Utjecaj mikrolegirajućih elemenata na svojstva legura s prisjetljivosti oblika

undergraduate thesis

• Title (english): The influence of microalloying elements on shape memory alloys properties
• Author: Iva Rajić
• Mentor: Ivana Ivanić (mentor)
• Committee member: Mirko Gojić (predsjednik povjerenstva)
• Committee member: Ivana Ivanić (član povjerenstva)
• Committee member: Stjepan Kožuh (član povjerenstva)
• Granter: University of Zagreb; Faculty of Metallurgy; Sisak
• Defense date and country: 2021-09-20, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Metallurgy

Abstract

Legure s prisjetljivosti oblika (SMA) karakteriziraju specifična i jedinstvena svojstva, efekt prisjetljivosti oblika, pseudoelastičnost te superelastičnost. Efekt prisjetljivosti oblika predstavlja sposobnost legure da se vraća u svoj prvobitni oblik pod utjecajem temperaturnih ili mehaničkih naprezanja. Do efekta dolazi zbog fazne transformacije između austenita i martenzita. Danas postoji velik broj legura s prisjetljivosti oblika, a najvažnije su na bazi nikla, bakra i željeza. U svrhu poboljšanja primarne legure dodavaju joj se mikrolegirajući elementi. Utjecaj mikrolegirajućih elemenata na svojstva legura s prisjetljivosti oblika je različit s obzirom na vrstu legure. Dodatak mikrolegirajućih elemenata ima značajan utjecaj na proizvodnju, morfologiju, strukturu te svojstva metala.

Abstract (english)

Shape memory alloys (SMA) are characterized by specific and unique properties, shape memory effect, pseudoelasticity and superelasticity. The shape memory effect is alloys ability to return to its original shape under the influence of temperature or mechanical stresses. The effect is due to the phase transformation between austenite and martensite. Today, there are a large number of alloys with shape memory effect and the most important are based on nickel, copper, and iron. In order to improve the primary alloy, microalloying elements are added to it. The influence of microalloying elements on the properties of shape memory alloys is different depending on the type of the alloy. The addition of micro alloying elements has a significant impact on the production, morphology, structure and alloys properties.

• Keywords: legure s prisjetljivosti oblika; mikrolegirajući elementi; martenzitna transformacija; efekt prisjetljivosti oblika
• Keywords (english): shape memory alloys; microalloying elements; martensitic transformation; shape memory effect
• Language: croatian
• URN:NBN: urn:nbn:hr:115:635063
• Study programme: Title: Undergraduate study program Metallurgy; specializations in: Metallurgical Engineering, Industrial Ecology; Course: Metallurgical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka metalurgije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka metalurgije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-10-05 08:45:17