scholarly journals Development of α - β type titanium alloy Ti-4.5Al-2.5Cr-1.2Fe-0.1C-0.3Cu-0.3Ni having good forgeability and machinability

2020 ◽  
Vol 321 ◽  
pp. 11073
Author(s):  
Takashi KONNO ◽  
Keitaro TAMURA ◽  
Yoshio ITSUMI ◽  
Kohei YOKOCHI ◽  
Koichi AKAZAWA ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Tensile Properties ◽  
Tool Life ◽  
Hot Deformation ◽  
Room Temperature ◽  
The Other ◽  
Total Cost ◽  
Alloy Addition ◽  
Alpha Beta ◽  
Deformation Stress

Development of a titanium alloy having excellent hot forgeability and machinability while having the same properties as Ti-64 alloy is effective in reducing the total cost of titanium parts. To develop a new alpha-beta type titanium alloy which has good hot forgeability, machinability and tensile properties equivalent to those of Ti-64 alloy at room temperature, Ti-4.5Al-2.5Cr-1.2Fe-0.1C-nCu-nNi (n=0 to 2) were prepared and evaluated. The new alloy showed tensile properties equivalent to that of Ti-64 alloy at room temperature. On the other hand, the hot deformation stress of new alloy was about 30% lower than that of Ti-64 alloy, and the excellent deformability was confirmed. The addition of Cu and Ni to Ti-4.5Al-2.5Cr-1.2Fe-0.1C alloy suppressed the amount of wear of tool and improved the machinability. Tool life of new alloy machining is extended by about 1.5 times compared to that of Ti-64 alloy. Addition of Cu and Ni is considered to reduce the reactivity between tool and workpiece and improve machinability.

ALLVAC 6Al-6V-2Sn

Alloy Digest ◽  
1991 ◽  
Vol 40 (8) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Stabilizing Effect ◽  
Alpha Beta

Abstract ALLVAC 6A1-6V-2Sn is a highly beta stabilized alpha + beta titanium alloy, a modification of the 6 A1-4V system. Added vanadium plus copper and iron produce the stabilizing effect. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ti-98. Producer or source: Teledyne Allvac.

Influence of Isothermal Forging Temperature on Microstructure and Tensile Properties of Ti-5.8Al-4.0Sn-4.0Zr-0.7Nb-0.4Si-1.5Ta Near-α Titanium Alloy

2010 ◽  
Vol 97-101 ◽  
pp. 153-157
Author(s):  
Tao Wang ◽  
Hong Zhen Guo ◽  
Jian Hua Zhang ◽  
Ze Kun Yao
Keyword(s):  
Grain Size ◽  
Tensile Strength ◽  
Titanium Alloy ◽  
Tensile Properties ◽  
Room Temperature ◽  
Volume Fraction ◽  
Constant Strain Rate ◽  
Isothermal Forging ◽  
Α Phase ◽  
Transus Temperature

The microstructures and room temperature and 600°C tensile properties of Ti-5.8Al-4.0Sn-4.0Zr-0.7Nb -0.4Si-1.5Ta alloy after isothermal forging have been studied. The forging temperature range was from 850°C to 1075°C, and the constant strain rate of 8×10-3/S-1 was adopted. With the increase of forging temperature, the volume fraction of primary α phase decreased and the lamellar α phase became thicker when the temperatures were in range of 850°C -1040°C; The grain size became uneven and the α phase had different forms when the forging temperature was 1040°C and 1075°C respectively; The tensile strength was not sensitive to the temperature and the most difference was within 20MPa. Tensile strength and yield strength attained to the maximum when temperature was 1020°C; the ductility decreased with the increase of forging temperature, and this trend became more obvious if forging temperature was above the β-transus temperature.

Tensile properties of a newly developed high-temperature titanium alloy at room temperature and 650 °C

2018 ◽  
Vol 718 ◽  
pp. 287-291 ◽  
Author(s):  
P.L. Narayana ◽  
Seong-Woong Kim ◽  
Jae-Keun Hong ◽  
N.S. Reddy ◽  
Jong-Taek Yeom
Keyword(s):  
Titanium Alloy ◽  
High Temperature ◽  
Tensile Properties ◽  
Room Temperature

Effect of Sodium Exposure On the Mechanical Properties of Zirconium

CORROSION ◽  
1961 ◽  
Vol 17 (1) ◽  
pp. 31t-34t ◽  
Author(s):  
J. C. BOKROS
Keyword(s):  
Mechanical Properties ◽  
Fatigue Life ◽  
Tensile Properties ◽  
High Temperatures ◽  
Low Temperatures ◽  
Hydrogen Absorption ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Surface Oxide ◽  
The Other

Abstract It was found that surface oxide which developed on zirconium in impure sodium significantly lowered the fatigue life at elevated temperatures. Hydrogen absorption, on the other hand, had little effect on the fatigue life at elevated temperatures but lowered the fatigue life at room temperature. Also, critical recrystallization which occurred above 950 F in zirconium (a phenomenon unrelated to the presence of sodium) reduced the fatigue life at elevated as well as low temperatures. The effects attributable to sodium (i.e., the formation of surface oxide and absorption of reasonable amounts of hydrogen), did not significantly alter the tensile properties of zirconium at high temperatures. 6.3.20, 4.7, 3.5.8, 3.2.3

SANDVIK BIOLINE Ti6Al4V ELI

Alloy Digest ◽  
2014 ◽  
Vol 63 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Titanium Alloy ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Purity ◽  
Beta Titanium Alloy ◽  
Medical Implant ◽  
Beta Titanium ◽  
Alpha Beta

Abstract Sandvik Bioline Ti6Al4V ELI is an alpha-beta titanium alloy used mainly for medical implant applications. It is an extra low interstitial alloy with a high purity, which confers improved ductility and fracture toughness. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on forming and machining. Filing Code: Ti-157. Producer or source: Sandvik Materials Technology.

HARVEY HA 5158

Alloy Digest ◽  
1969 ◽  
Vol 18 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Elevated Temperature ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Heat Treating ◽  
Aluminum Company ◽  
Alpha Beta

Abstract HARVEY HA 5158 is an alpha-beta, heat treatable titanium alloy recommended for elevated temperature applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ti-57. Producer or source: Harvey Aluminum Company.

Effect of Heat Treatments on Mechanical Properties and Fatigue Resistance of Ti-35Nb Alloy Used as Biomaterial

2010 ◽  
Vol 636-637 ◽  
pp. 68-75 ◽  
Author(s):  
Alessandra Cremasco ◽  
Itamar Ferreira ◽  
R. Caram
Keyword(s):  
Titanium Alloy ◽  
Fatigue Resistance ◽  
Room Temperature ◽  
The Other ◽  
Fatigue Properties ◽  
Metallic Materials ◽  
Rapid Cooling ◽  
Materials Used ◽  
Orthopedic Applications ◽  
35Nb Alloy

Titanium alloys form the most versatile class of metallic materials used as biomaterials. Among them it is foreseen that the  type titanium alloy will be a prominent one for orthopedic applications. Aim of the present work was to prepare and characterize a  type titanium alloy containing 35 wt.% Nb. Samples were cooled from the  phase temperatures at different rates. This work includes the effects of heat treatment on the microstructure and hardness, tensile and fatigue properties in air at room temperature. The results showed that microstructure of slow cooled samples are formed by precipitates of  and  phases in a  matrix. After rapid cooling, the microstructure consists of  phase and ” martensite. Mechanical testing showed that the elastic modulus and Vickers hardness of slow cooled samples were significantly higher than that obtained by rapid cooling. On the other hand, it was observed that slow cooled samples showed higher tensile strength and lower ductility. The rapid cooled sample showed fatigue resistance higher than that of slow cooled samples.

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