Sharar.Additionally, it covers important aspects of industry like market size, share, trends, and key drivers with SWOT and PESTLE analysis. Alaa Elwany industrial systems and engineering student Chen Zhang and U.S. Abhinav Srivastava and current student Nathan Hite Wm Michael Barnes '64 Department of Industrial Systems and Engineering professor Dr. Raymundo Arroyave former materials science and engineering student Dr. Ibrahim Karaman materials science and engineering professors Dr. Other contributors to the publication include materials science and engineering department head Dr. Army Research Laboratory, the National Priorities Research Program grant, the Qatar National Research Fund and the U.S. "If we can tailor the crystallographic texture and microstructure, there are far more applications these shape memory alloys can be used in." "This study can serve as a guide on how to print nickel-titanium shape memory alloys with desired mechanical and functional characteristics," said Xue. In the future, the researchers hope their discoveries will lead to increased use of printed nickel-titanium shape memory alloys in biomedical and aerospace applications. Using 3D printing to develop these superior materials will reduce the cost and time of the manufacturing process. The ability to produce shape memory alloys through 3D printing with increased superelasticity means the materials are more capable of handling applied deformation. This level of superelasticity is nearly double the amount previously seen in literature for 3D printing. With this framework, as well as the change in composition and refined process parameters, the researchers fabricated nickel-titanium parts that consistently exhibited a room temperature tensile superelasticity of 6% in the as-printed condition (without post-fabrication heat treatment). To combat this issue, the researchers used an optimization framework they created in a previous study, which can determine optimal process parameters to achieve defect-free structure and specific material properties. In addition, the laser can change the composition of the material due to evaporation during printing. Unfortunately, most nickel-titanium materials cannot withstand the current laser powder bed fusion process, often resulting in printing defects such as porosity, warping or delamination caused by large thermal gradient and brittleness from oxidation. "We repeat this layering, scanning the same or different patterns until the desired structure is formed." "Using a 3D printer, we spread the alloy powder over a substrate and then use the laser to melt the powder, forming one full layer," said Xue. The layer-by-layer process is beneficial because it can create parts with complex geometries that would be impossible in traditional manufacturing. This technique, similar to polymer 3D printing, uses a laser to fuse metal or alloy powders layer by layer. Laser powder bed fusion is an additive manufacturing technique that presents a way to produce nickel-titanium shape memory alloys effectively and efficiently, offering a pathway to quick manufacturing or prototyping. "Although they can be utilized in many ways, fabricating shape memory alloys into complex shapes requires fine-tuning to ensure the material exhibits the desired properties." Lei Xue, a former doctoral student in the Department of Materials Science and Engineering and the first author of the publication. "Shape memory alloys are smart materials that can remember their high-temperature shapes," said Dr. However, developing and properly fabricating these materials requires extensive research to characterize functional properties and examine the microstructure. Therefore, they can be used in biomedical and aerospace fields for stents, implants, surgical devices and aircraft wings. Nickel-titanium shape memory alloys have various applications due to their ability to return to their original shape upon heating or upon removal of the applied stress. This study was recently published in vol. Researchers from Texas A&M University recently showcased superior tensile superelasticity by fabricating a shape memory alloy through laser powder bed fusion, nearly doubling the maximum superelasticity reported in literature for 3D printing.
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