Zobrazeno 1 - 10
of 500
pro vyhledávání: '"girth weld"'
Autor:
Liu, Quan, Wei, Renchao, Feng, Qingshan, Dai, Lianshuang, Huo, Xiaotong, Wang, Dongying, Yang, Zhiwen, Wang, Bei, Wang, Xiuyun, Wang, Chong, Wang, Yanjun
Publikováno v:
Anti-Corrosion Methods and Materials, 2024, Vol. 71, Issue 6, pp. 778-788.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/ACMM-04-2024-3008
Publikováno v:
Journal of Pipeline Science and Engineering, Vol 4, Iss 3, Pp 100183- (2024)
A theory model with two kinds of material, which are used to describe the axis stress strain relationship of the pipe segment and girth weld joints, is proposed for the pipeline axial deformation analysis, and a pipeline deformation diagram is compos
Externí odkaz:
https://doaj.org/article/0bfad41e038443d6805e4fa014b449ad
Publikováno v:
You-qi chuyun, Vol 43, Iss 3, Pp 316-323 (2024)
[Objective] This paper aims to present clarified axial stress solution formulas for epoxy steel sleeve repaired and reinforced pipelines subjected to axial forces. [Methods] A mechanical model was first established to express simplified stress charac
Externí odkaz:
https://doaj.org/article/ba5249ababfa46b598afbada6d60869a
Autor:
Ce Wang, Chengning Li, Lianshuang Dai, Xiaocong Yang, Jiawei Han, Shaohua Cui, Zhenwen Yang, Xinjie Di
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 3096-3107 (2024)
Brittle fracture of girth weld metal is the main failure form of high strength steel oil and gas pipeline facilities, which is related to the deterioration of mechanical properties of weld metal at low temperature, especially the fracture toughness.
Externí odkaz:
https://doaj.org/article/cf588cd8735449cb950228d92f4f3c48
Publikováno v:
Journal of Materials Research and Technology, Vol 22, Iss , Pp 3311-3318 (2023)
Tensile tests were carried out on X80 steel girth welds with four different parameters (no deviation of welding parameters, inadequate number of welding layers, inadequate preheating temperature and inadequate interpass temperature) under automatic w
Externí odkaz:
https://doaj.org/article/f6eb7f4e9c4541348bb9b62fcb05ac1a
Autor:
FENG Qingshan
Publikováno v:
You-qi chuyun, Vol 41, Iss 11, Pp 1235-1249 (2022)
Nowadays, failure of girth weld is a main risk factor for the operation of high-grade long-distance pipelines.Through the analysis on girth welds of failed pipelines, it is found that the strength of girth welds lower than that of the pipe body is on
Externí odkaz:
https://doaj.org/article/ccfd63d153c345659a421135081a9a21
Publikováno v:
Nuclear Engineering and Technology, Vol 54, Iss 11, Pp 4072-4083 (2022)
Ultrasonic impact treatment (UIT) is carried out on the Ni-based alloy stainless steel pipe gas tungsten arc welding (GTAW) girth weld, the differences of microstructure, microhardness and shear strength distribution of the joint before and after ult
Externí odkaz:
https://doaj.org/article/013f016282ff4fc39351aec88468dd57
Autor:
Xinwei ZHAO, Gaofeng WANG, Fengping YANG, Qiang BAI, Yinglai LIU, Guodong XIAN, Baolong SUN, Xianghui NIE, Yan XU
Publikováno v:
You-qi chuyun, Vol 41, Iss 10, Pp 1141-1149 (2022)
In recent years, the repair technology of type-B sleeves has been widely used for the hazard control of pipeline girth welds. However, the prominent problems such as the unreasonable geometrical dimension of sleeve and the delayed cracking of fillet
Externí odkaz:
https://doaj.org/article/40ab929d82ae4741847b60716790ab76
Publikováno v:
Frontiers in Materials, Vol 10 (2023)
Hydrogen enrichment induced by pipeline welding residual stress is a key issue affecting the safe service of hydrogen pipelines. In order to explore the influence of welding residual stress on hydrogen diffusion and the effect of heat treatment, an X
Externí odkaz:
https://doaj.org/article/41deecbddb4641a685b5353d6d06928d
Autor:
Lianshuang Dai, Haidong Jia, Fulai Yang, Shichao Zhang, Zheng Zhang, Qingshan Feng, Yongbin Que, Yi Wu
Publikováno v:
Materials Research Express, Vol 11, Iss 5, p 056504 (2024)
This work aims to study the effect of pre-strain on the fracture behavior of X80 pipeline girth weld joint, a comprehensive analysis was conducted on the microstructure and mechanical properties of the girth weld before and after pre-strain treatment
Externí odkaz:
https://doaj.org/article/c848a9243322434c84d85ee674073c80