Results 1 to 10 of about 226 (100)

Residual Life of Boiler Pressure Parts Made of the 13CrMo4-5 Steel after Long-Term Operation in a Creep Conditions [PDF]

open access: diamondArchives of Metallurgy and Materials, 2018
This paper presents the method for determination of the time of further safe service for welded joints of boiler components after exceeding the design work time.
A. Zieliński   +5 more
doaj   +4 more sources

Microstructure changes responsible for the degradation of the 10CrMo9-10 and 13CrMo4-5 steels during long-term operation [PDF]

open access: hybridMaterials Research Express, 2019
The paper presents results of microstructure and mechanical testing examinations performed using optical and transmission electron microscopy, tensile tests and Charpy tests on 10CrMo9-10 and 13CrMo4-5 steels, before and after they were long-term ...
Monika Gwoździk   +2 more
doaj   +3 more sources

Characterization Of Oxide Layers Formed On 13CrMo4-5 Steel Operated For A Long Time At An Elevated Temperature [PDF]

open access: diamondArchives of Metallurgy and Materials, 2015
The paper contains results of studies into the formation of oxide layers on 13CrMo4-5 (15HM) steel long-term operated at an elevated temperature. The oxide layer was studied on a surface and a cross-section at the inner and outer surface of the tube wall.
Gwoździk M.
doaj   +3 more sources

Temperature Resistance of Magnetoelastic Characteristics of 13CrMo4-5 Constructional Steel [PDF]

open access: hybridActa Physica Polonica A, 2015
In the paper the results of investigation on tensile stresses dependence of magnetoelastic characteristics of cores made of 13CrMo4-5 constructional steel are presented. In the investigation step-cooling treated samples were used. The step-cooling process is a type of heat treatment simulating eects of passing time and environmental conditions ...
D. Jackiewicz   +7 more
  +8 more sources

QUANTITATIVE AND QUALITATIVE COMPARISONS BETWEEN NECESSARY METHODS, APPLICABLE TO WELDING STEEL 13CrMo4-5, TO ESTABLISH THE PREHEATING TEMPERATURE [PDF]

open access: greenFiabilitate şi Durabilitate, 2019
The paper presents and compares a series of standardized and non-standardized methods for determining the pre-heating temperature (Tpr) applied to reduce or eliminate negative effects resulting from the use of the welding process, such as cold cracking.
Dumitru Titi CICIC   +3 more
doaj   +2 more sources

Nonlinear fatigue life prediction model based on the theory of the S‐N fatigue damage envelope [PDF]

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 45, Issue 5, Page 1480-1493, May 2022., 2022
Abstract A nonlinear model is proposed in light of the theory of isodamage curves, to assess the cumulative fatigue damage under multistage loading. The isodamage curves were developed through the theory of the S‐N fatigue damage envelope, proposed by Pavlou. The adopted functional form of the fatigue damage is a commonly accepted general form.
Fredrik Bjørheim   +2 more
wiley   +3 more sources

Plasma Transferred Arc (PTA) Cladding and TOPTIG Cladding of Tubes Made of Steel 13CrMo4-5

open access: diamondBiuletyn Instytutu Spawalnictwa, 2021
The article presents test results concerning the effect of a cladding method and technological process parameters on geometrical properties and dilution of overlay welds. Test overlay welds were deposited on tubes made of steel 13CrMo4-5. The chemical composition of the filler material used in the deposition process corresponded to that of alloy ...
Janusz Rykała, Maciej Różański
openaire   +3 more sources

Effects of thermo-chemical treatment and grinding process of external cylindrical surfaces on residual stresses in 13CrMo4-5 steel

open access: closedJournal of Achievements in Materials and Manufacturing Engineering, 2023
This paper presents a study aimed at determining the effect of the carburizing treatment process and the subsequent grinding process on the residual stresses occurring in ring-shaped specimens made of 13CrMo4-5 steel.During the tests, vacuum carburizing was used, achieving an effective case depth ECD = 0.5 mm.
R. Wójcik, J. Sawicki
openaire   +2 more sources

The Influence of TIG Welding Technology on the Properties and Quality of Joints Made of Dissimilar Steels

open access: yesScientific Journal of Gdynia Maritime University, 2022
The paper presents a new technology for welding dissimilar steels using the TIG method. Following the welding, the joint was subjected to non-destructive testing, and subsequently a Vickers hardness measurement.
Agata Wieczorska, Tomasz Dyl
doaj   +1 more source

Some advanced welding technologies applied for repair welding in power plants [PDF]

open access: yes, 2021
Steels are subjected to many time-dependent degradation mechanisms when they are applied in electric power plants. They are exposed to high temperatures, multi-axial stresses, creep, fatigue, corrosion, and abrasion during such services. Used under these
Odanović, Zoran Dušan
core   +2 more sources

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