4 documents found, page 1 of 1
Application of low Ms temperature consumable to dissimilar welded joint
Saraiva, Daniel Lucena; Béreš, Miloslav; Silva, Cleiton Carvalho; Nunes, Cristiana dos Santos; Silva, Jean Jefferson Moraes daThe welding of dissimilar joints is very common in systems used in oil exploration and production in deep sea waters. Commonly involves welding of low carbon steel pipes with low alloy steel forgings both with inner Inconel clad. The forged steel part undergoes a process of buttering with Inconel or carbon steel electrode before the weld of the joint. The buttering process is followed by a process of residual s...
Study of the austenite quantification by X-ray diffraction in the 18Ni-Co-Mo-Ti...
Pardal, Juan Manuel; Tavares, Sérgio Souto Maior; Fonseca, Maria da Penha Cindra; Abreu, Hamilton Ferreira Gomes de; Silva, Jean Jefferson Moraes daIn this paper, quantifications of the austenitic phase in a maraging 300 steel heat treated at different temperatures and periods of time were carried out using the direct comparison method by X-ray diffraction. The influence of taking into account the chemical compositions of austenite and martensite phases in the results by the direct comparison method was evaluated. In order to analyze the instability of aus...
An atomic redistribution study of the phase transformation kinetics of maraging...
Silva, Jean Jefferson Moraes daMaraging steels are a class of Fe-based alloying steels that are age-hardened by the precipitation of finely dispersed intermetallic compounds in a low-carbon martensitic matrix. The combination of appropriate mechanical and magnetic properties makes it a suitable material for strategic applications in the aeronautical, aerospace and nuclear industries. The main alloying elements in this steel are Ni, Co, Mo an...
Análise de textura e propriedades magnéticas em aços maraging 300 e 350 em vári...
Silva, Jean Jefferson Moraes daMaraging steels are Ni-Co-Mo-Ti ultra-high resistant steels used in special applications from military and nuclear applications to aircraft components, pressure vessels and sport equipment. Nowadays some investigations have being made in the application of these steels as high resistance magnetic materials. Maraging steels present some advantages when compared to other kinds of steels and alloys. They present e...