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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.22 No.4
- 발행연도
- 2016.1
- 수록면
- 875 - 888 (14page)
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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 <i>R</i> = 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 580°C) when applied stress is of low level (till 0.2 of yield stress).
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참고문헌 (32)
참고문헌 신청
2015 / Annual Book of ASTM Standards, Metals - Mechanical Testing; Elevated and Low-Temperature Tests; Metallography, Vol. 03.01 / ASTM International
Bathe, K.J. / 1996 / Finite Element Procedure / Prentice-Hal, Inc.
Brnic, J. / 2009 / Tool material behavior at elevated temperatures / Mater. Manuf. Process. 24(7-8):758~762
Brnic, J. / 2010 / Structural steel ASTM A709-behavior at uniaxial tests conducted at lowered and elevated temperatures, short-time creep response and fracture toughness calculation / J. Eng. Mech. 136(9):1083~1089
Brnic, J. / 2010 / 50CrMo4 steel-determination of mechanical properties at lowered and elevated temperatures, creep behavior and fracture toughness calculation / J. Eng. Mater. Technol. 132(2):021004-1~021004-6
Bathe, K.J. / 1996 / Finite Element Procedure / Prentice-Hal, Inc.
Brnic, J. / 2009 / Tool material behavior at elevated temperatures / Mater. Manuf. Process. 24(7-8):758~762
Brnic, J. / 2010 / Structural steel ASTM A709-behavior at uniaxial tests conducted at lowered and elevated temperatures, short-time creep response and fracture toughness calculation / J. Eng. Mech. 136(9):1083~1089
Brnic, J. / 2010 / 50CrMo4 steel-determination of mechanical properties at lowered and elevated temperatures, creep behavior and fracture toughness calculation / J. Eng. Mater. Technol. 132(2):021004-1~021004-6
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