Effect of nitinol on mechanical properties of AA6061 metal matrix composite: A review

Saxena, Abhishek; Saxena, Kuldeep K.; Rajput, S.K.; Jain, Vivek; Pathak, B.N.

doi:10.1016/j.matpr.2021.12.075

Cited by 5 publications

(1 citation statement)

References 17 publications

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“…[202] Copyright 2008, Elsevier. Poisson's ratio 0.33 [241] Ultimate strength 895 MPa [241] Austenite yield stress 195-690 MPa [241] Martensite yield stress 70-140 MPa [241] Austenitic fatigue limit 480 MPa [15] Strain recovery 8-10% [242,243] Elongation at failure 14-20% [244,245] Melting point 1310 °C [242] Boiling point 2760 °C [246] Mass density 6.45 g cm À3 [244] Thermal conductivity 18 W m À1 °CÀ1 [242] Specific heat capacity 490 J kg À1 °CÀ1 [186] Rockwell hardness 89 R b [15] Magnetic material No [241] Absorptivity coefficient 0.32 [247] Latent heat 35 J g À1 [248] The fatigue life of a Nitinol specimen is highly dependent on the loading conditions of the specimen and the temperature at which the test is performed. Although Nitinol can withstand strains of 8-10%, the cyclic fatigue of that extreme loading will cause failures under 10 3 cycles.…”

Section: Materials Propertiesmentioning

confidence: 99%

Nickel–Titanium Alloy Laser Micromachining: A Review of Nitinol Laser Processes and Optimization for High‐Speed Laser Cutting

Otto,

Vaseghi,

Davami

2024

Adv Eng Mater

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The nickel‐titanium (NiTi) alloy, “Nitinol”, has become a prominent name in the medical device industry amongst medical device manufacturers. The unique properties of the material, such as the shape memory effect and pseudoelasticity, have earned the material increasing popularity for new product innovations. Amongst the various manufacturing processes for metal alloys, laser micromachining has taken the lead for processing Nitinol‐based products. This literature review provides an analysis of the history and applications of Nitinol, an overview of the microstructure of the material, and a review of the current manufacturing methods for laser cutting medical‐grade Nitinol. A more in‐depth focus is placed on the realm of laser processing and the challenges associated with the manufacturing process. Ultrafast femtosecond pulse processing delivers promising results and quality for manufacturing Nitinol medical devices. However, there exists a need to investigate potential approaches to increase the cutting speed of the process to enhance throughput and stay competitive in a growing market due to the cutting speed being over 4‐times slower than long pulse cutting. Many tactics to address the problem are discussed, ranging from laser selection, processing parameters, and non‐traditional laser processing approaches.This article is protected by copyright. All rights reserved.

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