Autor: Daunys, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Temperature and hydrogen concentration influence on Zi -2.5Nb alloy mechanical and fracture toughness characteristics
Autorzy:: Daunys, M.
Dundulis, R.
Krasauskas, P.
Powiązania:: https://bibliotekanauki.pl/articles/386588.pdf
Data publikacji:: 2007
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: fracture
temperature
hydrogen
Opis:: This paper deals with an investigation of temperature and hydrogen concentration influence on Ignalina NPP RBMK-1500 unit 2 reactor fuel channel tube material - Zr-2.5Nb zirconium alloy (TMT-2) mechanical and fracture toughness characteristics. Two types of specimens were used in this study - tensile and compact semi-natural specimens. Testing temperatures were selected from 20 to 300°C that correspond various operating regimes of the reactor. Made-up hydrogen saturated specimens were tested at hydrogen concentration levels from 52 up to 140 ppm m order to examine hydrogen influence on mechanical and fracture toughness characteristics of the alloy. Dependence of fracture toughness to various mechanical characteristics of the alloy was analysed. Investigation has shown correlation of stress intensity factor Kc to modified plasticity criterion of the alloy.
Źródło:: Acta Mechanica et Automatica; 2007, 1, 1; 19-22
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Fracture toughness of 19Mn5 steel pipe welded joints materials
Autorzy:: Daunys, M.
Krasauskas, P.
Dundulis, R.
Powiązania:: https://bibliotekanauki.pl/articles/387258.pdf
Data publikacji:: 2009
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: pękanie
wytrzymałość
stal
fracture
strength
steel pipes
Opis:: This paper presents an investigation of Ignalina NPP reactor’s main circulated circuit (MCC) pipeline welded joints materials fracture toughness properties. Standard compact C(T)-1T specimens containing “V” and “K” – type welds were cut off from the various MCC pipe’s zones, produced from the 19Mn5 steel pipe and welded by electrodes UTP-068HH, YONI-13/55 and CT-36. Critical J – integraf JIc values were defined Rusing J–R curve test method, which results on determination of J – integral values as a function of crack extension ?a. The investigation enables to calculate critical crack length ?amax and ?ac sizes and J – integral JIc, Jmax and JPmax values, which are used to predict safe service lifetime of the cracked pipelines.
Źródło:: Acta Mechanica et Automatica; 2009, 3, 4; 24-27
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

Artykuł

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