Mechanical Conditioning of Superelastic Nitinol Wire for Improved Fatigue Resistance

An interest in NiTi alloys with near stoichiometric composition (55 NiTi) has intensified since they were found to exhibit a unique mechanical shape memory effect at the Naval Ordnance Laboratory some twelve years ago (thus refered to as NITINOL alloys). Since then, the microstructural mechanisms associated with the shape memory effect have been investigated and several interesting engineering applications have appeared.The shape memory effect implies that the alloy deformed from an initial shape will spontaneously return to that initial state upon heating. This behavior is reported to be related to a diffusionless shear transformation which takes place between similar but slightly different CsCl type structures.

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Methods and specimens for comparative investigations of fatigue resistance of parts with multilayer surfacing

Avtomatičeskaâ svarka (Kiev) ◽

10.15407/as2019.02.05 ◽

2019 ◽

Vol 2019 (2) ◽

pp. 36-42

Author(s):

I.A. Ryabtsev ◽

◽

V.V. Knysh ◽

A.A. Babinets ◽

S.A. Solovej ◽

...

Keyword(s):

Fatigue Resistance

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Fatigue resistance of steel welded joints of different strength with steady residual stresses

Avtomatičeskaâ svarka (Kiev) ◽

10.15407/as2018.03.03 ◽

2018 ◽

Vol 2018 (3) ◽

pp. 18-22

Author(s):

V.A. Degtyarev ◽

Keyword(s):

Residual Stresses ◽

Fatigue Resistance ◽

Welded Joints

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Advancing tissue-engineered vascular grafts via their endothelialization and mechanical conditioning

The Journal of Cardiovascular Surgery ◽

10.23736/s0021-9509.20.11582-9 ◽

2020 ◽

Vol 61 (5) ◽

Author(s):

Jeremy A. Antonyshyn ◽

Katya A. D'''''Costa ◽

J. Paul Santerre

Keyword(s):

Vascular Grafts ◽

Mechanical Conditioning

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HAYNES ALLOY No. 625SQ

Alloy Digest ◽

10.31399/asm.ad.ni0612 ◽

2003 ◽

Vol 52 (8) ◽

Keyword(s):

Grain Size ◽

High Temperature ◽

Physical Properties ◽

Tensile Properties ◽

Fatigue Resistance ◽

Heat Treating ◽

Temperature Performance ◽

Haynes Alloy

Abstract Haynes 625SQ alloy is a modification of Haynes 625 alloy (see Alloy Digest Ni-354, January 1988) with tighter controls on chemistry and a finer grain size for fatigue resistance up to 680 deg C (1250 deg F). This datasheet provides information on composition, physical properties, microstructure, elasticity, and tensile properties as well as fatigue. It also includes information on high temperature performance as well as heat treating. Filing Code: Ni-612. Producer or source: Haynes International Inc.

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THERMO-SPAN ALLOY

Alloy Digest ◽

10.31399/asm.ad.fe0105 ◽

1994 ◽

Vol 43 (2) ◽

Keyword(s):

Physical Properties ◽

Tensile Properties ◽

Fatigue Resistance ◽

Thermal Fatigue ◽

Rupture Strength ◽

Stress Rupture ◽

Heat Treating ◽

Thermal Fatigue Resistance ◽

Stress Rupture Strength

Abstract THERMO-SPAN ALLOY is a precipitation-hardenable superalloy with a low coefficient of expansion combined with tensile and stress-rupture strength. Thermal fatigue resistance is inherent. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on forming and heat treating. Filing Code: FE-105. Producer or source: Carpenter.

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ALCOA 2026

Alloy Digest ◽

10.31399/asm.ad.al0401 ◽

2006 ◽

Vol 55 (10) ◽

Keyword(s):

Compressive Strength ◽

Corrosion Resistance ◽

Tensile Properties ◽

Fatigue Resistance ◽

Selection Criteria ◽

Damage Tolerance ◽

Structural Applications ◽

Extrusion Alloy ◽

High Degree

Abstract Alcoa extrusion alloy 2026 was developed as an improvement over 2024 and 2224 extrusions in aerospace structural applications where the governing selection criteria are high damage tolerance, good fatigue resistance, and a high degree of manufacturability. In addition to improved damage tolerance, extrusion alloy 2026-T3511 also has a significantly higher A-basis minimum strength than 2024-T3511 and 2224-T3511. This datasheet provides information on composition, tensile properties, and compressive strength as well as fatigue. It also includes information on corrosion resistance as well as forming. Filing Code: AL-401. Producer or source: AEAP-Alcoa Engineered Aerospace Products.

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CYCLOPS N9

Alloy Digest ◽

10.31399/asm.ad.ts0071 ◽

1958 ◽

Vol 7 (6) ◽

Keyword(s):

Fracture Toughness ◽

Physical Properties ◽

Tensile Properties ◽

Fatigue Resistance ◽

Heat Treating ◽

High Toughness

Abstract CYCLOPS N-9 is a chromium-nickel oil hardening steel with high toughness and fatigue resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-71. Producer or source: Cyclops Corporation.

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