izpis_h1_title_alt

Vpliv popuščanja na fazno sestavo karbidnih izločkov v jeklu X20CrMoV121
Skobir Balantič, Danijela Anica (Author), Vodopivec, Franc (Author), Jenko, Monika (Author), Spaić, Savo (Author), Markoli, Boštjan (Author)

URLURL - Presentation file, Visit http://www.dlib.si/details/URN:NBN:SI:DOC-GRSUBGOO This link opens in a new window

Abstract
Maloogljična jekla, legirana s karbidotvornimi elementi, kot so krom, molibden in vanadij se uporabljajo za izdelavo temperaturno najbolj obremenjenih delov termoenergetskih naprav in objektov. Izhodna mikrostruktura teh jekel je iz popuščenega martenzita, kar zagotavlja optimalno odpornost proti lezenju. Ta mikrostruktura se po rekristalizaciji martenzitnih zrn spremeni v mikrostrukturo s homogeno porazdeljenimi karbidnimi izločki v feritni osnovi, kar povzroči znatno zmanjšanje odpornosti proti lezenju. Delo obravnava sistematično raziskavo vpliva temperature in časa popuščanja v intervalu od 550 [compositum]C do 800 [compositum]C in do 1344 ur na razvoj fazne sestave karbidnih izločkov s poudarkom na temperaturi popuščanja 800 [compositum]C. Rekristalizacija martenzitnih zrn namreč nastopi samo pri tej temperaturi, zaradi česar se močno spremeni porazdelitev karbidnih izločkov v feritni osnovi.

Language:Slovenian
Keywords:chromium steel, steel X20CrMoV121, karbidni izločki, izotermno žarjenje
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:NTF - Faculty of Natural Sciences and Engineering
Year:2003
Publisher:Inštitut za kovinske materiale in tehnologije
Number of pages:353-358 str.
Numbering:Letn. 37, Št. 6
UDC:669.1
ISSN on article:1580-2949
COBISS.SI-ID:473951 Link is opened in a new window
Views:535
Downloads:169
Metadata:XML RDF-CHPDL DC-XML DC-RDF
 
Average score:(0 votes)
Your score:Voting is allowed only to logged in users.
:
Share:AddThis
AddThis uses cookies that require your consent. Edit consent...

Record is a part of a journal

Title:Materiali in tehnologije
Shortened title:Mater. tehnol.
Publisher:Inštitut za kovinske materiale in tehnologije
ISSN:1580-2949
COBISS.SI-ID:106193664 This link opens in a new window

Secondary language

Language:English
Title:Influence of tempering on the phase composition of the carbide precipitates in X20CrMoV121 steel
Abstract:
Low carbon steels alloyed with carbide forming elements chromium, molybdenum and vanadium are widely used in manufacture of high temperature components of thermal power plants. The initial microstructure of these steels consists of tempered martensite and ensures the optimal creep resistance. This microstructure is changed after a recrystallisation of martensite grains to the one with a homogenous distribution of carbide particles within the ferrite matrix thus strongly decreasing the creep resistance. In this work a systematic investigation of the effect of the annealing temperature in the range from 550 [compositum]C to 800 [compositum]C and time up to 1344 hours on the evolution of the phase composition of carbide precipitates was performed with an accent to the annealing temperature of 800 [compositum]C. Only at this temperature the recrystallisation ocurred in martensite grains and the distribution of particles changed significantly.

Keywords:chromium steel, steel X20CrMoV121, carbide precipitates, isothermal annealing

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Comments

Leave comment

You have to log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back