Study on mechanical properties of Inconel 625 and Incoloy 800H with nitrate based molten salts

Hariharan Manikandan Kamatchi; Arul Anderson; Kannan Iyappan Suresh

doi:10.5937/zasmat2204477H

Autori

Hariharan Manikandan Kamatchi Sathyabama Institute of Science and Technology, School of Mechanical Engineering, Chennai, India + SRM Institute of Science and Technology, Department of Mechanical Engineering, Vadapalani Campus, Chennai, India Autor
Arul Anderson Sathyabama Institute of Science and Technology, School of Mechanical Engineering, Chennai, India Autor
Kannan Iyappan Suresh SRM Institute of Science and Technology, Department of Mechanical Engineering, Vadapalani Campus, Chennai, India Autor

DOI:

https://doi.org/10.5937/zasmat2204477H

Ključne reči:

Inconel 625, Incoloi 800H, itrij stabilizovan cirkonijum, natrijum nitrat, soli kaliijum nitrata, vruća korozija

Apstrakt

Skladištenje energije je najznačajnija tehnologija poslednjih dana sa povećanom potražnjom za energijom, koja pomaže u balansiranju potražnje za energijom i vremena proizvodnje. Među široko rasprostranjenim vrstama skladištenja energije, tehnologija rastopljenih soli u koncentrisanim solarnim postrojenjima je najekonomičnija, veoma efiikasna sa odličnim trajanjem u vremenskom periodu skladištenja. U ovom trenutnom pokušaju, Inconel 625 i Incoloi 800H super legure na bazi nikla su uzete i zagrejane sa rastopljenim solima natrijum nitrata i kalijum nitrata. Podloge od super legure su obložene cirkonijumom stabilizovanim itrijem kao premazom za termičku barijeru koji može poboljšati otpornost na toplotu i otpornost na koroziju osnovnih supstrata. I slojeviti i neobloženi uzorci super legure ili su intenzivni do prilično tačne temperature od 1000°C u različitom trajanju od 9, 12 i 15 sati. Mehanička svojstva i nezagrejanih i zagrejanih uzoraka upoređena su sa rezultatima dobijenim testom na zatezanje, ispitivanjem kompresije, testom tvrdoće i ispitivanjem udarca. Promene u mikrostrukturnim osobinama su ispitivane uz podršku SEM slika i KSRD analizom. Utvrđeno je da su mehanička svojstva uzoraka obloženih ISZ bolja od neobloženih; što povećava održivost super legura sa rastopljenim solima.

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