Nickel Base Alloy ◽  
Nickel Base

Abstract UDIMET 520 is a nickel-base alloy recommended for applications where high strength at elevated temperatures is required. It is suitable for service at temperatures up to 1800 F. This datasheet provides information on composition, physical properties, and tensile properties as well as creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-74. Producer or source: Special Metals Inc..

BRUSH WELLMAN Q-MAX

Alloy Digest ◽  
2006 ◽  
Vol 55 (1) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Copper Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Biological Resistance

Abstract Brush Wellman Q-Max tube is a high-strength age-hardening copper alloy with excellent biological resistance for use in waters as condenser tubing. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: CU-739. Producer or source: Brush Wellman Inc.

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