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Advances in Materials Science
EN This paper describes influence of welding conditions on structure and corrosion resistance of dissimilar stainless steels welded joints. Butt joints between duplex 2205 and austenitic 316L steels were performed with the use of submerged arc welding method. The plates 15 mm in thickness were welded w[...]
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Advances in Materials Science
EN In this work, the electrochemical microcel technique bas been coupled with a Peltier heating stage to study the local electro-chemical behaviour of both phases of duplex stainless steels (UNS 31803 and UNS S32304) in 1.7M NaCl (pH=3) at 25°C and 80°C. The results (anodic and cathodic current densiti[...]
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Polish Journal of Chemistry
2004 Vol. 78 / nr 9 1261-1268
EN Electrochemical noise is electrochemical technique of growing interest. In the case of random signals obtained by discussed method the power spectral density is one of the fundamental characteristic of process. However its correct estimation imposes stationarity condition on signal under analysis. I[...]
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Ochrona przed Korozją
2001 nr 6 148-151
PL Przedstawiono mechanizmy destrukcyjnego działania mikroorganizmów ze szczególnym uwzględnieniem roli biofilmu. Opisano udział mikroorganizmów w procesach korozyjnych metali z zaznaczeniem roli jaką spełniają beztlenowe bakterie redukujące siarczany (SRB), powodujące korozję wżerową. przedstawiono ob[...]
EN The mechanisms of metal destruction induced by microorganisms have been described. Expecially, biofilm importance has been taken into consideration. Participation of different microorganisms in corrosion processes has been described including, first of all, the Sulphur Reducing Bacteria (SRB) induci[...]
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Polish Maritime Research
2015 nr 3 57--66
EN In the paper has been discussed influence of stresses on general corrosion rate and corrosion pit nucleation rate and growth , whose presence has been questioned by some authors but accepted by most of them. Influence of roughness of pit walls on fatigue life of a plate suffering pit corrosion and p[...]
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Archives of Metallurgy and Materials
EN This paper presents results of pitting corrosion resistance of TIG (autogenous and with filler metal) and A-TIG welded lean duplex stainless steel S82441/1.4662 evaluated according to ASTM G48 method, where autogenous TIG welding process was applied using different amounts of heat input and shieldin[...]
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Polish Maritime Research
2014 nr 1 62--69
EN The present paper is a literature survey focused on a specific kind of corrosion, i.e. pitting corrosion and its influence on fatigue of ship and offshore steels. Mechanisms of a shortand long-term pitting corrosion in marine environment have been described including pit nucleation and growth phases[...]
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Polish Maritime Research
2011 nr 4 54-58
EN The present paper deals with the influence of pitting corrosion on mechanical properties of mild and low alloy steels and strength of steel structures under static and quasi-static loads. Pitting corrosion is a very important phenomenon that influence local strength of ship hull members. The present[...]
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Archives of Metallurgy and Materials
2019 Vol. 64, iss. 4 1627--1632
EN The paper presents the results of the pitting resistance investigations of selected stainless steels in the chloride environment and the simultaneous impact of erosive factors using the cyclic polarization technique. Additionally, using electrochemical techniques, ie: electrochemical impedance spect[...]
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Logistyka
2014 nr 6 9241--9246
EN The influence of the number of cells belonging to neighborhood of the cellular automata on the fidelity of real physical processes on the example pitting corrosion simulation is shown in this paper. Investigated four variants of Von Neumann neighborhood of the 1st and 2nd order and Moore neighborhoo[...]
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Archives of Metallurgy and Materials
EN The paper presents the results of the pitting resistance investigations of selected stainless steels in the chloride environment and the simultaneous impact of erosive factors using the cyclic polarization technique. Additionally, using electrochemical techniques, ie: electrochemical impedance spect[...]
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Advances in Materials Science
EN In the present paper, grid points coupled with an image analysis method are used to map strain gradients within grains and across interfaces of duplex stainless steels at the micro- and nanoscale under straining conditions (4.5% plastic strain). Highly heterogeneous strain field are obtained and sit[...]
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Advances in Materials Science
EN Susceptibility to pitting corrosion, hydrogen transport, hydrogen embrittlement and susceptibility to stress corrosion cracking have been studied under the "sea water" and the "acid rain" simulated conditions in order to evaluate the optimum chemical composition, heat treatment, microstructure and s[...]
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Journal of Casting & Materials Engineering
EN The effect of rapid cooling by the vacuum suction casting method (VSC) on the microstructure and electrochemical response of the as-cast 5052 aluminium alloy is presented. The VSC method allowed us to obtain massive samples with a very high cooling rate (102 – 103)oC/s. The microstructure of the qui[...]
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Archives of Metallurgy and Materials
EN The paper presents the results of the electrochemical corrosion tests of Inconel 600 and Inconel 625 laser-welded superalloys. The studies were conducted in order to assess the resistance to general and pitting corrosion in 3.5% NaCl solution. It was found that Inconel 600 possesses good corrosion r[...]
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Archives of Metallurgy and Materials
EN Stainless steel 316L is one of the most common metallic biomaterials used for implants. Its passive surface provides a good corrosion resistance in the body environment, which can be reduced by surface mechanical damages. This is the reason why the bone screws made of stainless steel 316L were subje[...]
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Archives of Metallurgy and Materials
EN The microstructure and corrosion properties of spark plasma sintered yttria dispersed and yttria free duplex and ferritic stainless samples were studied. Spark plasma sintering (SPS) was carried out at 1000°C by applying 50 MPa pressure with holding time of 5 minutes. Linear sweep voltammetry (LSV) [...]
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Journal of Ecological Engineering
EN The paper presents the examples of damage of elements caused by incorrect assessment of pipeline work conditions. The presented damage cases resulted in the need to replace pipelines. This work is an analysis pertaining to the impact of chemical and microbiological synergy of corrosion on stainless [...]
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Archives of Metallurgy and Materials
PL Zaletą procesu metalurgii proszków (P/M) jest lepsza formowalność podczas wytwarzania produktów o złożonym kształcie nie wymagająca późniejszej obróbki mechanicznej i spawania. Ostatnio ten proces stosowano do wytwarzania stopów aluminium. Tak wytworzone stopy aluminium spotkały się z dużym zaintere[...]
EN Powder metallurgy (P/M) process has the advantage of better formability to fabricate complex shape products without machining and welding. And recently this P/M process has been applied to the production of aluminum alloys. The P/M aluminum alloys thus produced also have received considerable intere[...]
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Archives of Mechanical Technology and Automation
PL W artykule przedstawiono wyniki badań odporności na korozję w środowisku z jonami chloru złączy spawanych z różnych gatunków stali kwasoodpornych. Podjęto próbę zróżnicowania odporności korozyjnej połączeń ze względu na sposób wycięcia próbek oraz jakość wykończenia ich powierzchni. Próby prowadzono[...]
EN The paper presents the results of testing acid-resistant steel welded joints corrosion resistance in the environment containing chlorine ions. The author manipulated corrosion resistance by differentiating the samples cutting and the quality of their surface finishing. Tests were performed in variou[...]
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