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Short-Time Creep, Fatigue and Mechanical Properties of 42CrMo4 - Low Alloy Structural Steel (CROSBI ID 232355)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Brnić, Josip ; Čanađija, Marko ; Turkalj, Goran ; Kršćanski, Sanjin ; Lanc, Domagoj ; Brčić, Marino ; Zeng, Gao Short-Time Creep, Fatigue and Mechanical Properties of 42CrMo4 - Low Alloy Structural Steel // Steel and composite structures, 22 (2016), 4; 875-888. doi: 10.12989/scs.2016.22.4.875

Podaci o odgovornosti

Brnić, Josip ; Čanađija, Marko ; Turkalj, Goran ; Kršćanski, Sanjin ; Lanc, Domagoj ; Brčić, Marino ; Zeng, Gao

engleski

Short-Time Creep, Fatigue and Mechanical Properties of 42CrMo4 - Low Alloy Structural Steel

The proper selection of materials for the intended use of the structural member is of particular interest. The paper deals with determining both the mechanical properties at different temperatures and the behavior in tensile creep as well as fatigue testing of tensile stressed specimens made of low alloy 42CrMo4 steel delivered as annealed and cold drawn. This steel is usually used in engineering practice in design of statically and dynamically stressed components. Displayed engineering stress - strain diagrams indicate the mechanical properties, creep curves indicate the material creep behavior while experimental investigations of fatigue may ensure the fatigue limit determination for considered stress ratio. Also, hardness testing provides an insight into material resistance to plastic deformation. Experimentally obtained results regarding material properties were: tensile strength (735 MPa / 20°C, 105 MPa / 680°C), yield strength (593 MPa / 20°C, 76 MPa /680°C). Fatigue limit in the amount of 532.26 MPa, as maximum stress at stress ratio R = 0.25 at ambient temperature was calculated on the basis of experimentally obtained results. Regarding the creep resistance it is visible that this steel can be treated as creep resistant at high temperatures (including 5800C) when applied stress is of low level (till 0.2 of yield stress).

42CrMo4 steel ; mechanical properties ; short-time creep ; fatigue ; fatigue limit

13.09.1.1.01

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Podaci o izdanju

22 (4)

2016.

875-888

objavljeno

1229-9367

10.12989/scs.2016.22.4.875

Povezanost rada

Brodogradnja, Strojarstvo, Temeljne tehničke znanosti

Poveznice
Indeksiranost