Mechanical properties of porous titanium alloy scaffold fabricated using additive manufacturing technology

2019 ◽  
Vol 59 (3) ◽  
pp. 1087-1095 ◽  
Author(s):  
Yu Xia ◽  
Chendong Feng ◽  
Yinze Xiong ◽  
Yun Luo ◽  
Xiang Li
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Additive Manufacturing ◽  
Porous Titanium ◽  
Manufacturing Technology ◽  
Additive Manufacturing Technology

scholarly journals Possibilities and limitations of titanium alloy additive manufacturing

2018 ◽  
Vol 224 ◽  
pp. 01064 ◽  
Author(s):  
Anton Agapovichev ◽  
Anton Sotov ◽  
Victoria Kokareva ◽  
Vitaly Smelov
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Additive Manufacturing ◽  
Literature Review ◽  
State Of The Art ◽  
Manufacturing Technology ◽  
The State ◽  
Aerospace Application ◽  
Additive Manufacturing Technology ◽  
Ti Alloys

This paper reviews the state-of-the-art of an important, rapidly emerging, additive manufacturing technology. Paper deals with the literature review of the Medical and Aerospace application of Additive Manufacturing from Ti alloys and its benefits and limitations. The study also demonstrate and compare the mechanical properties of Ti6Al4V samples produced by different technologies.

scholarly journals Metal Powder and Wire Additive Manufacturing Technology

2020 ◽  
Vol 213 ◽  
pp. 01020
Author(s):  
Yan Liu ◽  
Anna Du ◽  
Guishen Zhou ◽  
Jiapeng Liu
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Metal Powder ◽  
Manufacturing Technology ◽  
Broad Application ◽  
Additive Manufacturing Technology

Additive manufacturing technology can quickly manufacture parts with dense microstructures and excellent mechanical properties, so that it shows a broad application prospect in aerospace and other fields. Additive manufacturing technology was briefly introduced in this paper. On this basis, the technology and characteristics of metal powder and wire additive manufacturing were systematically analyzed and compared, and the development of additive manufacturing technology was prospected.

Microstructures and Properties of 304L Steel CAP1400 Fuel Bottom Nozzles Prepared by Additive Manufacturing Technology

2017 ◽  
Author(s):  
Li Zongshu ◽  
Liu Wentao ◽  
Yang Songtao ◽  
Hao Ruotong
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Fuel Assembly ◽  
Laser Power ◽  
Nuclear Power ◽  
Manufacturing Technology ◽  
Power Station ◽  
Laser Additive Manufacturing ◽  
Additive Manufacturing Technology ◽  
The Matrix

Nozzles of fuel assembly play an important role in pressure water reactor (PWR) fuel assembly element. For a long time, ordinary processing technologies of nozzles of fuel assembly have the problems of difficult and complicated process, the low availability of material and long the development cycles of manufacturing. However, according to the study these issues can be well settled by using the additive manufacturing technology. This paper studies a nozzle of fuel assembly prepared by this additive manufacturing technology through slow-strain-rate tension (SSRT) test and microstructure observation experiment. The results of SSRT test show that yield strength of the nozzle of fuel assembly is about 401.5MPa, the extensional rigidity is about 673.5MPa and the ductility is about 45.7%. And the SEM fracture results of the SSRT sample indicate that the fracture microstructure contains a large number of dimples, and the way of fracture belongs to plastic. And the metallographic observation consequences manifest that the microstructure of nozzle of fuel assembly prepared by the additive manufacturing technology is composite tissue of both austenite and ferrite, and the grains are settled along the way of laser scanning and there are isometric with some kind of direction. This metallographic microstructure is different from the traditional morphology of the free carbide distributed in the matrix. The dual phase microstructure of austenite and ferrite can improve the mechanical properties of the matrix effectively, and avoid the free carbides which may lead to matrix fragmentation in the tensile deformation process. Moreover, the laser power could affect the microstructure and properties of nozzles of fuel assembly observably, and the high laser power could bring about the ablation of metal. Through the analysis of mechanical properties and microstructure, we have made it possible to make the laser additive manufacturing technology to be used for the fuel assembly nozzle preparation in the nuclear power area. This work not only presents the advantages of the laser additive manufacturing technology in the fuel element processing area of the nuclear power station, but also broadens the application range of the laser additive manufacturing technology. What’s more we provide the new thoughts for the fast and effective preparation of the fuel element especially for the fuel assembly nozzle in the nuclear power station.

scholarly journals Sodium alginate/collagen composite multiscale porous scaffolds containing poly(ε-caprolactone) microspheres fabricated based on additive manufacturing technology

RSC Advances ◽  
2020 ◽  
Vol 10 (64) ◽  
pp. 39241-39250
Author(s):  
Shuifeng Liu ◽  
Da Huang ◽  
Yang Hu ◽  
Jiancheng Zhang ◽  
Bairui Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Additive Manufacturing ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Sodium Alginate ◽  
Drug Loading ◽  
Manufacturing Technology ◽  
Porous Scaffolds ◽  
Additive Manufacturing Technology

Biocompatible porous scaffolds with adjustable pore structures, appropriate mechanical properties and drug loading properties are important components of bone tissue engineering.

scholarly journals Additive manufacturing technology: laser material processing and functionally graded materials

2020 ◽  
pp. 164-164
Author(s):  
Esther Titilayo Akinlabi ◽  
Stephen Akinwale Akinlabi ◽  
Rasheedat Modupe Mahamood ◽  
Evgenii Valeryevich Murashkin
Keyword(s):  
Material Processing ◽  
Titanium Alloy ◽  
Additive Manufacturing ◽  
Functionally Graded Materials ◽  
Functionally Graded ◽  
Manufacturing Technology ◽  
Laser Material Processing ◽  
Graded Materials ◽  
Laser Material ◽  
Additive Manufacturing Technology

Professor Akinlabi’s research and her team has focused on the field of advanced and modern manufacturing processes like Laser Additive Manufacturing (AM), in particular laser material processing. Her other research work is focused on laser metal deposition and functionally graded materials of titanium-based alloys and other materials. Some of the studies she has been involved in focus on cladding titanium with titanium carbide for enhanced wear properties, the cladding of titanium alloy biological implants with hydroxyapatite (HAP) for improved osteo-integration, and the cladding of Grade 5 titanium alloy with copper for improved corrosion properties for marine applications. Akinlabi focuses her investigations on the development of advanced metallic coatings on Ti-6Al-4V substrate using additive manufacturing technology for improved surface performance; with targeted applications in the aerospace, automotive, and shipbuilding industries. This work makes a substantial contribution to knowledge by bringing the theoretical clarity and experimental studies required for the effective assessment of surface degradation mechanisms in additive manufactured Ti-6Al-4V alloy. This is ascribed to the elimination of high residual stresses and crack formation through the optimization of laser processing parameters, leading to enhanced quality of the coatings, surface adhesion between the substrate and the reinforcement materials, microstructural evolution and thus improved mechanical properties. Her research was developed to produce advanced innovative corrosion-wear resistant coatings with enhanced hardness, tribological property, and sustainable anti-corrosion performance thereby, consequently lengthening the lifespan and durability of titanium and its alloys, eliminating material loss and equipment damage, minimizing cost of maintenance, and reduced failure of this material. Despite all the benefits derived from AM technology, there are still a lot of unresolved issues with the technology that has hindered its performance and commercialisation thereby limiting its application to high tolerant utilizations. Professor Akinlabi research on additive manufacturing techniques had produced near-net-shape, light weight and high strength components which has gradually revolutionized the manufacturing sector. The use of the technology is now providing sustainable production benefits, as ability to repair and manufacture components can now be employed to increase product life circle. Against this background, the Additive Manufacturing technology is in itself referred to as a technology of the future despite its versatile applications in the industry. On the other hand, Functionally Graded Materials (FGMs) are advanced materials usually developed for specific and tailored applications. The FGMs also referred to as materials of the future as its applications are not yet fully explored for tailored applications. In this talk, Prof Akinlabi shared some of her research endeavours in the field of AM and FGMs, and also shared the scope on the primary objectives of the joint project which was to be undertaken on FGM of Titanium alloy and Titanium Carbide.

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