PENGARUH ELEMEN SEKUNDER DAN AGING TREATMENT TERHADAP SUPERELASTIC RECOVERY PADUAN MEMORI BENTUK FE NI CO : ULASAN KRITIS

• Main Author: Edgar Bratasena, Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/55989
• Institution: Institut Teknologi Bandung

Fe based alloy is a material that has various applications, such as in pipe canal construction, automotive spare parts, and as reinforcement material in reinforced concrete (RC) structures. Fe-based shape memory alloys (SMA) are currently being researched because of their low production cost and high seismic resistance property, thus it has potential to be used as reinforcement structure materials for earthquake-resistant construction. This special property is due to the ability of metal alloys to return to their original shape after loading above the yield point, collectively called superelasticity and thermoelasticity. Fe Ni Co SMA is an example of a shape memory alloy that has high superelastic recovery, reaching 13.5% in previous research studies. In this review report will study the effect of secondary element composition of alloys and the effect of aging treatment on the microstructure and superelastic recovery values specifically for Fe Ni Co based memory alloys. Several references and data related to the research topic were collected and analyzed on the parameters of secondary element composition and post-casting treatment. Other supporting data such as micro-structure cross sections, mechanical characteristics, and other test data were also collected as a comparison in analyzing each parameter. As a result, it was found that the addition of secondary elements has a significant effect on the superelastic recovery value and the microstructure of the alloy. Aging treatment is known to increase the size of the alloy precipitates, thus increasing the recovery ability according to the length of exposure time.