magistrsko delo
Primož Štefane (Author), Nenad Gubeljak (Mentor), Jožef Predan (Co-mentor)

Abstract

Vsebina magistrske naloge opisuje lomno obnašanje konstrukcijskih jekel v odvisnosti od temperature v temperaturno prehodnem območju. Izrazit raztros, ki ga konstrukcijska jekla kažejo v temperaturno prehodnem območju, je posledica vpliva napetostnega oz. deformacijskega stanja na mikrostrukturo jekla oz. na vsebino krhkih območij (vključkov, izločkov ali napak v materialu). Parameter m, ki definira razmerje med CTODel in Jel v odvisnosti od napetostno- deformacijskega stanja na konici razpoke, se spreminja glede na delež ravninsko deformacijskega stanja (RDS) in ravninsko napetostnega stanja (RNS) skozi temperaturno prehodno področje. V okviru naloge bo določena odvisnost med parametrom m in lomnim obnašanjem konstrukcijskih jekel skozi temperaturno prehodno področje.

Keywords

feritno jeklo;temperaturno prehodno območje;lomna žilavost;mehanika loma;magistrske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: [P. Štefane]
UDC: 539.42:669.14.018.291(043.2)
COBISS: 18338326 Link will open in a new window
Views: 1372
Downloads: 273
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Other data

Secondary language: English
Secondary title: Fracture behaviour of structural steel in temperature transition region
Secondary abstract: The content of the master's thesis describes the fracture behavior of structural steels in dependence of temperature in the transition region. The distinctive scatter, which is shown in the transition temperature range is the consequence of the impact of stress or strain condition on the microstructure of steel, respectively on the content of fragile sites (inclusions, secretions or defects in materials). The parameter m, which defines the relation between CTOD and Jel depending on the stress-deformed condition at the crack point, is changing depending on the portion of the plain strain state (RDS) and plain stress state (RNS) through the transitional temperature field. The dependence between the parameter m and fracture behavior of structural steels through the temperature transition region will be determined in the content of the task.
Secondary keywords: ferritic steel;temperature transition region;fracture toughness;fracture mechanics;
URN: URN:SI:UM:
Type (COBISS): Master's thesis/paper
Thesis comment: Univ. v Mariboru, Fak. za strojništvo, Konstrukterstvo
Pages: IX, 78 str.
ID: 8730436