Povećanje otpornosti na abrazijsko trošenje cijevi oružja primjenom prevlaka TiN/TiCN

master's thesis

• Title (english): Increase of the Abrasive Wear Resistance of Weapon Barrel by TiN/TiCN Coating
• Author: Mihael Lalić
• Mentor: Mirko Jakopčić (mentor)
• Mentor: Darko Landek (mentor)
• Committee member: Darko Landek (predsjednik povjerenstva)
• Committee member: Krešimir Grilec (član povjerenstva)
• Committee member: Mirko Jakopčić (član povjerenstva)
• Granter: University of Zagreb; (Croatian Defence Academy "Dr. Franjo Tuđman"); Zagreb
• Defense date and country: 2019-07-17, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences

Abstract

U ovome diplomskome radu obrađuje se i pojašnjava namjena cijevi kao najvažnije sastavnice svakog topničkog oružja, te djelovanje abrazije, jednoga od najznačajnijih mehanizama trošenja. Štoviše, bavi se posljedicama trošenja cijevi na balističko ponašanje projektila te nastoji riješiti pitanje kako se najučinkovitije boriti protiv trošenja i maksimalno prolongirati životni vijek cijevi. Jedan mogući odgovor na to je inovativni postupak nitriranja u plazmi koji je zauzeo središnje mjesto eksperimentalnoga dijela rada. Da bi se uopće provjerila isplativost postupka plazmanitriranja, uzorci nitrirani na taj način su se morali podvrgnuti ispitivanju otpornosti na trošenje abrazijom, kako bi se dobili rezultati na temelju kojih se, uspoređujući ih s rezultatima nenitriranih uzoraka, može odlučivati o primjenjivosti postupka u širim razmjerima.

Abstract (english)

This master's thesis strives to explain the purpose of a weapon barrel, the most important component of every artillery weapon, and the effect of abrasion, one of the most significant mechanisms of surface degradation, on it. Moreover, it scrutinizes on consequences that damaged weapon barrels have on the ballistic behavior of the projectile and, at the same time, tries to come up with the solution on how to minimize these degradation effects, prolonging the lifetime of the weapon barrel as much as possible. One possible answer to this is the innovative plasma nitration process which is described, with all its advantages and disadvantages, in the experimental part of the paper. In order to evaluate the effectiveness of plasma nitration, nitrated samples had to be subjected to abrasion-resistance analysis so that a comparison can be made with the untreated samples. Then it would be possible to decide on the applicability of the procedure on a wider scale of benefits. A short conclusion is set out in the very end of the paper.

• Keywords: cijev; topničko oružje; proces opaljenja; mehanizam trošenja; abrazija; život cijevi; nitriranje; plazmanitriranje; otpornost na trošenje; gubitak mase
• Keywords (english): weapon barrel; artillery weapon; firing process; surface degradation mechanism; abrasion; weapon barrel lifetime; nitration; plasma nitration; degradation resistance; loss of mass
• Language: croatian
• URN:NBN: urn:nbn:hr:249:436958
• Study programme: Title: Military Engineering; Study programme type: university; Study level: graduate; Academic / professional title: MAGISTAR/MAGISTRA INŽENJER/INŽENJERKA VOJNOG INŽENJERSTVA (MAGISTAR/MAGISTRA INŽENJER/INŽENJERKA VOJNOG INŽENJERSTVA)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-12-05 10:52:50