Cracking Tendency
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Microstructural Characterization of a Laser Surface Remelted Cu-Based Shape Memory Alloy
Cu-based shape memory alloys (SMAs) present some advantages as higher transformation temperatures, lower costs and are easier to process than traditional Ti-based SMAs but they also show some disadvantages as low ductility and higher tendency for intergranular cracking. Several studies have sought for a way to improve the mechanical properties of these alloy
Mat. Res.. Publicado em: 12/04/2018
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2. Occurrence of Defects in Laser Beam Welded Al-Cu-Li Sheets with T-Joint Configuration
Abstract: In the aerospace industry, laser beam welding has been considered as one of the most promising routes among the new manufacturing processes. Substitution of riveting by laser beam welding of aircraft structures has contributed to weight and cost savings. Concurrently, new aluminum alloys have been developed with the addition of lithium with better
J. Aerosp. Technol. Manag.. Publicado em: 2012-12
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3. Influência do consumo de água, do teor de adição de microfibras de polipropileno, e do tipo de cimento no fenômeno da retração por secagem em concretos empregados em pisos / Influence of water consumption, the addition content of polypropylene staple fibers and the kind of cement in the volumetric changes of concretes used in floors
Mudanças volumétricas presentes na matriz cimentícia, oriundas dos processos de hidratação e de secagem do compósito cimentício, geram uma tendência de fissuração no material. Em pisos de concreto, a presença de tal manifestação patológica, decorrente do fenômeno da retração por secagem, é extremamente preocupante. Desta forma, a realizaç�
Publicado em: 2010
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4. Aplicação de termogravimetria acoplada à espectrometria de massas para caracterização de petróleo e determinação da curva de evolução de gás sulfídrico
With the new discoveries of oil and gas, the exploration of fields in various geological basins, imports of other oils and the development of alternative fuels, more and more research labs have evaluated and characterized new types of petroleum and derivatives. Therefore the investment in new techniques and equipment in the samples analysis to determine thei
Publicado em: 2009
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5. Influência do tamanho de grão austenítico na resistência à corrosão sob tensão de aços para aplicação sour service
In this work, was studied the influence of prior austenite grain size on the susceptibility of some steels on sulfide stress corrosion cracking in sour environments with high H2S content. The base of the work will be two steels with a range of carbon equal a 0,24 and 0,34% containing chromium, molybdenum, vanadium, niobium and titanium. It was varied the hea
Publicado em: 2007