Results 61 to 70 of about 806,157 (210)

Strain model and experimental study of elastic viscoplastic for crack-tip zone of X80 steel pipe

Journal of Pipeline Science and Engineering, 2022
The mechanical state of the process zone at the crack-tip is one of the main factors that affect crack initiation and growth in the long-term safe operation of oil and gas pipelines. Many tests showed that the stress and strain fields in the fracture-tip
Shaohua Dong, Feng Li, Donghua Peng, Hang Zhang, Shiwen Guo, Haotian Wei, Xuan Sun, Yasir Mukhtar   +7 more
doaj   +1 more source

Microbiologically influenced corrosion in aluminium alloys and premier techniques for comprehensive identification and characterization across diverse metal types

Journal of Chemical Technology &Biotechnology, Volume 100, Issue 6, Page 1143-1158, June 2025.
Abstract Microbiologically influenced corrosion (MIC) is acknowledged as a significant type of corrosion due to its extensive impact on metal/alloy surfaces. As MIC accounts for 20% of all corrosion instances, it is a critical factor causing service failure of engineering materials such as steel and aluminium alloy.
Brinda, M S Divyashree, Suma A Rao, Padmalatha Rao, Lavanya Mulky   +4 more
wiley   +1 more source

Quenching Temperature‘s Impact on the Microstructure and Mechanical Properties of X80 Pipeline Steel

, 2011
The state study on mechanical properties’ changes of X80 steel at different quenching temperature. The results showed that the quenching temperature is 1000 °C, X80 Austenite grain coarsening is serious, leading to the production of coarse lath bainite ...
Yong Jie Ma, Xi Lu Liu, Guang Liang Zhang   +2 more
core   +1 more source

Effect of Nb Content and Second Heat Cycle Peak Temperatures on Toughness of X80 Pipeline Steel

, 2023
The microstructure evolution and variation of impact toughness in the heat-affected zone (HAZ) of X80 pipeline steel with different Nb content under different peak temperatures in the secondary thermal cycle were studied through welding thermal ...
Yaobin Yang, Xin Li, Xiaodong He, Qiang Chi, Weiwei Li, Yuefeng Chen, Lihua Qi   +6 more
core   +1 more source

Hydrogen Embrittlement Sensitivity of X80 Pipeline Steel Welded Joints in Hydrogen Environment [PDF]

Cailiao Baohu
In order to explore the changes in fracture mechanical properties of pipeline steel welded joints in hydrogen environment, the notched tensile in-situ hydrogen charging method was used to study the hydrogen embrittlement susceptibility of X80 steel base ...
LI Tianlei, LI Ke, SHI Daiyan, FENG Min, YANG Zhiwen, CHEN Yingfeng, WANG Xiuyun, LIN Yuanhua, YU Zifeng
doaj   +1 more source

Austenite decomposition in an X80 linepipe steel

, 2011
The final microstructure and resulting mechanical properties in the heat-affected zone (HAZ) of welded linepipes are predominantly determined by austenite decomposition during cooling after welding processes. Thus, a full understanding of continuous cooling transformation of austenite is a key step toward improving the overall performance of linepipes.
openaire   +1 more source

Simulation of Natural Gas Pipeline Networks Based on Roughness Optimization Algorithm and Global Mesh Refinement

Energy Science &Engineering, Volume 13, Issue 4, Page 1567-1576, April 2025.
A new numerical simulation method is developed for natural gas pipeline systems based on roughness optimization and global mesh refinement, coupled with the measured data of SCADA system. The accuracy of the proposed method is verified by the actual pipeline examples.
Yi Yang
wiley   +1 more source

Corrosion effect of Bacillus cereus on X80 pipeline steel in a Beijing soil environment

, 2018
The corrosion of X80 pipeline steel in the presence of Bacillus cereus (B. cereus) was studied through electrochemical and surface analyses and live/dead staining.
Song, Dongdong, Ding, De, Xu, Dake, Liu, Zhiyong, Du, Cuiwei, Li, Xiaogang, Zhang, Dawei, Wan, Hongxia   +7 more
core   +1 more source

Electrochemical Investigation of Corrosion of X80 Steel under Elastic and Plastic Tensile Stress in CO₂ Environment

Metals, 2018
An investigation into the electrochemical corrosion behavior of X80 pipeline steel under different elastic and plastic tensile stress in a CO2-saturated NaCl solution has been carried out by using open-circuit potential, potentiodynamic polarization ...
Wei Wu, Hailong Yin, Hao Zhang, Jia Kang, Yun Li, Yong Dan   +5 more
doaj   +1 more source

Stress corrosion cracking behavior of X80 pipeline steel under alternating current, Desulfovibrio desulfurican and cathodic protection potential

Journal of Materials Research and Technology, 2023
The stress corrosion cracking (SCC) behavior of X80 pipeline steel under Desulfovibrio desulfurican (D. desulfurican), alternating current (AC) and cathodic protection (CP) was studied by the constant load tests and slow strain rate tensile (SSRT) test ...
Qi Fu, Qingyu Qin, Boxin Wei, Jin Xu, Changkun Yu, Cheng Sun   +5 more
doaj   +1 more source