Sökning: "dry corrosion"
Visar resultat 1 - 5 av 9 uppsatser innehållade orden dry corrosion.
1. Vägsaltets påverkan på närliggande vegetation, mark samt närliggande slitlager
Kandidat-uppsats, SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)Sammanfattning : Syftet med detta arbete är att göra en litteraturstudie och sammanställa fakta om hur vägsalt (NaCl, natriumklorid) påverkar vår stadsmiljö samt att få en överblick hur vegetation, slitlager och markytor i närheten av saltbehandlade vägar påverkas av den höga saltningsintensiteten. I arbetet ingår också en kartläggning av vilka andra alternativ och metoder till salt som provats för att eventuellt kunna vara likvärdiga eller bättre i sin funktion och inte vara lika skadliga som salt är för miljön. LÄS MER
2. Bits & Bobs : Finds from a research excavation of Birka’s rampart: A study with focus on material distribution and metal conservation
Master-uppsats, Stockholms universitet/Arkeologiska forskningslaboratorietSammanfattning : In the spring of 2018, a prospection and subsequent research excavation of a previously unstudied area related to the rampart of the Viking age town of Birka, Sweden, was undertaken by students and professors from the archaeological science department affiliated with Stockholm University.The purpose of this paper is to examine and categorise the various excavated finds, the ensuing conservation and preservation of the metal objects as well as to investigate the context and possible function of the site regarding the spatial distribution of said finds. LÄS MER
3. Corrosion initiation induced by sodium sulfate and sodium chloride particles on Cu and the golden alloy Cu5Al5Zn at simulated atmospheric conditions
Master-uppsats, KTH/MaterialvetenskapSammanfattning : Effects of sodium sulfate (Na2SO4) particle deposition on the atmospheric corrosion of copper (Cu) metal and a Cu-based alloy (Cu5Al5Zn) used in architectural applications were investigated at laboratory conditions compared with effects induced by sodium chloride (NaCl) and to some extent ammonium sulfate (NH4)2SO4 induced corrosion. Pre-deposited surfaces were exposed to repeated wet/dry conditions in a climatic chamber and the formation of corrosion products were assessed using light optical microscopy (LOM), scanning electron microscopy with elemental analysis (SEM/EDS), Fourier transform infrared techniques (FTIR microscopy) and cathodic reduction (CR). LÄS MER
4. Ytbehandling för att motverka uppbyggning : Undersökning av olika ytbehandlingsmetoder och material för applikation i en mjukpappersmaskin
M1-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysikSammanfattning : This exam report includes a survey of surface treatment materials and their associated surface treatment methods for application in a tissue machine commissioned by Valmet AB. The tissue machine produces 24 hours a day in a demanding environment consisting of water, heat, oils, glue, dust and various chemicals. LÄS MER
5. CORROSION-FATIGUE TESTING ON STEEL GRADES WITH DIFFERENT HEAT AND SURFACE TREATMENTS USED IN ROCK-DRILLING APPLICATIONS
Master-uppsats, KTH/MaterialvetenskapSammanfattning : Corrosion fatigue is a common failure mechanism in rock drilling components and many othermechanical parts subjected to cyclic loads in corrosive environments. A crucial part in the design ofsuch components resides in the selection of the right materials for the application, which ideallyinvolves testing and comparison of their performance under working conditions. LÄS MER
