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Keywords: creep
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Proceedings Papers

Proc. ASME. PVP2023, Volume 6: Operations, Applications, & Components, V006T07A011, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-106055
..., but it causes structural rupture or bulging of the duct due to creep in the long term. When hot spot occurs, the steam cooling method is generally used to mitigate the creep damage by spraying the steam onto the hot spot area. In case of extensive hot spot, it is difficult to apply the steam cooling method...
Proceedings Papers

Proc. ASME. PVP2023, Volume 6: Operations, Applications, & Components, V006T07A004, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-105293
...Proceedings of the ASME 2023 Pressure Vessels & Piping Conference PVP2023 July 16-21, 2023, Atlanta, Georgia PVP2023-105293 MULTI-AXIAL STRESS CREEP CONSUMPTION PART I ; TESTING AND VALIDATION OF EX-SERVICE 347 SS Teppei Suzuki, PhD., Yoichi Ishizaki, P.E. Idemitsu Kosan Co., Ltd. Chiba, Japan...
Proceedings Papers

Proc. ASME. PVP2023, Volume 6: Operations, Applications, & Components, V006T07A006, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-105411
... Abstract A cracking damage was found in 347SS flange neck operated at about 520 deg.C after long term operation. In previous report presented in PVP2019-9304, it was well explained by creep damage from FEM analysis using isochronous curve based on API 579/ASME FFS-1 MPC Omega method. Following...
Proceedings Papers

Proc. ASME. PVP2023, Volume 5: Materials & Fabrication, V005T06A015, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-101385
...Proceedings of the ASME 2023 Pressure Vessels & Piping Conference PVP2023 July 16-21, 2023, Atlanta, Georgia PVP2023-101385 LMP AND OMEGA CREEP TESTING OF HPMA CENTRIFUGALLY CAST FE-CRNI ALLOYS Jorge Hau Shell Global Solutions (US) Inc. Houston, Texas, USA Hussain Abdellatif and Park Neil Shell...
Proceedings Papers

Proc. ASME. PVP2023, Volume 5: Materials & Fabrication, V005T06A058, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-106623
... steam methane reformer centrifugal casting austenitic steel creep life management Abstract Steam methane reforming (SMR) is a process in which methane from natural gas is heated, with steam, usually with a catalyst, to produce a mixture of carbon monoxide and hydrogen used in organic...
Proceedings Papers

Proc. ASME. PVP2023, Volume 5: Materials & Fabrication, V005T06A014, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-101378
... creep Omega test method initial strain rate the Omega factor Larson-Miller parameter (LMP) rupture time heater tube stainless steel stabilized stainless steel sensitization sigma phase Abstract A metallurgical evaluation was conducted involving a 316Cb tube removed from...
Proceedings Papers

Proc. ASME. PVP2023, Volume 1: Codes & Standards, V001T01A038, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-106584
... procedures with explicit consideration of creep. The evaluation module of ASME-NB has been added because the lowtemperature design evaluations should be also conducted for a high-temperature component depending on temperature fluctuations. The HITEP platform can be used with high reliability and efficiency...
Proceedings Papers

Proc. ASME. PVP2023, Volume 1: Codes & Standards, V001T01A036, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-107524
... creep sub-sized specimens alloy 617 Abstract Testing on small, sub-sized specimens is of interest in cases where material is limited, or where the material/specimens are difficult to handle, as is the case for irradiation experiments. However, it is known that sub-sized specimens...
Proceedings Papers

Proc. ASME. PVP2023, Volume 2: Computer Technology & Bolted Joints; Design & Analysis, V002T03A043, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-105941
... Abstract Creep is a classic inelastic-strain accumulation mechanism of pressure components exposed to high temperature. Due to the long-term exposure, the residual life is usually checked accounting for the steady-state creep, namely the dominant regime in terms of contribution...
Proceedings Papers

Proc. ASME. PVP2023, Volume 2: Computer Technology & Bolted Joints; Design & Analysis, V002T03A029, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-106176
... Abstract The rules of ASME B&PV Section VIII Code provide (i) allowable tensile stress at elevated temperatures based on time duration of 100,000 hours; (ii) external pressure charts which do not account for reduction of buckling strength due to creep under short or long-term loads...
Proceedings Papers

Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A076, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-84897
... elevated temperature analysis and design structural integrity safety and reliability reactor/nuclear creep probability/probabilistic Abstract The UK government has committed to achieving “net-zero” carbon emissions by 2050. Advanced Modular Reactors (AMRs) are small Generation IV...
Proceedings Papers

Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A051, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-81135
... probabilistic structural integrity creep nuclear safety and reliability Abstract Next-generation Advanced Modular Reactors are expected to aid in the worldwide transition to net-zero emissions. However, these reactors are designed to operate at very high temperatures, which makes...
Proceedings Papers

Proc. ASME. PVP2022, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T02A011, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-78366
... creep relaxation bolted flange joints high temperature FEM formula experiment Abstract In the published standards, selection criteria for bolt materials for high temperature and high pressure environments (exceeding 540°C (1000°F) and 300 lb) has not been specified. In addition...
Proceedings Papers

Proc. ASME. PVP2022, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T03A035, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-84895
... design type 316L austenitic stainless steel creep creep-fatigue Proceedings of the ASME 2022 Pressure Vessels & Piping Conference PVP2022 July 17-22, 2022, Las Vegas, Nevada, USA PVP2022-84895 HIGH-TEMPERATURE DESIGN OF 700°C HEAT EXCHANGER IN A LARGE SCALE HIGHTEMPERATURE THERMAL ENERGY STORAGE...
Proceedings Papers

Proc. ASME. PVP2022, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T03A027, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-81247
... specimen to evaluate the mechanical performance under axial tensile loadings to study the failure mechanism. The lab-scaled PCHE specimens were tested under overpressure loads at room temperature, and pressure creep and pressure creep-fatigue loadings to mimic the realistic loading conditions observed...
Proceedings Papers

Proc. ASME. PVP2022, Volume 3: Fluid-Structure Interaction; High Pressure Technology, V003T05A016, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-84215
... on the Compact Flange example the design process and challenges related with high temperature conditions will be discussed. The definition of the critical temperature will be defined based on material creep properties. Design techniques used to predict long term connection behavior including bolt relaxation...
Proceedings Papers

Proc. ASME. PVP2022, Volume 4A: Materials and Fabrication, V04AT06A042, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-83888
... Abstract In this research, creep tests were carried out on ex-service 2.25Cr-1Mo steel under conditions more severe than those of service. The specimens were tested in a temperature range of 585°C up to 650°C and in a stress range of 65 MPa up to 120 MPa, leading to strain rates values...
Topics: Creep, Steel
Proceedings Papers

Proc. ASME. PVP2022, Volume 4A: Materials and Fabrication, V04AT06A027, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-84126
... Abstract Creep strength-enhanced ferritic (CSEF) steels are widely used in fossil power plants operated in many countries and life management for the components made of these materials are of critical importance for plant operators. In particular, failures in welded joints in softened heat...