International Journal of Pressure Vessels and Piping最新文献_第10页

Buckling capacity of spherical shells with local thickness reduction under radial ring load 径向环载荷作用下局部减厚球壳的屈曲能力

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-18 DOI: 10.1016/j.ijpvp.2025.105441

Song Zhou , Zhongwei Zhao , Zhancai Lao , Hui Gao

引用次数: 0

The precipitation and coarsening behaviors of Cu-rich particles and the effect on the hardness of S30432 tube after aging and creep at elevated temperatures 高温时效和蠕变后富cu颗粒的析出和粗化行为及其对S30432管硬度的影响

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-18 DOI: 10.1016/j.ijpvp.2025.105443

Renyuan Zhou , Yuntong Liu , Lihui Zhu

{"title":"The precipitation and coarsening behaviors of Cu-rich particles and the effect on the hardness of S30432 tube after aging and creep at elevated temperatures","authors":"Renyuan Zhou , Yuntong Liu , Lihui Zhu","doi":"10.1016/j.ijpvp.2025.105443","DOIUrl":"10.1016/j.ijpvp.2025.105443","url":null,"abstract":"<div><div>The precipitation and coarsening behaviors of Cu-rich particles and the effect on the hardness of S30432 tube after aging and creep for up to 25848 h at the elevated temperatures were systematically investigated by the means of transmission electron microscopy (TEM), three-dimensional atom probe (3DAP) and Vickers hardness measurement. Results show that Cu-rich particles form rapidly during short-term aging and creep at high temperature, and they are always coherent with the γ-matrix in S30432 steel. Cu-rich particles coarsen slowly, and they are still very fine even after 25848 h of creep. The coarsening of Cu-rich particles in S30432 steel follows the diffusion-controlled Lifshitz-Slyozov-Wagner (LSW) theory, and the coarsening activation energy was estimated to be 238.87 kJ/mol. Increasing temperature effectively increases the coarsening rate of Cu-rich particles by promoting the diffusion of Cu atoms. The coherent relationship between Cu-rich particles and γ-matrix leads to low interfacial energy of Cu-rich particle/γ-matrix interface. Based on the experimental results and our former investigations, the interfacial segregation of Mn and Al retards the coarsening of Cu-rich particles by not only decreasing the interfacial energy but also acting as a barrier for the diffusion of Cu atoms. With increasing the time, the retarding effect increases due to the enhanced interfacial segregation of Mn and Al. Cu-rich particles tend to coarsen more quickly during creep than aging in S30432 steel. The precipitation and coarsening behaviors of Cu-rich particles play a vital role in the hardness variation of S30432 steel, appropriate addition of Cu, Mn and Al may be useful for promoting the precipitation and controlling the coarsening of Cu-rich particles to further optimize the strength at the elevated temperature.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105443"},"PeriodicalIF":3.0,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantitative study on magnetic flux leakage internal detection signal of defects on the outer wall of bimetal composite pipes 双金属复合管外壁缺陷漏磁内测信号的定量研究

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-17 DOI: 10.1016/j.ijpvp.2025.105438

Tengjiao He , Hanyu Zhong , Kexi Liao , Jiancheng Liao , Shuai Zhao , Guoxi He , Jiezhen Zhang

{"title":"Quantitative study on magnetic flux leakage internal detection signal of defects on the outer wall of bimetal composite pipes","authors":"Tengjiao He , Hanyu Zhong , Kexi Liao , Jiancheng Liao , Shuai Zhao , Guoxi He , Jiezhen Zhang","doi":"10.1016/j.ijpvp.2025.105438","DOIUrl":"10.1016/j.ijpvp.2025.105438","url":null,"abstract":"<div><div>Bimetal composite pipes are widely used in oil and gas gathering pipelines due to their exceptional anti-corrosion and high-pressure resistance properties. However, the magnetic flux leakage (MFL) internal detection device for single-layer pipes is unsuitable for the bimetal composite pipe. It is difficult to detect the location and size of pipe defects in the outer layer. To solve the problem of poor detection performance for the bimetal composite pipe, this paper conducted a series of studies. Firstly, in this paper, the multi-layer media magnetic dipole model for bimetal composite pipes is established. Then, the influence of the thickness and permeability of the inner layer on the MFL signal of the outer wall defects is quantitatively studied. What's more, a MFL detection simulation model for bimetal composite pipes is established, and the detection rate of defects on the outer wall of bimetal composite pipes is improved by optimizing the design of the magnetization device. Finally, a defect size inversion method in the outer layer of bimetal composite pipes is proposed, which is validated by an indoor experimental test. The results indicate that compared to the case with the inner layer, the amplitude of axial and radial MFL signals raise by 74 % and 76 % respectively in the absence of an inner layer pipeline. The amplitude of the MFL signal of the outer wall defect decreases exponentially as the thickness and relative magnetic permeability of the inner layer increase. After optimizing the magnetization device, the magnetic induction intensity of the outer layer is increased by 29 %, and the detection rate of defects is increased by 37 %. The maximum error of the defect size inversion model is 6.4 %, which meets the requirements of engineering applications.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105438"},"PeriodicalIF":3.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing the butt-weld process of pipes based on the inherent strain approach 基于固有应变法的管道对接焊工艺优化

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-17 DOI: 10.1016/j.ijpvp.2025.105439

Mohammad Jafari Najafi, Amir Khosravifard, Ali Nayebi

{"title":"Optimizing the butt-weld process of pipes based on the inherent strain approach","authors":"Mohammad Jafari Najafi, Amir Khosravifard, Ali Nayebi","doi":"10.1016/j.ijpvp.2025.105439","DOIUrl":"10.1016/j.ijpvp.2025.105439","url":null,"abstract":"<div><div>Welded parts often suffer from distortion and residual stresses, leading to assembly inaccuracies and increased costs. To enhance the quality of welded structures, it is essential to predict and mitigate these issues. Traditionally, time-consuming thermo-elastoplastic (TEP) analyses are used to estimate welding stresses and distortions. In the present study, the theory of inherent strain and the elastic finite element method have been employed for accurate and rapid prediction of distortion and residual stresses in butt-welded pipes. Furthermore, to improve the overall weld quality, the genetic algorithm is used to optimize the main arc welding parameters such as welding power and the ratio of input heat to pipe thickness and the number of intermittent welding sections. The accuracy of the analyses is validated by comparing the simulation results with the FEM and experimental results of [1]. The optimization of the welding process was able to reduce the residual stress and deformation by 5 % and 9 %, respectively. The inherent strain method has been shown to reduce the computational cost of the analyses by more than 95 %, compared to the conventional TEP analysis, while preserving an acceptable accuracy in terms of the predicted residual stresses and deformations.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105439"},"PeriodicalIF":3.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical assessment of bolt-tightening procedures in HDPE-steel flange assemblies hdpe钢法兰组件螺栓紧固过程的数值评估

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-09 DOI: 10.1016/j.ijpvp.2024.105429

Sherif Ezzeldin , Reem Aladawi , Ahmed Shahin , Imad Barsoum

{"title":"Numerical assessment of bolt-tightening procedures in HDPE-steel flange assemblies","authors":"Sherif Ezzeldin , Reem Aladawi , Ahmed Shahin , Imad Barsoum","doi":"10.1016/j.ijpvp.2024.105429","DOIUrl":"10.1016/j.ijpvp.2024.105429","url":null,"abstract":"<div><div>The interaction between elastic materials, particularly when joining materials with vastly different stiffness, such as high density polyethylene (HDPE) pipes and steel flanges, can significantly influence the bolt pre-load and tightness of the bolted joint. This study investigates the impact of elastic interaction on bolt pre-load in assemblies of HDPE pipes and steel flanges, using finite element analysis (FEA). The work compares the Tetra-Parametric Assembly Method (TAM) with the Elastic Interaction Coefficient Method (EICM) to enhance the bolt tightening procedure in such assemblies. FEA simulations reveal that TAM achieves more uniform load distribution and contact pressure compared to EICM. The study evaluates six different configurations, including both 8-bolt and 28-bolt models, highlighting that assemblies involving HDPE and steel exhibit higher elastic interaction and flange rotation than those with only steel components. Key findings include that TAM effectively predicts the behavior of HDPE and steel assemblies. The results indicate that larger sizes and more bolts increase elastic interaction, which is particularly pronounced in cases with HDPE and steel due to the significant stiffness contrast between the two materials. The 30-30-40 tightening rule proves effective for HDPE-to-steel flange connections, suggesting that TAM is a robust method for achieving uniform contact pressure in such assemblies. This research contributes to developing more reliable designs in industrial applications requiring HDPE and steel flange assemblies.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105429"},"PeriodicalIF":3.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Degradation behavior of a 12 % Cr tempered martensite ferritic steel after 20 years of service 12% Cr回火马氏体铁素体钢使用20年后的退化行为

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-09 DOI: 10.1016/j.ijpvp.2025.105437

Yinsheng He , SungYong Chang , BeomSin Kim , Wenyue Zheng , Zhangjian Zhou

{"title":"Degradation behavior of a 12 % Cr tempered martensite ferritic steel after 20 years of service","authors":"Yinsheng He , SungYong Chang , BeomSin Kim , Wenyue Zheng , Zhangjian Zhou","doi":"10.1016/j.ijpvp.2025.105437","DOIUrl":"10.1016/j.ijpvp.2025.105437","url":null,"abstract":"<div><div>The 12 % Cr tempered martensite ferritic steel, X20CrMoV12-1, is an important heat exchanger material for boiler tubes used in fossil-fired power plants over the past three decades. Understanding the degradation behavior of these steels after long-term service is critical, as it directly determines the safe operation and life extension of power plants. However, most investigations have focused on the properties and microstructure based on the laboratory-accelerated test, while the long-term serviced materials are rarely reported. Here, an X20CrMoV12-1 boiler tube that has been serviced as a superheater for 20 years was investigated in terms of hardness, tensile strength and creep rupture tests with corresponding microstructural analysis, aiming to understand its degradation behavior. We found the stability of microhardness and a decrease in room and high temperature tensile strength by 13 % and 17 %, respectively. Importantly, the creep rupture life of the serviced tube is reduced by ∼80 % at 600 °C, attributing to the significant decrease of dislocation density and unstable features of the coarse Laves phases. The microstructural investigation results showed no significant change in the dominant strengthening precipitates of M<sub>23</sub>C<sub>6</sub>, MX and tempered lath structures. However, microstructures of M<sub>23</sub>C<sub>6</sub>, Laves phase and substructures became unstable upon further creep at 600 °C, appearing as spheroidization, dissolution and rapid coarsening, respectively. These results suggested the overheating of the materials should be avoided during the afterward operation and life extension.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105437"},"PeriodicalIF":3.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of parameter uncertainty upon complexity of creep behavior of P91 steel 参数不确定性对P91钢蠕变行为复杂性的影响

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-09 DOI: 10.1016/j.ijpvp.2025.105436

Siyu Ren , Xinbao Liu , Lin Zhu , Ping Fan , Chaolu Song , Kai Zhang , Jie Chen , Hongtao Chen

引用次数: 0

Post weld heat treatment of bisalloy 80 steel: Mechanics and industry safety code compatibility 80双合金钢焊后热处理：力学与工业安全规范的相容性

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-07 DOI: 10.1016/j.ijpvp.2025.105434

Houman Alipooramirabad , Anna Paradowska , Mark Reid , Reza Ghomashchi

{"title":"Post weld heat treatment of bisalloy 80 steel: Mechanics and industry safety code compatibility","authors":"Houman Alipooramirabad , Anna Paradowska , Mark Reid , Reza Ghomashchi","doi":"10.1016/j.ijpvp.2025.105434","DOIUrl":"10.1016/j.ijpvp.2025.105434","url":null,"abstract":"<div><div>The present study utilized both in-situ and ex-situ neutron diffraction to evaluate the evolution of residual strains/stresses before, during and after Post-Weld Heat Treatment (PWHT) of quenched and tempered (Q&T) Bisalloy 80 steel welded by pulsed Gas Metal Arc Welding (GMAW-P). It was found that strain/stress relaxation mainly occurred during the reheating step with a high relaxation rate and steep slope (∼67 % of strain relaxation) while linear strain relief was observed during holding (soaking) time. Most of the strain relief occurred within the temperature range of 450°C–600 °C which is believed to be due to creep strain development occurring far earlier than the component reaching the isothermal holding temperature. The ex-situ neutron diffraction measurements were similar to in-situ results confirming the applied PWHT effectively mitigated the residual stresses (the maximum longitudinal stress reduced to around 23 % of the weld metal yield strength).</div><div>The measurements were compared with existing literature data and the current fitness of safety assessment codes (BS7910 and R6). It was found that both assessment codes were conservative for both the transverse and longitudinal residual stresses in the region close to the weld toe. Furthermore, both standards may underestimate through-thickness residual stresses in the transverse direction.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105434"},"PeriodicalIF":3.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical study on the indentation response of mechanically lined pipe 机械衬管压痕响应的实验与数值研究

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-03 DOI: 10.1016/j.ijpvp.2025.105433

Lin Yuan , Jinwei He , Chuangyi Wang , Dongdong Ren

{"title":"Experimental and numerical study on the indentation response of mechanically lined pipe","authors":"Lin Yuan , Jinwei He , Chuangyi Wang , Dongdong Ren","doi":"10.1016/j.ijpvp.2025.105433","DOIUrl":"10.1016/j.ijpvp.2025.105433","url":null,"abstract":"<div><div>Mechanically lined pipe (MLP) has become a low-cost and reliable solution for transporting corrosive hydrocarbons and has been used in many onshore and offshore projects. During the long-term service period, MLP is susceptible to impacts from third-party foreign objects, which can lead to severe local denting and potential failure. The indentation response of MLP to these events is still not fully understood. This paper conducted an experimental and numerical study based on lined pipe specimens fabricated using a custom hydraulic expansion facility. The lined pipes, which have finished diameters of 50 mm, are composed of a carrier made of carbon steel Grade GB45 (AISI 1045) and a liner made of copper Grade T2. Four types of indenters, including spherical, cylindrical, wedge, and square shapes, are adopted to introduce dents into the specimens. The indentation experiment was also performed on single-wall counterpart pipes. The results show that different indenters lead to distinct liner separation profiles along the specimen's length. The axial strain distribution near the dent exhibits opposite behavior between the carrier and liner tubes. In addition, the mechanical contribution of the liner and the influence of carrier pipe thickness are also discussed.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105433"},"PeriodicalIF":3.0,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ratcheting behavior in SS316L concentric and eccentric reducers under cyclic axial load and constant internal pressure using DIC method 用DIC方法研究SS316L同心和偏心减速器在循环轴向载荷和恒内压作用下的棘轮行为

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-03 DOI: 10.1016/j.ijpvp.2025.105432

Ali Shahrjerdi, Mohammadreza Mirzabeygi

{"title":"Ratcheting behavior in SS316L concentric and eccentric reducers under cyclic axial load and constant internal pressure using DIC method","authors":"Ali Shahrjerdi, Mohammadreza Mirzabeygi","doi":"10.1016/j.ijpvp.2025.105432","DOIUrl":"10.1016/j.ijpvp.2025.105432","url":null,"abstract":"<div><div>This study uses experimental and numerical methods to examine the impact of average fatigue force, amplitude fatigue force, and internal pressure on the ratcheting behavior of SS316L concentric and eccentric reducers. The material of the samples was first verified through mechanical analyses. Subsequently, the samples were fatigue tested at controlled force and room temperature (25 °C), and strain reading was done at the critical points of the samples by the digital image correlation (DIC) method. Numerical simulations with Abaqus software were conducted to validate the experimental results, confirming the experimental tests' accuracy with an acceptable margin of error. Finally, after ensuring the reliability of the numerical results, the influence of the changes in the parameters mentioned above was numerically investigated. It was observed that as these variables increase, the ratcheting strain also increases in the axial and circumferential directions, with greater sensitivity to the increase in average force and amplitude force.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105432"},"PeriodicalIF":3.0,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0