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Materials 2017, 10(4), 388; doi:10.3390/ma10040388

Analysis of the Mechanical Behavior, Creep Resistance and Uniaxial Fatigue Strength of Martensitic Steel X46Cr13

1
Department of Engineering Mechanics, Faculty of Engineering, University of Rijeka, Vukovarska 51, 51000 Rijeka, Croatia
2
School of Materials Science and Engineering, Harbin Institute of Technology, XiDaZhi Street 92#, Nangang District, Harbin 150001, China
3
School of Materials Science and Engineering, Henan Polytechnic University, No 2001, Century Avenue, Jiaozuo 454003, China
*
Author to whom correspondence should be addressed.
Academic Editor: Nicola Pugno
Received: 14 January 2017 / Revised: 20 March 2017 / Accepted: 4 April 2017 / Published: 6 April 2017
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Abstract

The article deals with the analysis of the mechanical behavior at different temperatures, uniaxial creep and uniaxial fatigue of martensitic steel X46Cr13 (1.4034, AISI 420). For the purpose of considering the aforementioned mechanical behavior, as well as determining the appropriate resistance to creep and fatigue strength levels, numerous uniaxial tests were carried out. Tests related to mechanical properties performed at different temperatures are presented in the form of engineering stress-strain diagrams. Short-time creep tests performed at different temperatures and different stress levels are presented in the form of creep curves. Fatigue tests carried out at stress ratios R = 0.25 and R = 1 are shown in the form of S–N (fatigue) diagrams. The finite fatigue regime for each of the mentioned stress ratios is modeled by an inclined log line, while the infinite fatigue regime is modeled by a horizontal line, which represents the fatigue limit of the material and previously was calculated by the modified staircase method. Finally, the fracture toughness has been calculated based on the Charpy V-notch impact energy. View Full-Text
Keywords: analysis; mechanical properties; short-time creep; fatigue; X46Cr13 steel analysis; mechanical properties; short-time creep; fatigue; X46Cr13 steel
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Brnic, J.; Krscanski, S.; Lanc, D.; Brcic, M.; Turkalj, G.; Canadija, M.; Niu, J. Analysis of the Mechanical Behavior, Creep Resistance and Uniaxial Fatigue Strength of Martensitic Steel X46Cr13. Materials 2017, 10, 388.

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