The role of laser in manufacturing of shape memory alloy (sma)

Shape Memory Alloys are widely used smart materials in recent times for various applications from aerospace to biomedical field. Shape Memory Alloy (SMA) is made of mixture of different metal powders (Ni-Ti with 50 - 50 Wt% (approximate) can give Nitinol) and/or by using filler metals. However, fusi...

Full description

Saved in:

Bibliographic Details
Published in:	IOP conference series. Materials Science and Engineering 2020-08, Vol.912 (3), p.32008
Main Authors:	Karpagaraj, A, Ramesh, R, Arun Selva Kumar, T, Rajesh Kumar, N
Format:	Article
Language:	eng
Subjects:	Alloys Biomedical materials Laser beam cladding Laser beam melting Laser sintering Lasers Metal powders Nickel titanides Powder metallurgy Production methods Rapid prototyping Shape memory alloys Sintering (powder metallurgy) Smart materials Titanium
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Shape Memory Alloys are widely used smart materials in recent times for various applications from aerospace to biomedical field. Shape Memory Alloy (SMA) is made of mixture of different metal powders (Ni-Ti with 50 - 50 Wt% (approximate) can give Nitinol) and/or by using filler metals. However, fusing the selected powder mixture and making as SMA is a challenging task. Researchers used various techniques for making SMA which can be classifed into two major categories likely casting method and powder metallurgy method. Laser power to make SMA is widely used by most of the researchers. These processes are further classified by conventional and non-conventional methods. Under this method various classification like Direct Laser Melting, Selective Laser Melting, Laser Sintering and Laser Cladding are available. In this article, the above-mentioned production methods using laser as major source are studied carefully. The advantages and limitations are also discussed on justifying the suitability of processing SMA by lasers. Along with their limitations the influence of each parameter is focused. Finally, a conclusion is made based on this detailed study.
ISSN:	1757-8981 1757-899X