Tensile properties and hardness of two types of 11Cr-ferritic/martensitic steel after aging up to 45,000 h

Yano, Yasuhide; Tanno, Takashi; Sekio, Yoshihiro; Oka, Hiroshi; Ohtsuka, Satoshi; Uwaba, Tomoyuki; Kaito, Takeji

doi:10.1016/j.nme.2016.08.007

Cited by 19 publications

(10 citation statements)

References 17 publications

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“…Therefore, the recommended heat treatment for 15Cr12MoVWN steel includes two steps composed of normalizing at 1050 °C followed by AC and tempering at 700 °C. In this condition, the tensile properties were 810 MPa (YS), 1014 MPa (UTS) and 18.8% (elongation) tested at room temperature, the values were 469 MPa (YS), 577 MPa (UTS) and 39.8% (elongation) for specimens tested at 550 °C.…”

Section: Recommended Heat Treatment With Respect To Tensile Propertiementioning

confidence: 89%

“…From Figure 10, normalization can be conducted at temperatures in the range of 1000-1080 • C followed by OQ or AC and tempering at temperatures in the range of 650-760 • C. However, normalizing at 1080 • C and tempering at 650 • C is not recommended from the viewpoint of tensile ductility. Therefore, the recommended heat treatment for 15Cr12MoVWN steel includes two steps composed of normalizing at 1050 • C followed by AC and tempering at 700 • C. In this condition, the tensile properties were 810 MPa (YS), 1014 MPa (UTS) and 18.8% (elongation) tested at room temperature, the values were 469 MPa (YS), 577 MPa (UTS) and 39.8% (elongation) for specimens tested at 550 • C.…”

Section: Recommended Heat Treatment With Respect To Tensile Propertiementioning

confidence: 99%

“…Numerous scholars studied the precipitation sequences during normalizing and tempering of HT-9 steel [15,16]. The heat treatment process recommended for HT-9 steel by Rowcliffe [17] involves normalizing at 1050 • C accompanied by tempering at 780 • C for 2 h. The proposed heat treatment of PNC-FMS was divided into two categories, that is, normalizing at 1100 • C and tempering at 780 • C to satisfy the requirements of high-temperature creep strength for cladding tubes, and normalizing at 1050 • C and tempering at 700 • C to satisfy the requirements of tensile strength and ductility for wrapper tubes [18]. Suitable heat treatments for normalizing/tempering of EM10, Gr.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Heat Treatments on Microstructural Evolution and Tensile Properties of 15Cr12MoVWN Ferritic/Martensitic Steel

Hao

Wang

2020

Metals

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In this study, the phase transformation temperature of 15Cr12MoVWN ferritic/martensitic steel was determined by differential scanning calorimetry to provide a theoretical basis for the design of a heat treatment process. An orthogonal design experiment was performed to investigate the relationship between microstructure and heat treatment parameters, i.e., normalizing temperature, cooling method and tempering temperature by evaluating the room-temperature and elevated-temperature tensile properties, and the optimum heat treatment parameters were determined. It is shown that the optimized heat treatment process was composed of normalizing at 1050 °C followed by air cooling to room temperature and tempering at 700 °C. Under the optimum heat treatment condition, the room-temperature tensile properties were 1014 MPa (UTS), 810.5 MPa (YS) and 18.8% (elongation), while the values are 577.5 MPa (UTS), 469 MPa (YS) and 39.8% (elongation) tested at 550 °C. The microstructural examination shows that the strengthening contributions from microstructural factors were the martensitic lath width, dislocations, M23C6, MX and grain boundaries of prior austenite grain (PAG) in a descending order. The main factors influencing the tensile strength of 15Cr12MoVWN steel were the martensitic lath width and dislocations.

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Section: Recommended Heat Treatment With Respect To Tensile Propertiementioning

confidence: 89%

Section: Recommended Heat Treatment With Respect To Tensile Propertiementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Heat Treatments on Microstructural Evolution and Tensile Properties of 15Cr12MoVWN Ferritic/Martensitic Steel

Hao

Wang

2020

Metals

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“…Yamamoto's data only covers temperatures ranging from about 300 to 1000 K [13]. Based on research by Yano et al [19] on other ferritic and martensitic steels, there are distinct temperature dependent regions (low, mid, high) of the UTS. In the low temperature region the UTS drops relatively slowly with increasing temperature.…”

Section: Thermophysical Propertiesmentioning

confidence: 99%

Modeling Benchmark for FeCrAl Cladding in the IAEA CRP ACTOF: FeCrAl-C35M Material Models and Benchmark Cases Specifications

Pastore

Gamble

Hales

2017

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This report contains the information necessary to set up fuel performance code calculations for the FeCrAl modeling benchmark in the IAEA ACTOF project. First, we provide a set of models and properties for a selected FeCrAl alloy. Detailed equations and data are given which can be implemented by participants in their codes. Second, we provide standard specifications for the benchmark cases. Proposed cases are relatively simple and cover both LWR normal operating and loss of coolant conditions. Details are given for geometries, input parameters and boundary conditions. To the benefit of the participants, indications on the setup of simulations based on previous experience at INL with the BISON code are also shared. Third, we provide lists of output parameters for code-to-code benchmark comparisons. Relative to previous publications and communications, additional information, data and discussion were added in this report, and corrections were made.

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“…Yamamoto's data only covers temperatures ranging from 300 to 1000 K [44]. Based on research by Yano et al [46] on other ferritic and martensitic steels, there are distinct temperature dependent regions (low, mid, high) of the UTS. In the low temperature region the UTS drops relatively slowly with increasing temperature.…”

Section: Yield Stress and Ultimate Tensile Strengthmentioning

confidence: 99%

Nuclear Energy Advanced Modeling and Simulation (NEAMS) Accident Tolerant Fuels High Impact Problem: Engineering Scale Models and Analysis

Gamble

Hales

Perez

et al. 2017

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As part of the Department of Energy's Nuclear Energy Advanced Modeling and Simulation program, an Accident Tolerant Fuel High Impact Problem was initiated at the beginning of fiscal year 2015 to investigate the behavior of U 3 Si 2 fuel and iron-chromium-aluminum (FeCrAl) cladding under normal operating and accident reactor conditions. The High Impact Problem was created in response to the United States Department of Energy's renewed interest in accident tolerant materials after the events that occurred at the Fukushima Daiichi Nuclear Power Plant in 2011. The High Impact Problem is a multi national laboratory and university collaborative research effort between

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Tensile properties and hardness of two types of 11Cr-ferritic/martensitic steel after aging up to 45,000 h

Cited by 19 publications

References 17 publications

Effect of Heat Treatments on Microstructural Evolution and Tensile Properties of 15Cr12MoVWN Ferritic/Martensitic Steel

Effect of Heat Treatments on Microstructural Evolution and Tensile Properties of 15Cr12MoVWN Ferritic/Martensitic Steel

Modeling Benchmark for FeCrAl Cladding in the IAEA CRP ACTOF: FeCrAl-C35M Material Models and Benchmark Cases Specifications

Nuclear Energy Advanced Modeling and Simulation (NEAMS) Accident Tolerant Fuels High Impact Problem: Engineering Scale Models and Analysis

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