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Air and spacecraft
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Journal Articles
AM&P Technical Articles (2024) 182 (5): 24–28.
Published: 01 July 2024
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The evolution of carbon nanotube composites, as inspired by the Materials Genome Initiative, unlocks new potential for materials sustainability in challenging deep space applications. This article describes research and development work at the Institute for Ultra-Strong Composites by Computational Design (US-COMP), a NASA Space Technology Research Institute consortium. US-COMP has developed a novel composite material with mechanical properties per unit mass that exceed state-of-the-art structural composites.
Journal Articles
AM&P Technical Articles (2024) 182 (5): 21–23.
Published: 01 July 2024
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AM&P spoke with Brian Donahue of Canvus to learn how this manufacturer upcycles end-of-life wind turbine blades into furniture for communities, parks, and schools.
Journal Articles
AM&P Technical Articles (2024) 182 (2): 17–19.
Published: 01 March 2024
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The extreme high-speed laser application (EHLA) process offers efficient deposition of high-performance materials in aerospace manufacturing, providing key advantages compared to conventional laser cladding. As a sustainable alternative to chrome plating, EHLA excels in material integrity, efficiency, and performance, while reducing costs compared to thermal spray and conventional laser cladding. This article discusses how EHLA can help to address many sustainability concerns within the manufacturing sector.
Journal Articles
AM&P Technical Articles (2024) 182 (2): 24–28.
Published: 01 March 2024
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During the 20th century, the use of aluminum alloys helped the Allied Powers win World War II and made modern global air travel possible. Continuous improvements in engine technology, alloys, and manufacturing methods enabled the development of practical and efficient aircraft with varying passenger capacity and range capability. Conventional wrought aluminum alloys make up 70-80% of the weight of single-aisle airliners. Aluminum sheet, plate, forgings, extrusions, and castings all continue to be utilized in modern aircraft construction. This article explores a brief history of the special alloys, tempers, and product forms required to meet the unique challenges of flight.
Journal Articles
AM&P Technical Articles (2024) 182 (2): 12–16.
Published: 01 March 2024
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Several key materials processes and techniques positively impact weight reduction and reusability of parts designed for travel to the moon, Mars, and beyond. This article addresses how advances in technologies such as additive manufacturing, friction stir welding, and surface analysis, can help further enhance design and fabrication of space systems.
Journal Articles
AM&P Technical Articles (2023) 181 (7): 25–27.
Published: 01 October 2023
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NASA developed a novel oxide dispersion strengthened (ODS) NiCoCr-based alloy, GRX-810, that exhibits exceptional high temperature properties compared to conventional wrought superalloys for 3D printing applications. In this interview, the co-inventors, Tim Smith and Christopher Kantzos, discuss the alloy's unique development process and its superior high strength and durability for aerospace and other extreme conditions.
Journal Articles
AM&P Technical Articles (2022) 180 (2): 24–27.
Published: 01 March 2022
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Ahead of formal certification, many advanced metals have been qualified for 3D printing, allowing for the creation of previously impossible aerospace parts including for the hypersonic environment.
Journal Articles
AM&P Technical Articles (2021) 179 (7): 19–22.
Published: 01 October 2021
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High strength, corrosion-resistant Ferrium C64 is the culmination of a rigorous design process that bypassed extensive physical experimentation—delivering a carburizable steel with unmatched capability.
Journal Articles
AM&P Technical Articles (2021) 179 (3): 19–22.
Published: 01 April 2021
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The aerospace industry could benefit from recent progress in making near net shape titanium extrusions for applications beyond the long structural components of an aircraft.
Journal Articles
AM&P Technical Articles (2020) 178 (3): 22–25.
Published: 01 April 2020
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High-strength, corrosion-resistant steel is proposed as a cost-effective alternative to titanium alloys due to its high specific strength, high fatigue strength, good toughness, and corrosion resistance.
Journal Articles
AM&P Technical Articles (2020) 178 (3): 60–62.
Published: 01 April 2020
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With the goal of improving aircraft efficiency, Boeing in collaboration with NASA Glenn Research Center (GRC) have developed and successfully flight tested environmentally activated vortex generators that passively, repeatedly, and accurately retract during cruise and deploy during take-off and landing phases. The capability discussed in this article is based upon recent advancements in shape memory alloy rotary-actuation technology, which included improved alloy systems, design tools, best practices, published standards, and previous wind tunnel and flight test demonstrations.
Journal Articles
AM&P Technical Articles (2019) 177 (8): 38–40.
Published: 01 November 2019
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A joint research project has been initiated to develop surface treatments that comply with European Union REACH regulations, which address the production and use of chemical substances and their impact on human health and the environment. This article describes the roles of the partner organizations in the project.
Journal Articles
AM&P Technical Articles (2019) 177 (2): 22–26.
Published: 01 February 2019
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Molybdenum aluminum boride (MAB) phases have layered nanolaminate structures, suiting them for potential use in cutting tools, leading edges for hypersonic vehicles, high-temperature electrodes, and other demanding applications. This case study demonstrates a process for the production of MoAlB particulates and their incorporation in polymer-matrix composites.
Journal Articles
AM&P Technical Articles (2018) 176 (3): 18–24.
Published: 01 April 2018
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Among the structural materials developed in the 20th century, titanium and its alloys have played a leading role in improving component performance. This article discusses development of new production techniques, specifications, economic aspects, and applications that have enabled the current applications of titanium alloys.
Journal Articles
AM&P Technical Articles (2018) 176 (2): 58–61.
Published: 01 February 2018
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Induction heating is used to produce high quality, reliable aerospace components as well as unique combinations of engineering characteristics.
Journal Articles
AM&P Technical Articles (2018) 176 (2): 63–64.
Published: 01 February 2018
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Stringent pressure control and gas species type both play an important role in minimizing the evaporation rate of not only copper, but other elements susceptible to evaporation in vacuum systems. The article describes a study investigating the effect of temperature, pressure, and carrier gas species on the amount of copper evaporation that occurs from copper foil test samples in low pressure carburizing.
Journal Articles
AM&P Technical Articles (2018) 176 (2): 16–18.
Published: 01 February 2018
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The Spanwise Adaptive Wing project intends to obtain a wide spectrum of aerodynamic benefits in flight by folding wings through the use of an innovative and lightweight shape memory alloy.
Journal Articles
AM&P Technical Articles (2018) 176 (2): 19–25.
Published: 01 February 2018
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Among the structural materials developed in the 20th century, titanium and its alloys have played a leading role in improving component performance. This article provides background on the extraction and primary processing of titanium.
Journal Articles
AM&P Technical Articles (2017) 175 (7): 25–29.
Published: 01 October 2017
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Nanobrazing is an innovative brazing technique that uses nanomaterials as the filler materials. Incorporating nanobrazing into conventional technologies such as vacuum and laser brazing creates a new frontier for repairing turbine blades and vanes. Due to the unique “nanopowdering” of filler materials, the metallurgical mechanisms and thermodynamics of nanobrazing show promise for innovative applications.
Journal Articles
AM&P Technical Articles (2017) 175 (6): 72–80.
Published: 01 September 2017
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Modern, high quality induction heat treating equipment must be readily available and flexible enough to allow for easy retooling and reprogramming to process a variety of parts. This article focuses on the technical revolution taking place in induction heating, which for the first time enables preprogramming of induction equipment to change frequency and power during the heating cycle in the same manner manner as machinists have been programming CNC machines for years. This is illustrated through a case study of induction hardening a shaft-like component.
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