Application possibilities of low-temperature repairs by welding for creep-resistance material GX12CrMoVNb9-1

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F18%3A00005933" target="_blank" >RIV/46747885:24210/18:00005933 - isvavai.cz</a>

Výsledek na webu

<a href="https://arl.ujep.cz/arl-ujep/cs/csg/?repo=ujeprepo&key=72052783796" target="_blank" >https://arl.ujep.cz/arl-ujep/cs/csg/?repo=ujeprepo&key=72052783796</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21062/ujep/211.2018/a/1213-2489/mt/18/6/980" target="_blank" >10.21062/ujep/211.2018/a/1213-2489/mt/18/6/980</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Application possibilities of low-temperature repairs by welding for creep-resistance material GX12CrMoVNb9-1

Popis výsledku v původním jazyce

Paper is focused on the area of the energy devices working under the higher temperatures and pressures. It deals with repair of new and operational-loaded components of steam and gas turbines (valve and turbine chamber, transmitters, vane carriers, flap-lockable valve bodies and so on). Generally, there occur different types of defects at production and operating of these parts. Many defects are caused by casting (shrinkage cavities, pores, cracks) and fatigue defects. Eventually, there can occur also production defects. Moreover, most of the defects in the mentioned parts generally take effect not until during the subsequent technological operations. However, in such phase of production, only welding technology can be used to repair the given part. That's why as a goal of this paper there was to find such repair welding procedures which ensure the serviceability of mentioned devices in the standard mode indeed at application of the lower tempering temperatures in comparison to the commonly requirements for material GX12CrMoVNb9-1. Lower tempering temperatures have a strong influence on elimination the deformation as well as on the surface oxidation of the machined components.

Název v anglickém jazyce

Application possibilities of low-temperature repairs by welding for creep-resistance material GX12CrMoVNb9-1

Popis výsledku anglicky

Paper is focused on the area of the energy devices working under the higher temperatures and pressures. It deals with repair of new and operational-loaded components of steam and gas turbines (valve and turbine chamber, transmitters, vane carriers, flap-lockable valve bodies and so on). Generally, there occur different types of defects at production and operating of these parts. Many defects are caused by casting (shrinkage cavities, pores, cracks) and fatigue defects. Eventually, there can occur also production defects. Moreover, most of the defects in the mentioned parts generally take effect not until during the subsequent technological operations. However, in such phase of production, only welding technology can be used to repair the given part. That's why as a goal of this paper there was to find such repair welding procedures which ensure the serviceability of mentioned devices in the standard mode indeed at application of the lower tempering temperatures in comparison to the commonly requirements for material GX12CrMoVNb9-1. Lower tempering temperatures have a strong influence on elimination the deformation as well as on the surface oxidation of the machined components.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/FV10510" target="_blank" >FV10510: Nízkoteplotní opravy creepově odolných odlévaných turbínových komponent</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Manufacturing Technology

ISSN

12132489

e-ISSN

—

Svazek periodika

18

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

980-985

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85059333455