Microstructural characterization and mechanical behavior of an AgA1NbTiZn complex composition alloy produced using powder metallurgy (P/M)

Autor(es)

Rodrigues, Joao Felipe Q. ^[1] ; Costa, Diego ^[2] ; Contieri, Rodrigo J. ^[1] ; Osorio, Wislei R. ^{[2, 1]} ; Bortolozo, Ausdinir D. ^{[2, 1]}

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, UNICAMP, Res Grp Mfg Adv Mat CPMMA, Sch Appl Sci FCA, Campus Limeira, 1300, Pedro Zaccaria St, BR-13484350 Limeira, SP - Brazil

^[2] Univ Estadual Campinas, UNICAMP, Sch Technol, BR-13484332 Limeira, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING; v. 744, p. 305-315, JAN 28 2019.
• Citações Web of Science: 0

Resumo

This investigation is focused on a complex composition AgAITiNbZn alloy manufactured by using the powder metallurgy (P/M) route. Four distinctive heat-treating temperatures are used (i.e. 580, 750, 850, 1000 degrees C). X-ray diffraction (XRD) and scanning electron microscopy (SEM) are used in order to characterize the resulting microstructural array obtained. Although, theoretical thermodynamic parameters from literature are used, a solid solution is not constituted. It is found that the TiAl intermetallics are neighboring the dispersed Nb particles. Besides, they are also embedded into an AgZn matrix. The examined AgA1NbTiZn alloy constitutes a complex multicomponent alloy (CCA). Its compressive strength is increased up to a heat-treating at 750 degrees C and decreased when at 850 and 1000 degrees C is carried out. A controlling of the second phase permits to preprogram the resulting mechanical strength of the alloy/composite examined. (AU)

• Processo FAPESP: 13/12729-5 - Influência da sinterização por micro-ondas em compostos nanolamidados supercondutores pertencentes à família MAX
• Beneficiário: Ausdinir Danilo Bortolozo
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 16/13352-0 - Influência do aquecimento por micro-ondas na correlação microestrutura-propriedades dos compostos pertencentes a família MAX.
• Beneficiário: Ausdinir Danilo Bortolozo
• Modalidade de apoio: Auxílio à Pesquisa - Regular