Quality 42CrMo4 , astm a53b .za supplier +N 0.11 Fatigue strength exponent, b low cycle number +QT 0.08 +N 1.00 Fatigue ductility exponent, c low cycle number Steels - Endurance Limits and Fatigue Stress Fatigue limit, endurance limit, and fatigue strength are used to describe the amplitude (or range) of cyclic stress that can be applied to the material without , astm a53b .za supplier
BS EN 42CrMo4 round steel has better performance than 34CrMo4 steel due to the carbon and chromium content is higher. 42CrMo4 alloy steel has higher strength and hardenability. The 42CrMo4 alloy material also has high fatigue strength and good low-temperature impact toughness. The temper brittleness is not obvious.
compression low cycle fatigue tests were carried out. Monotonic and cyclic mechanical properties are shown in Table 2 (cyclic properties obtained by fitting the test results). The geometry and dimensions of the specimen are shown in Fig. 1. Table 1 Chemical composition of the material studied 42CrMo4 (in wt%). C Si Mn P S Cr Ni Mo Cu
The 42CrMo4 steel is usually preferred when high strength is required. The material properties and fatigue behavior of 42CrMo4 steel are better than those of 41Cr4 steel. The material cost changes based on material size. In addition to this information, 42CrMo4 steel is more expensive than 41Cr4 steel (Bayrak et al., 2007). Moreover, these type , astm a53b .za supplier
material parameters. This paper presents the resu lts of the fatigue crack growth rate measurements for the 42CrMo4 steel (parameters of the Paris law C and m ). This high strength low-alloy steel is mostly used for the slewing bearing rings and other highly loaded machine parts.
The microstructural characteristics, tensile properties and low-cycle fatigue properties of a dual-phase steel (DP780) were investigated following its joining by three methods: laser welding , astm a53b .za supplier
Fatigue Performance of the Mechanically Sur 42CrMo4 and 54SiCr6: Shot Peening vs. Roller. Dariusz Wierzchowski') Alfred 0stertag2) Lothar wagnerl) ') Chax of Phys~cal Metallurgy and Materials Technology, Techn~cal Uniw irly of F31ancle11l-iurg at Cottbus, Cott- bus, Germany Ecoroll AG, Celle, Gemany. 1 Introduction.
In structures subjected to heavy cyclic loading, fatigue damage of material during cyclic plasticity is one of the most frequent failure mechanisms. For determining the low-cycle fatigue lifetime, it is essential to know the elasto-plastical response of the material to a cyclic load, since the accumulated plastic strain has a direct influence on the lifetime of the material.
This superficial hardening does not modify the tensile mechanical characteristics of 42CrMo4 steel but renders it more sensitive to overload in fatigue. As a result, a 0.7% total deformation imposed corresponding to a loading level of 850MPa, constitutes the limit of gain in fatigue obtained by the ion nitriding considered.
behaviour low cycle fatigue nitrided layers and to determine the fatigue gain limit of these layers. 2. Material and Treatment The studied material is a low alloy of 42CrMo4 steel, used in the mechanical engineering industry for the manufacturing of transmission systems (gears) and of injection moulds (for plastics).
Low cycle fatigue life of GP91 cast steel at 400 and 600oC temperature In a work carried out to investigate the properties of GP91 at elevated temperatures  fatigue tests were conducted at five levels of strain amplitudes and at a temperature of 400, 550 and 600 C.
Low Cycle Fatigue Behaviour of Nitrided Layer of 42CrMo4 Steel. Its chemical composition is defined in table 1. The untreated structure is of tempered martensite type. An ion nitriding was applied to a series of mechanical specimens, tension and lowcycle fatigue, under the conditions defined in table 2.
Mechanical properties of 4140 steel. From EVOCD. Jump to: navigation, search. 4140 steel is a low alloy steel commonly used in structural members and mechanical components. It is composed of Chromium, Manganese, Carbon, Silicon, Molybdenum, Sulfur and Phosphorus submerged in a matrix of Iron. , astm a53b .za supplier Fatigue life of 4140 steel having a Rockwell , astm a53b .za supplier
Results indicated that same mechanical properties for 41Cr4 and 42CrMo4 can be achieved by tempering 41Cr4 about 50 C lower temperature than for 42CrMo4. In addition to the mechanical tests, fatigue tests were performed for both materials. Weibull distributions were plotted. Results indicated that 42CrMo4 had a longer life than 41Cr4 material.
The unexpected collapse of engineering structures is often caused by the fatigue phenomenon resulting from degradation of mechanical properties of materials due to multiaxial cyclic loadings. The interpretation of such degradation is a topic of intensive research in multiaxial fatigue. The fatigue strength is commonly evaluated by the equivalent stress based on the shear stress in the , astm a53b .za supplier
In this study the uniaxial/biaxial low-cycle fatigue behaviour of three structural steels (Ck45 normalized steel, 42CrMo4 quenched and tempered steel and AISI 303 stainless steel) are studied , astm a53b .za supplier
estimation of cyclic properties i.e. cyclic material be-haviour from monotonic properties, such possibility would certainly contribute to improve product design, especially in early stages of development. This work de-scribes investigations of correlations between experi-mentally determined cyclic parameters and hardness of low-alloy steel 42CrMo4.
The fatigue strength at a high number of cycles with initial elasticplastic behavior was experimentally investigated on quenched and tempered 42CrMo4 steel. Fatigue tests on unnotched specimens were performed both under load and strain controls, by imposing various levels of amplitude and with several high load ratios.
Request PDF on ResearchGate | Influence of ion nitriding on fatigue strength of low-alloy (42CrMo4) steel: Experimental characterization and predictive approach | In this research the structure , astm a53b .za supplier
One has in this work the results relating to the role of the quality of the compound and diffusion layers in the bending fatigue resistance of the 42CrMo4 steel. The nitriding contribution is quantified in term of the endurance limit at 106 cycles in bending fatigue.
Read "Influence of ion nitriding on fatigue strength of low-alloy (42CrMo4) steel: Experimental characterization and predictive approach, International Journal of Fatigue" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Low-cycle fatigue properties of steel 42CrMo4 - ScienceDirect. Mar 25, 2003 The decision to use such a model was based upon the results of own experimental research of a low-alloy steel 42CrMo4 (ISO 683/1), which show the influence of material damage on cyclic strainstress response of the material, as well as the results of experiments and numerical simulation of material response and , astm a53b .za supplier
In this paper, a 42CrMo4 steel is subjected to Low-Cycle Fatigue (LCF) loading and Thermo-Mechanical Fatigue (TMF) loading in the temperature range between 300 C and 600 C.
Mechanical Properties, Short Time Creep, and Fatigue of an Austenitic Steel Josip Brnic 1,*, Goran , astm a53b .za supplier . Since the low-cycle fatigue damage evolution in the metastable austenitic steel causes a deformation induced phase transformation from austenite to martensite, the , astm a53b .za supplier The basic properties of steel depend on the chemical composition , astm a53b .za supplier
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Short-Time creep, fatigue and mechanical properties of 42CrMo4 - Low alloy structural steel Article in Steel and Composite Structures 22(4):875-888 November 2016 with 124 Reads
THE FATIGUE PROPERTIES OF LOW ALLOY AND CARBON STRUCTURAL STEElS by J. Eo Stallmeyer and Ro M. Morison Approved by Wo Ho Munse A Technical Report for the Engineering Foundation, Chicago Bridge and Iron Company) American Iron an~Steel Institute, and the Welding-Research Council Fatigue Committee Department of Civil Engineering
is fast, the durability of nitrided specimens at low cycle fatigue often is lower than the durability of specimens not processed by chemical heat treatment method . In the work  it is shown that ion nitriding up to the depth of 350 m of specimens from alloyed grade 42CrMo4 steel reduces durability in the area of low cycle fatigue and , astm a53b .za supplier
failure in a low strength condition but very sensitive in a high-strength condition. The present study investigates the influence of tempering temperature on the fatigue resistance of a low alloyed steel. Uniaxial tension-compression fatigue tests (50 Hz/1 kHz and R=-1) were performed on specimens made of 42CrMo4, which were tempered at six
Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ECF21. 21st European Conference on Fracture, ECF21, 20-24 June 2016, Catania, Italy Very High Cycle Fatigue Resistance of the Low Alloyed Steel 42CrMo4 in Medium- and High-Strength Quenched and Tempered Condition K.-H. Langa, *, M. Korna and T. Rohm a, b a Karlsruhe Institute of Technology (KIT) Institute for Applied Materials (IAM), Engelbert-Arnold-Str. 4, 76128 Karlsruhe, Germany b , astm a53b .za supplier