strength degradation of 42crmo steel in a thermal field

strength degradation of 42crmo steel in a thermal field

Acta Metall Sin

42CrMo steel has a good combination of strength and toughness after quenching and tempering treatment, which make it an ideal candidate material for high strength bolt. Nevertheless, with the increase of bolt diameter in wind power field, the hardenability of 42CrMo steel is inadequate to manufacture the high strength bolt with diameter over 36 mm.

Application potential of high performance steels for

Steel grade 42CrMo has been widely used in China for making high strength bolts. However the resistance to hydrogen induced cracking of this alloy is insufficient for the application. Modification of this steel grade by microalloying allows tolerating up to six times higher hydrogen content without causing severe hydrogen embrittlement. Carbon Steel Handbook - OLIweldability, carbon steel is one of the most commonly used materials in the electric power generation industry. Carbon steels in which carbon represents 0.150.35%those used most often as boiler and piping materialsare the focus of this Carbon Steel Handbook. Although carbon steel is available in virtually all product forms, it is the

Carbon Steel Handbook - OLI

weldability, carbon steel is one of the most commonly used materials in the electric power generation industry. Carbon steels in which carbon represents 0.150.35%those used most often as boiler and piping materialsare the focus of this Carbon Steel Handbook. Although carbon steel is available in virtually all product forms, it is the Chuang Wang's research works Wuhan University, Wuhan Chuang Wang's 5 research works with 4 citations and 153 reads, including:Strength degradation of 42CrMo steel in a thermal field and its characterization method

Chuang Wang's research works Wuhan University, Wuhan

Chuang Wang's 5 research works with 4 citations and 174 reads, including:Strength degradation of 42CrMo steel in a thermal field and its characterization method Construction Materials (Wood, Concrete, Steel Steel Corrosion is the most common and expensive form of material degradation for construction steels, including concrete reinforcement.The U.S. Department of Transportation estimates that the annual direct cost of corrosion in the United States is a staggering $276 billion.

Controlling Grain Sizes of 42CrMo Steel by Pre-Stress

2- Section 2.1; it is recommended to present the chemical composition of 42CrMo Steel and the machine characteristic for PSHG in separate tables. Also, the number of samples should be stated. Response:Considering the Reviewers suggestion, we present the chemical composition of 42CrMo Steel in Controlling Grain Sizes of 42CrMo Steel by Pre-Stress According to the research in References [9,10,11], within a strain range from 0.08 mm to 0.18 mm for 42CrMo high-strength steel, the stresses increased almost linearly and the effect of temperature on the ratios was very small. Thus, in order to evaluate the constant n, true strain

Fatigue crack propagation experiment and numerical

42CrMo steel has ultrahigh strength and toughness. 1,2 After quenching and tempering, it has higher fatigue limit and resistance to multiple impacts. It is widely used in structures with high strength. 3,4 These structures tend to produce fatigue cracks during long-term service. If they are not discovered in time, the cracks will extend under the action of alternating loads and eventually lead Fatigue crack propagation experiment and numerical 42CrMo steel has ultrahigh strength and toughness. 1,2 After quenching and tempering, it has higher fatigue limit and resistance to multiple impacts. It is widely used in structures with high strength. 3,4 These structures tend to produce fatigue cracks during long-term service. If they are not discovered in time, the cracks will extend under the action of alternating loads and eventually lead

Fiber-Embedded Metallic Materials:From Sensing towards

These shifts were attributed to the fact that the fiber is subjected to axial compression and thermal contraction of aluminum because of Ni deposition during plating and thermal contraction of aluminum substrate The metallized FBG was then embedded into 42CrMo steel successfully and a smart metal part was acquired. strength degradation Finite Element Simulation of Thermal Residual Stresses in Jan 20, 2005 · Finite element analysis was used to estimate thermal residual stresses developed in silicon nitride bodies bonded by metallic interlayers. Stresses were calculated for various characteristic metals, namely, Ni, Al, and Si, assuming elastic and elasticplastic behavior.

Hongchao JI Postdoctoral University of Science and

42CrMo steel belongs to low-alloy medium carbon steel and also belongs to ultra-high-strength steel. In this study, thermal compression tests (800°C - 1200°C, 0.01s¹ - 10s¹) and How To Weld 4140 Steel WELDING ANSWERSAISI 4140 steel is alloyed with chromium and molybdenum, hence the term chromoly steel. The addition of these alloying elements and its relatively high carbon content (around 0.40%) provide this low-alloy steel with excellent strength to weight ratio and make it

How to Calculate Thermal Expansion of Steel Sciencing

Mar 14, 2018 · To calculate how much a length of steel will increase, you need to know how much the temperature increases and the original length of the steel. Like most materials, steel expands when the surrounding temperature increases. Each material has a different response to the heat, which is characterized by its thermal expansion coefficient. ISIJ International Steel Science PortalSteel Science Portal is a website for accessing the latest information about steel-related technology. The site provides a cross-search function for accessing treatises in the field of steel technology, a database of report abstracts from the main steel and steel-related journals, links to the principle journals and steel company technical reports, as well as links to steel-related news and

Identification for the optimal working parameters of as

Mar 15, 2012 · The intrinsic workability of as-extruded 42CrMo high-strength steel was investigated by using processing maps constructed from the stressstrain data generated by hot compression tests with a height reduction of 60% over a range of temperatures 11231348 K and strain rates 0.0110 s 1.As the true strain was 0.3, 0.5, 0.7, and 0.9, respectively, the responses of strain rate In-Field NDT for Yield Stress, Tensile Strength, Residual In-field AIS2100 series generates an indentation load depth curve used to show tensile properties such as flow curve, yield strength, tensile strength, and work hardening exponent. The AIS2100 nondestructive NDT inspection and testing machine has a high power motor and high-strength decelerator and precisely controls moving parts and speed.

Journal of Iron and Steel Research International Online

Nov 25, 2020 · Effect of high-temperature reduction pretreatment on internal quality of 42CrMo casting billet Authors (first, second and last of 6) of friction stir spot-welded DH590 automotive high-strength steel plates Authors (first, second and last of 5) casting stainless steels Z3CN20.09M with long-term thermal aging degradation Authors (first Materials Letters Vol 274, 1 September 2020 select article Strength degradation of 42CrMo steel in a thermal field and its characterization method. Short communication Full text access Strength degradation of 42CrMo steel in a thermal field and its characterization method. Sheng Liu, Chong Cui, Da Zhang, Chuang Wang, Xiao Wang. Article 128031 Download PDF. Article preview.

Mechanical Properties of Metals

The most common properties considered are strength, hardness, ductility, and impact resistance. Strength The strength of a metal is its ability to withstand the action of external forces without breaking. Tensile strength, also called ultimate strength, is the maximum strength developed in a Microstructure and mechanical properties of the Si3N4 Nov 01, 2010 · The Si 3 N 4 ceramic was joined to 42CrMo steel using AgCuTi + Mo composite filler. Effect of Mo particles content on the microstructure and mechanical properties of the joints were investigated. Defect-free joints were received when the Si 3 N 4 /42CrMo steel joints were brazed with AgCuTi + Mo composite filler. The results show that a continuous reaction layer which is composed

Modeling and Composition Design of Low-Alloy Steels

Nov 24, 2020 · Because the strength of low-alloy ultra-high-strength steel is mainly achieved by solid solution strengthening with carbon , the addition of alloying elements can adjust the carbon content in the steel, and specific alloying elements, such as Ti, Nb, V, and Mo, can achieve coexistence with C in the martensite structure and achieve precipitation Numerical simulation and experimental investigation of Mar 01, 2011 · Finite element method (FEM) and processing experiments were utilized to investigate the thermal phenomena and microstructure of laser overlap welding of Ti6Al4V and 42CrMo. A FEM model of temperature field was established, under considerations of thermal contact resistance and forced convection effect of shielding gas flow.

Numerical simulation and experimental investigation of

Mar 01, 2011 · In the lower sheet alloy steel 42CrMo, the microhardness of HAZ was much higher than that of parent material mainly due to the self-quenching effects and the formation of a large amount of martensite. The microhardness of region A in Fig. 9 varied in the range of 675825 HV, reaching the maximum values at the region near 42CrMo. These results Overview of aluminum alloy mechanical properties during Apr 29, 2015 · Aluminum alloys are increasingly being used in a broad spectrum of load-bearing applications such as lightweight structures, light rail, bridge decks, marine crafts, and off-shore platforms. A major concern in the design of land-based and marine aluminum structures is fire safety, at least in part due to mechanical property reduction at temperatures significantly lower than that for steel.

Prediction of Crack Growth and Fatigue Life Estimation of

The fracture position is located at a sharp edged groove between two journals with different cross-sectional area. It was reported that a locomotive turbocharger main- shaft fractured, which had serviced for 140,000 km before failure.The failed main-shaft was made of 42CrMo steel. The hardness of core material is specified as HB260-300. Residual Strength Evaluation of First-Stage Absorber With Apr 10, 2020 · Uniaxial strength is checked considering axial stress, hoop stress, and radial stress which is the main design idea of high-pressure vessel. However, absorber integrity issues, due to corrosion, thermal stress, and residual stress caused by welds, can cause absorber deformation, strength degradation, and even explosion.

Resistance Nut Welding:Improving the Weldability and

Evaluation of electrode degradation and projection weld strength in the joining of steel nuts to galvanized advanced high strength steel the thermal stress field was obtained and the residual Shaoxia Li's research works Chinese Academy of Sciences Shaoxia Li's 26 research works with 270 citations and 2,204 reads, including:Fluid flow and solute dilution in laser linear butt joining of 304SS and Ni

Studies on the Oxidation Behavior and Microstructural

Nov 29, 2020 · heating components should have superior creep strength, excellent thermal strength, high temperature corrosion, and oxidation resistance [8]. As a type of commercial austenitic stainless steel, HR3C has been widely used as materials for critical components in power plant boilers [9,10] such as superheaters [11] and reheaters [12,13]. Thermal expansion control of composite coatings on Sep 15, 2020 · Composite coatings with ZrW 2 O 8 addition were fabricated on 42CrMo steel by laser cladding. ZrW 2 O 8 significantly decreases the thermal expansion coefficient and elastic modulus of the coating. ZrW 2 O 8 affects the thermal stress state of the coating; in the low-temperature zone, thermal stress is a compressive stress state, and in the high-temperature zone, thermal stress is

Uniaxial Cyclic Deformation Behaviors of 42CrMo Steel with

The cyclic deformation behaviors of 42CrMo steel with different heat treatments were observed by uniaxial cyclic straining and stressing tests at room temperature. The cyclic softening/ hardening features of the tempered or annealed 42CrMo steel and their effects on the uniaxial ratcheting produced in asymmetrical cyclic stressing were discussed. Xiao WANG PostDoc Position Doctor of Engineering The effect of thermal temperature on microstructures and mechanical properties of 42CrMo steel was reported in this paper. A sharp strength degradation in this material occurs as the thermal aged

Strength degradation of 42CrMo steel in a thermal field

Sep 01, 2020 · The effect of thermal temperature on microstructures and mechanical properties of 42CrMo steel was reported in this paper. A sharp strength degradation in this material occurs as the thermal aged temperature rise to 600 °C, and the lath microstructure turned into a fine and granular tempered sorbite. The mechanism of the strength degradation due to C and Cr element

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