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Comparison of 9Ni--4Co--0.20C Steel and Titanium Alloy Properties for Weight-Critical Structural Applications.

SAND758301

Publication Date	1976
Personal Author	Dawson, D. B.
Page Count	52
Abstract	Titanium alloys are attractive in weight-critical applications requiring high strength, due to their high strength-to-density ratios when compared with steel and aluminum alloys. The mechanical properties of titanium alloys such as Ti--6Al--4V, Ti--6Al--6V--2Sn, Ti--6Al--2Sn--4Zr--6Mo, and several beta alloys are discussed and compared with 9Ni--4Co--0.20C steel. Data is presented for strength, fracture toughness, fatigue properties, stress corrosion cracking behavior, and corrosion resistance. The trade-off in strength vs. toughness, SCC resistance, and weldability of titanium alloys is discussed. Recommendations of specific titanium alloy systems for various required strength levels are made on the basis of these factors.
Keywords	Titanium base alloys Mechanical properties Aluminium alloys Vanadium Tin alloys Cobalt additions Corrosion resistance Nickel steels Molybdenum alloys Zirconium alloys Titanium alloy 6Al 4V Titanium alloy 6Al 2Sn 6V Titanium alloy 6Al 6Mo 2Sn 4Zn Steel 4Co 9Ni
Source Agency	US Energy Research and Development Administration
NTIS Subject Category	71N - Nonferrous Metals & Alloys
Corporate Authors	Sandia Labs., Livermore, Calif.
Document Type	Technical Report
NTIS Issue Number	197613
Contract Number	AT(29-1)-789

Comparison of 9Ni--4Co--0.20C Steel and Titanium Alloy Properties for Weight-Critical Structural Applications.

Comparison of 9Ni--4Co--0.20C Steel and Titanium Alloy Properties for Weight-Critical Structural Applications.
SAND758301

Publication Date	1976
Personal Author	Dawson, D. B.
Page Count	52
Abstract	Titanium alloys are attractive in weight-critical applications requiring high strength, due to their high strength-to-density ratios when compared with steel and aluminum alloys. The mechanical properties of titanium alloys such as Ti--6Al--4V, Ti--6Al--6V--2Sn, Ti--6Al--2Sn--4Zr--6Mo, and several beta alloys are discussed and compared with 9Ni--4Co--0.20C steel. Data is presented for strength, fracture toughness, fatigue properties, stress corrosion cracking behavior, and corrosion resistance. The trade-off in strength vs. toughness, SCC resistance, and weldability of titanium alloys is discussed. Recommendations of specific titanium alloy systems for various required strength levels are made on the basis of these factors.
Keywords	Titanium base alloys Mechanical properties Aluminium alloys Vanadium Tin alloys Cobalt additions Corrosion resistance Nickel steels Molybdenum alloys Zirconium alloys Titanium alloy 6Al 4V Titanium alloy 6Al 2Sn 6V Titanium alloy 6Al 6Mo 2Sn 4Zn Steel 4Co 9Ni
Source Agency	US Energy Research and Development Administration
NTIS Subject Category	71N - Nonferrous Metals & Alloys
Corporate Authors	Sandia Labs., Livermore, Calif.
Document Type	Technical Report
NTIS Issue Number	197613
Contract Number	AT(29-1)-789