Variations in Tensile Behavior of a High-Strength Titanium Alloy Fabricated and Heat Treated in a Heavy Section

2009 ◽  
pp. 65-65-13
Author(s):  
RE Pasternak ◽  
R Chait
Keyword(s):  
Titanium Alloy ◽  
High Strength ◽  
Tensile Behavior ◽  
Heavy Section ◽  
Heat Treated

Fractographic Interpretation of Subcritical Cracking in a High Strength Titanium Alloy (IMI 550)

CORROSION ◽  
1973 ◽  
Vol 29 (11) ◽  
pp. 435-441 ◽  
Author(s):  
R.J. H. WANHILL
Keyword(s):  
Titanium Alloy ◽  
Liquid Metal ◽  
Subcritical Crack Growth ◽  
Salt Water ◽  
High Strength ◽  
Treated Condition ◽  
Heat Treated ◽  
Heat Treated Condition ◽  
Subcritical Fracture ◽  
Subcritical Cracking

Abstract A detailed fractographic study of subcritical crack growth in 3.5% aqueous NaCl and liquid mercury was made for IMI 550 (Ti-4AI-4Mo-2Sn-0.5Si) in an (α + β) heat treated condition. The work of Cox and Ajtchison, which showed that river markings are at high angles to genuine cleavage planes, is confirmed. Mechanisms for formation of the river markings are postulated, and a distinction is made between the cleavage topographies in salt water and mercury. Support is also found for the mechanism of liquid metal embrittlement postulated by Hancock and Ives. The overall appearance of the subcritical fracture surfaces provides an explanation for the low KISCC (salt water) customarily found for IMI 550.

ATI 6-4

Alloy Digest ◽  
2020 ◽  
Vol 69 (10) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Titanium Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Cryogenic Temperatures ◽  
Aged Condition ◽  
Annealed Condition ◽  
Heat Treated ◽  
Strength Alloy ◽  
Alpha Beta

Abstract ATI 6-4 is an alpha-beta, Ti-6Al-4V alloy that is used in the annealed condition, or in the solution heat treated and aged condition. This high-strength alloy can be used at cryogenic temperatures up to about 425 °C (800 °F). Ti-6Al-4V is the most widely used titanium alloy. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ti-171. Producer or source: ATI.

ZAPP TiAl6V4

Alloy Digest ◽  
2020 ◽  
Vol 69 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Titanium Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Aged Condition ◽  
Beta Titanium Alloy ◽  
Excellent Corrosion Resistance ◽  
Beta Titanium ◽  
Heat Treated ◽  
Low Weight

Abstract Zapp TiAl6V4 is an alpha-beta titanium alloy that is used in the annealed or solution heat treated and aged condition for applications requiring high strength, relatively low weight, and excellent corrosion resistance. It is typically used in the low to moderate temperature range (up to about 400 °C, or 750 °F). Ti-6Al-4V is the most widely used titanium alloy, accounting for more than 50% of the total titanium used. The aerospace industry accounts for more than 80% of this usage. 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: Ti-173. Producer or source: Zapp AG.

Effect of Test Temperature on Tensile Behavior of Ti-5Al-5V-2Mo-1Cr-1Fe (α+β) Titanium Alloy with Initial Microstructures in Hot Forged and Heat Treated Conditions

2019 ◽  
Vol 50 (6) ◽  
pp. 2702-2719 ◽  
Author(s):  
V. Anil Kumar ◽  
R. K. Gupta ◽  
V. S. K. Chakravadhanula ◽  
A. Gourav Rao ◽  
M. J. N. V. Prasad ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Test Temperature ◽  
Tensile Behavior ◽  
Heat Treated

Microstructures and Mechanical Properties of a New Type of High Temperature Titanium Alloy

2020 ◽  
Vol 993 ◽  
pp. 208-216
Author(s):  
Ya Peng Cui ◽  
Zi Yong Chen ◽  
Xiao Zhao Ma ◽  
Ying Ying Liu ◽  
Zhi Lei Xiang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
High Temperature ◽  
High Strength ◽  
Solution Temperature ◽  
Β Phase ◽  
Α Phase ◽  
Heat Treated ◽  
New Type ◽  
Microstructures And Mechanical Properties

The microstructures and mechanical properties of a new type near α high temperature titanium alloy Ti-6.5Al-2.5Sn-9Zr-0.5Mo-0.25Si-1Nb-1W-0.3Re (wt. %) (denoted as TA6.5) were investigated. It was observed that the microstructure of forged TA6.5 mainly consisted of deformed lamellar α phase, small amount of equiaxed α phase, and residual β phase, exhibiting high strength and comparatively low elongation. Three different heat treatments processes were performed on forged TA6.5. The results showed that all heat treated alloys displayed high tensile strengths, and the values of strength parameters were almost unchanged with the increasing solution temperature, ascribing to the combination effects of decreasing primary α phase and increasing contents and widths of secondary α phase and lamellas. The tensile elongations of heat treated alloys tested at 650 °C decreased slightly with the increasing solution temperature, which is due to the increased width of secondary α lamellas and the generation of coarse grain boundary α phase. TA6.5 treated in the process of 990 °C/1 h/AC+700 °C/4 h/AC exhibited excellent comprehensive mechanical properties, i.e. the ultimate tensile strength of 829 MPa, yield strength of 707 MPa and elongation of 18.73% respectively.

Microstructure of resistance spot welding of maraging steels

1990 ◽  
Vol 48 (4) ◽  
pp. 900-901
Author(s):  
I. Neuman ◽  
S.F. Dirnfeld ◽  
I. Minkoff
Keyword(s):  
Maraging Steel ◽  
Spot Welding ◽  
Lath Martensite ◽  
Base Material ◽  
Aging Treatment ◽  
High Strength ◽  
Maraging Steels ◽  
Heat Treated ◽  
Current Cycle ◽  
Welding Processes

Experimental work on the spot welding of Maraging Steels revealed a surprisingly low level of strength - both in the as welded and in aged conditions. This appeared unusual since in the welding of these materials by other welding processes (TIG,MIG) the strength level is almost that of the base material. The maraging steel C250 investigated had the composition: 18wt%Ni, 8wt%Co, 5wt%Mo and additions of Al and Ti. It has a nominal tensile strength of 250 KSI. The heat treated structure of maraging steel is lath martensite the final high strength is reached by aging treatment at 485°C for 3-4 hours. During the aging process precipitation takes place of Ni3Mo and Ni3Ti and an ordered solid solution containing Co is formed.Three types of spot welding cycles were investigated: multi-pulse current cycle, bi-pulse cycle and single pulsle cycle. TIG welded samples were also tested for comparison.The microstructure investigations were carried out by SEM and EDS as well as by fractography. For multicycle spot welded maraging C250 (without aging), the dendrites start from the fusion line towards the nugget centre with an epitaxial growth region of various widths, as seen in Figure 1.

UNS A03560

Alloy Digest ◽  
1986 ◽  
Vol 35 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Strength ◽  
Heat Treating ◽  
Casting Alloy ◽  
Aluminum Casting ◽  
Good Resistance ◽  
Aluminum Casting Alloy ◽  
Temperature Performance ◽  
Heat Treated

Abstract UNS No. A03560 is a heat-treatable aluminum casting alloy. Normally it is used only when heat-treated (aged) strengths are required. It is recommended for high-strength, pressure-tight castings, intricate shapes and where good resistance to corrosion is needed. Its many applications include crank cases, gear cases, oil pans, airframe fittings and instrument housings. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Al-274. Producer or source: Various aluminum companies.

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