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Journal articles on the topic 'Simulated HAZ'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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1

Liu, Yu, Ai Qing Ma, and Bin Feng. "Simulated HAZ Continuous Cooling Transformation of X90 Pipeline Steel." Materials Science Forum 850 (March 2016): 905–9. http://dx.doi.org/10.4028/www.scientific.net/msf.850.905.

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In this paper, the simulation heat affected zone (HAZ) continuous cooling transformation (SHCCT) curve of X90 pipeline steel was drew by using Gleeble 3500 simulator. The results show that the trend of hardening of the weld HAZ of X90 pipeline steel was moderate, and softening tendency was not significant. When cooling rate was between 1°C/s and 10°C/s, the microstructure of X90 pipeline steel weld HAZ were composed of granular bainite and lath bainite. The recommended welding heat input of X90 pipeline steel was between 21kJ/cm and 66.4kJ/cm, and the weld preheating temperature was controlled

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2

HA, JI-WOONG, JUNG-HAN SONG, HOON HUH, JI-HO LIM, and SUNG-HO PARK. "DYNAMIC MATERIAL PROPERTIES OF THE HEAT-AFFECTED ZONE (HAZ) IN RESISTANCE SPOT WELDING." International Journal of Modern Physics B 22, no. 31n32 (2008): 5800–5806. http://dx.doi.org/10.1142/s0217979208051194.

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This paper is concerned with a methodology to identify the dynamic material properties of the heat-affected zone (HAZ) near the base metal in a resistance spot weld process at various strain rates. In order to obtain the dynamic material properties of the HAZ in the spot-welded steel sheet, specimens are prepared to have similar material properties, hardness and microstructure to the actual HAZ. Such thermally simulated specimens are fabricated with the material thermal cycle simulator (MTCS) and compared with the real one for the hardness and microstructure. Dynamic tensile tests are then con

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3

Devaney, Ronan J., Heiner Oesterlin, Padraic E. O’Donoghue, and Sean B. Leen. "Cyclic plasticity and low cycle fatigue damage characterisation of thermally simulated X100Q heat affected zone." MATEC Web of Conferences 165 (2018): 03002. http://dx.doi.org/10.1051/matecconf/201816503002.

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This paper presents the cyclic plasticity and low cycle fatigue (LCF) damage characterisation of thermally simulated heat affected zone (HAZ) for API 5L X100Q weldments. Microstructures representative of the HAZ for two cooling rates are generated using a Gleeble thermomechanical simulator for manufacture of strain-controlled cyclic plasticity test specimens. The simulated HAZ specimens are subjected to a strain controlled test programme which examines the cyclic effects of strain-range and the tensile response at room temperature. A modified version of the Chaboche rate independent plasticity

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4

Lundin, C. D., and C. Y. P. Qiao. "Microstructural Investigation of the Weld HAZ in a Modified 800H Alloy." Journal of Engineering for Gas Turbines and Power 116, no. 3 (1994): 629–34. http://dx.doi.org/10.1115/1.2906866.

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Detailed metallographic investigations of Gleeble simulated HAZ samples in modified 800H were performed. Precipitate dissolution, gain growth, HAZ liquation and the hardness degradation behavior in modified 800H were also addressed. Results of this study agree with previous HAZ hot cracking and softening behavior evaluations.

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5

Chen, Zhong Bing, Qiu Hua Zhu, Jian Xing Song, and Yan Liu. "High Temperature Plasticity of TP347H Stainless Steel Welded Joint Heat Affected Zone." Key Engineering Materials 881 (April 2021): 19–24. http://dx.doi.org/10.4028/www.scientific.net/kem.881.19.

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Simulated Heat Affected Zone (HAZ) samples of TP347H stainless steel welded joint with 800-1380°C peak temperature thermal cycles were produced using Gleeble 3180 thermal mechanical simulator. 600°C constant speed tensile tests for simulated HAZ samples were carried out, and the precipitates of the simulated samples were analyzed by EDAX. The results show that the lowest Reduction of Area (RoA) was around 53% - 56% in 900-1150°C, which was about 15% lower than the maximum RoA in 800-1380°C. The reasons for decrease of HAZ high temperature plasticity were related to the precipitation of NbC. Th

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6

Gáspár, Marcell. "Effect of Welding Heat Input on Simulated HAZ Areas in S960QL High Strength Steel." Metals 9, no. 11 (2019): 1226. http://dx.doi.org/10.3390/met9111226.

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When the weldability of high strength steels is analyzed, it is the softening in the heat-affected zone (HAZ) that is mostly investigated, and the reduction of toughness properties is generally less considered. The outstanding toughness properties of quenched and tempered high strength steels cannot be adequately preserved during the welding due to the unfavorable microstructural changes in the HAZ. Relevant technological variants (t8/5 = 2.5–100 s) for arc welding technologies were applied during the HAZ simulation of S960QL steel (EN 10025-6) in a Gleeble 3500 physical simulator, and the eff

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7

Wang, Qing Feng, Cheng Jia Shang, R. D. Fu, Ya Nan Wang, and Wayne Chen. "Physical Simulation and Metallurgical Evaluation of Heat-Affected Zone during Laser Welding of Ultrafine Grain Steel." Materials Science Forum 475-479 (January 2005): 2717–20. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.2717.

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Two major challenges in relation to laser welding are abrupt change in metallurgical aspects and actual assessment of the mechanical properties due partly to very narrow heat affected zone (HAZ) and partly to high mechanical properties gradient. The rapid thermal cycle of laser welding imposed on the HAZ was physically simulated using a Gleeble™ dynamic simulator equipped with a special isothermal quenching device (ISO-Q™), and a relatively large volume of HAZ with a homogeneous microstructure was obtained. The thermal cycles were determined from actual laser welding followed by laser temperin

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8

Pratap, Singh, and Judit Kovácsb. "Comparative HAZ softening analysis of three different automotive aluminium alloys by physical simulation." Zavarivanje i zavarene konstrukcije 66, no. 1 (2021): 23–38. http://dx.doi.org/10.5937/zzk2101023p.

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The development of high strength aluminium alloy has revolutionized the automotive industry with innovative manufacturing and technological process to provide high-performance components, weight reduction and also diversified the application field and design consideration for the automotive parts that work under severe conditions, but the selection of proper production parameters is most challenging task to get excellent results. Growing industrial demand of aluminium alloys led to the development of new welding technologies, processes and studies of various parameters effects for its intended

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9

Mohammadi, Farzad, Faysal Fayez Eliyan, and Akram Alfantazi. "Corrosion of simulated weld HAZ of API X-80 pipeline steel." Corrosion Science 63 (October 2012): 323–33. http://dx.doi.org/10.1016/j.corsci.2012.06.014.

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10

Wu, Rui, Rolf Sandstro¨m, and Facredin Seitisleam. "Influence of Extra Coarse Grains on the Creep Properties of 9 Percent CrMoV (P91) Steel Weldment." Journal of Engineering Materials and Technology 126, no. 1 (2004): 87–94. http://dx.doi.org/10.1115/1.1631025.

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With modern welding methods, satisfactory microstructures in 9%CrMoV (P91) steel can be obtained with a modest variation in hardness and prior austenite grain size. However, there is always a risk that significant deviations in the properties can be obtained, if the welding parameters are not optimized. In the present paper the role of extra coarse grains in the heat affected zone (HAZ) has been studied. Creep tests were carried out at 600°C for parent metal, weld metal, cross weld, simulated extra coarse grained HAZ, and simulated intercritical HAZ of a 9%CrMoV (P91) steel. The parent metal,

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11

Niu, Ji Tai, Wei Feng Huang, Jing Jun Xu, and Yong Liang Guo. "Study on Property and Microstructure in HAZ of High-Strength Abrasion-Resistant Steel." Key Engineering Materials 306-308 (March 2006): 947–52. http://dx.doi.org/10.4028/www.scientific.net/kem.306-308.947.

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In this paper, a type of the high-strength abrasion-resistant steel-NM360 has been studied with the aid of the modern physical simulation technology to solve the problem of its poor weldability. In the experiment, the welding thermal cycles under different cooling conditions with the peak heating temperature of 1320oC were simulated via the Gleeble-1500D thermal/mechanical simulator. The SH-CCT diagram of NM360 has been established by investigating the microstructure transformation course and the hardness of the welded heat-affected zone (HAZ) near fusion line during different cooling process.

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12

Lojen, Gorazd, and Tomaž Vuherer. "Optimization of PWHT of Simulated HAZ Subzones in P91 Steel with Respect to Hardness and Impact Toughness." Metals 10, no. 9 (2020): 1215. http://dx.doi.org/10.3390/met10091215.

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Appropriate post weld heat treatment (PWHT) is usually obligatory when creep resistant steels are welded for thermal power plant components that operate at elevated temperatures for 30-40 years. The influence of different PWHTs on the microstructure, hardness, and impact toughness of simulated heat affected zone (HAZ) subzones was studied. Thereby, coarse grained HAZ, two different fine grained HAZ areas, and intercritical HAZ were subjected to 20 different PWHTs at temperatures 740–800 °C and durations 0.5–8 h. It was found that the most commonly recommended PWHT, of 3 h or less at 760 °C, is

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13

Celin, Roman, Jaka Burja, and Gorazd Kosec. "A comparison of as-welded and simulated heat affected zone (HAZ) microstructures." Materiali in tehnologije 50, no. 3 (2016): 455–60. http://dx.doi.org/10.17222/mit.2016.006.

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14

Koseki, Toshihiko, Hiroki Kato, Masanori Tsutsumi, Keiichiro Kasai, and Junya Inoue. "Ferrite transformation from oxide–steel interface in HAZ-simulated C–Mn steel." International Journal of Materials Research 99, no. 4 (2008): 347–51. http://dx.doi.org/10.3139/146.101643.

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15

Wang, Qing Feng, Cheng Jia Shang, Ya Nan Wang, and Wayne Chen. "Microstructure and Mechanical Properties of Simulated Heat Affected Zone of an Ultrafine Grain Steel Laser Weld." Key Engineering Materials 353-358 (September 2007): 2021–24. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.2021.

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In this paper, the very rapid thermal cycles imposed on an ultrafine grain steel plate were successfully simulated using a Gleeble™ simulator. The simulated heat affected zone was obtained suitable for Vickers hardness and impact toughness examination of laser weld that originally bear a narrow zone with high hardness gradient. Effect of preheat treatment on the mechanical behavior of laser HAZ was estimated. It was indicated that the simulated HAZ was composed of fine martensitic ferrite laths with average width in 65nm and 175nm in the case of preheat at 200°C and not, respectively. The lath

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16

Sisodia, Raghawendra, Marcell Gáspár, and Noureddine Guellouh. "HAZ Characterization of Automotive DP Steels by Physical Simulation." International Journal of Engineering and Management Sciences 4, no. 1 (2019): 478–87. http://dx.doi.org/10.21791/ijems.2019.1.59.

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DP steels were extensively used in the vehicles industry due to its extraordinary combined properties of strength, ductility, formability and weldability which contributed great significance in reducing strength to weight ratio and CO2 emission. High strength steel i.e. DP steels (3 different grades) were experimentally investigated and thermophysically simulated using Gleeble 3500 simulator to determine softening and hardening in heat affected zone. Samples were heated to different peak temperatures (1350 °C, 950 °C, 775 °C and 650 °C), two cooling time (t8.5/5 = 5 s and 30 s) and Rykalin 2D

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17

Wei, Yan Hong, Yan Li Xu, Zhi Bo Dong, and Ji Lin Xiao. "Three Dimensional Monte Carlo Simulation of Grain Growth in HAZ of Stainless Steel SUS316." Key Engineering Materials 353-358 (September 2007): 1923–26. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.1923.

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The stainless steel SUS316 grain growth process in heat affected zone (HAZ) of gas tungsten arc welding (GTAW) process is studied with Monte Carlo (MC) simulation. The heat transfer and fluid flow model provides the thermal history and thermal distribution of the weldments for MC grain growth simulation. The grain growth evolution is simulated both in isothermal and in HAZ environment. The simulating results show clearly the “thermal pinning” effect on the grain growth evolution in HAZ compared with the isothermal results.

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18

Sisodia, Raghawendra Pratap Singh, Marcell Gáspár, Béla Fodor, and László Draskóczi. "Simulation and Experimental Based Analysis of the Laser Beam Welding of DP Steels." Advanced Materials Research 1157 (February 2020): 73–82. http://dx.doi.org/10.4028/www.scientific.net/amr.1157.73.

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In this paper, heat affected zone characteristics of DP1000 steels was investigated during diode laser beam welding (LBW). A butt-welded joint of specimen in dimension of 300 x 150 mm each (according to EN15614-11:2002) with 1 mm thickness is used for the experimental purpose. The welding thermal cycle and the cooling circumstances in the HAZ was determined by real experiment and the physical simulation. A Gleeble 3500 thermo-physical simulator was used to physically simulate the coarse grain heat affected zone (CGHAZ) on the base material specimens by the utilization of the thermal cycles for

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19

Stadler, Manfred, Ronald Schnitzer, Martin Gruber, Katharina Steineder, and Christina Hofer. "Microstructure and Local Mechanical Properties of the Heat-Affected Zone of a Resistance Spot Welded Medium-Mn Steel." Materials 14, no. 12 (2021): 3362. http://dx.doi.org/10.3390/ma14123362.

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The properties of the heat-affected zone (HAZ) are reported to have a great influence on the mechanical performance of resistance spot welded advanced high strength steels. Therefore, in the present work, the HAZ of a medium-Mn steel is characterized regarding its microstructure and its mechanical properties depending on the distance to the fusion zone (FZ). In order to obtain the local mechanical properties of the HAZ, samples were heat-treated in a joule-heating thermal simulator using different peak temperatures to physically simulate the microstructure of the HAZ. By comparing the microstr

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20

Wojnowski, D., Y. K. Oh, and J. E. Indacochea. "Metallurgical Assessment of the Softened HAZ Region During Multipass Welding." Journal of Manufacturing Science and Engineering 122, no. 2 (1997): 310–15. http://dx.doi.org/10.1115/1.538920.

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CrMoV steels are used in high temperature and high stress sections of power plant members; their good creep resistance is impaired by welding done during fabrication of assemblies and weld repair of service damaged rotors. Occurrence of a “softening” (“tempered”) region in the grain refined heat-affected zone/intercritical heat-affected zone, has become the limiting factor in the life extension of weld repaired high pressure/intermediate pressure steam turbine rotors. This study focuses on the effect that multiple thermal cycles have on the development of this softened region. Work was conduct

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21

Zhang, Shi Xing, and Gang Yi Cai. "Simulation of Microstructure and Grain Size in Welding Heat Affected Zone Using Monte Carlo Method." Advanced Materials Research 194-196 (February 2011): 121–26. http://dx.doi.org/10.4028/www.scientific.net/amr.194-196.121.

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In this paper, modeling, procedure and algorithm using Monte Carlo (MC) technology were investigated respectively to simulate grain size and microstructure . First, two different kinetic model were defined by both experimental and statistics method. Then the procedure and algorithm were worked out based on MC technology. Thirdly, the grain growth process in HAZ was simulated, which has great influence on grain growth in HAZ. The result of the simulation demonstrates the grain growth process dynamically. Good agreement between MC simulation results and the experimental results was obtained whic

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22

Chung, Yong-Keun, Cheol-Hong Joo, Jong-Jin Park, Ik-Man Park, and Hyo-Jin Kim. "Quantification of Creep Cavitation in Welded Joint and Evaluation of Material Characteristics of Simulated Heat-Affected Zone in X 20 CrMoV 12 1 Steel." Journal of Pressure Vessel Technology 123, no. 1 (2000): 112–17. http://dx.doi.org/10.1115/1.1333094.

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X 20 CrMoV 12 1(DIN 17 175) steel has been used for components subjected to high temperature in power plants and chemical and petroleum industries. Therefore, extensive studies have been made on this steel. However, these studies focused mainly on the base metal, and few studies on the welded joint have been reported. Actually, a large number of failures have occurred at the welded joint, so there is increasing need to investigate the characteristics of X 20 CrMoV 12 1 weldment. In this study, the interrupted and creep rupture tests were carried out and quantification of the creep damage was a

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23

GUI, Chibin, Qi CHEN, and Kun CUI. "Formulation of grain growth diagram in simulated weld HAZ of Ti-microalloyed steel." Acta Metallurgica Sinica (English Letters) 22, no. 4 (2009): 308–12. http://dx.doi.org/10.1016/s1006-7191(08)60103-9.

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24

Falkenreck, Thora, Arne Kromm, and Thomas Böllinghaus. "Investigation of physically simulated weld HAZ and CCT diagram of HSLA armour steel." Welding in the World 62, no. 1 (2017): 47–54. http://dx.doi.org/10.1007/s40194-017-0511-4.

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Zhang, Ming Yue, Yuan Nie, Qing Ying Wang, and Hui Chen. "Effect of Welding Heat Cycle Peak Temperature and Heat Input on HAZ Grain Size of SMA490BW Corrosion Resistance Steel." Advanced Materials Research 602-604 (December 2012): 415–20. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.415.

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Welding thermal cycle of SMA490BW corrosion resistance steel with different heat inputs were simulated by using Gleeble-3500 thermo-mechanical simulator to investigate the grain size of the heat affected zone (HAZ). Results show that welding heat cycle peak temperature has great influence on the grain size with the same other conditions, the higher peak temperature is the bigger grain size is; in different welding thermal cycling conditions, line energy affects grain size differently; specimens which experienced two thermal cycle have smaller grain size than which experienced just one thermal

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26

HATANO, Hitoshi. "Effect of Boron on Microstructure and Toughness of Simulated HAZ of Low Carbon Bainitic Steel." Tetsu-to-Hagane 89, no. 3 (2003): 362–68. http://dx.doi.org/10.2355/tetsutohagane1955.89.3_362.

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27

Nie, Yuan, Li Jun Wang, Chuan Ping Ma, et al. "Effect of Heat Input on HAZ Properties and Microstructure of SMA490BW Corrosion Resistance Steel." Advanced Materials Research 337 (September 2011): 517–21. http://dx.doi.org/10.4028/www.scientific.net/amr.337.517.

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Welding thermal cycle of SMA490BW corrosion resistance steel with different heat inputs were simulated by using Gleeble-3500 thermo-mechanical simulator to investigate the microstructure and impact toughness of the heat-affected zone (HAZ). The results shows that the microstructure of the coarse-grain heat affected zone(CGHAZ) is mainly composed of lath bainites and the surpass critical coarse-grain heat affected zone(SCCGHAZ) consists mainly of granular bainites with a small content of ferrites. The grain size increased with the heat input increasing, Besides, the impact energy of the surpass

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28

Zhang, Shi Xing, and Gang Yi Cai. "A Study of the Microstructure and Grain Size at the Welding Heat Affected Zone of an Industrial Pure Aluminum." Advanced Materials Research 97-101 (March 2010): 3247–51. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.3247.

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In this paper, Monte Carlo (MC) technology with welding experiments and thermal simulation experiments were introduced to simulate the grain growth process in welding heat affected zone(HAZ) of 1060 industrial pure aluminum. First, a kinetic model was defined by both experimental and statistics method. Then the thermal cycle was calculated and at the same time the simulation program was worked out based on MC technology. Thirdly, the grain growth process in HAZ was simulated during different welding heat input, which has great influence on grain growth in HAZ. The result of the simulation demo

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29

Liu, Yue, Hui Chen, Yan Liu, and Zongqiu Hang. "Simulated HAZ continuous cooling transformation diagram of a bogie steel of high-speed railway." International Journal of Modern Physics B 31, no. 16-19 (2017): 1744038. http://dx.doi.org/10.1142/s0217979217440386.

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Simulated HAZ continuous cooling transformation (SH-CCT) diagram presents the start and end points of phase transformation and the relationships of the microstructures of HAZ, temperature and cooling rates. It is often used to assess the weldability of materials. In this paper, a weathering steel Q345C which is widely used in the bogies manufacturing was studied. The cooling times from 800[Formula: see text]C to 500[Formula: see text]C ([Formula: see text]) were from 3 s to 6000 s, aiming to study the microstructures under different cooling rates. Different methods such as color metallography

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Ferreira, Dario, Antonio Alves, Rubelmar Cruz Neto, Thiago Martins, and Sérgio Brandi. "A New Approach to Simulate HSLA Steel Multipass Welding through Distributed Point Heat Sources Model." Metals 8, no. 11 (2018): 951. http://dx.doi.org/10.3390/met8110951.

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Mechanical properties of welded joints depend on the way heat flows through the welding passes. In multipass welding the reheating of the heat affected zone (HAZ) can form local brittle zones that need to be delimited for evaluation. The difficulty lies in the choice of a model that can simulate multipass welding. This study evaluated Rosenthal’s Medium Thick Plate (MTP) and the Distributed heat Sources (DHS) of Mhyr and Gröng models. Two assumptions were considered for both models: constant and temperature-dependent physical properties. It was carried out on a multipass welding of an API 5L X

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31

Liao, J., K. Ikeuchi, and F. Matsuda. "Effect of cooling time on HAZ toughness and microstructure: Simulated HAZ toughness of low‐alloy SQV‐2A pressure vessel steel (1st report)." Welding International 10, no. 7 (1996): 552–58. http://dx.doi.org/10.1080/09507119609549046.

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FUJIYAMA, Kazunari, Takashi ISEKI, Atsushi KOMATSU, and Nagatoshi OKABE. "CREEP LIFE ASSESSMENT OF 2.25Cr-1Mo PIPING STEEL AND OF ITS SIMULATED HAZ MATERIAL." Journal of the Society of Materials Science, Japan 46, no. 12Appendix (1997): 237–43. http://dx.doi.org/10.2472/jsms.46.12appendix_237.

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Kim, Sanghoon, Donghwan Kang, Tae-Won Kim, Jongkwan Lee, and Changhee Lee. "Fatigue crack growth behavior of the simulated HAZ of 800MPa grade high-performance steel." Materials Science and Engineering: A 528, no. 6 (2011): 2331–38. http://dx.doi.org/10.1016/j.msea.2010.11.089.

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Lan, Liangyun, and Guoqing Shao. "Morphological evolution of HAZ microstructures in low carbon steel during simulated welding thermal cycle." Micron 131 (April 2020): 102828. http://dx.doi.org/10.1016/j.micron.2020.102828.

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HONDA, Takashi, Takuya FUKAHORI, Toshihide IGARI, Yasuharu CHUMAN, Takumi TOKIYOSHI, and Alan CF COCKS. "Creep damage analysis of simulated-HAZ notched bar specimens of modified 9Cr-1Mo steel." Mechanical Engineering Journal 4, no. 5 (2017): 16–00697. http://dx.doi.org/10.1299/mej.16-00697.

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Min, Ding. "Abnormal toughness characteristics and fracture model in simulated welding HAZ of 5%Ni Steel." Metallurgical Research & Technology 117, no. 4 (2020): 410. http://dx.doi.org/10.1051/metal/2020037.

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The toughness property of the coarse grained heat affected zone had become much worse since the large heat input welding was applied in HSLA for improving welding efficiency and reducing welding costs. Unlike previous investigations of the decreasing fracture toughness with heating time, the toughness of coarse grained heat affected zone increases in long heating time. Based on microstructure and mechanical properties, very remarkable impact toughness was obtained when the t8/5 was 80 s: toughness of 171 J. The toughness improvement initiates not from inclusions but directly from the microstru

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37

Barla, Nikki Archana, Prakriti Kumar Ghosh, Vinod Kumar, Nilesh Kumar Paraye, Ramkishor Anant, and Sourav Das. "Simulated stress induced sensitization of HAZ in multipass weld of 304LN austenitic stainless steel." Journal of Manufacturing Processes 62 (February 2021): 784–96. http://dx.doi.org/10.1016/j.jmapro.2020.12.061.

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Węglowski, M. St, M. Zeman, and A. Grocholewski. "Effect of Welding Thermal Cycles on Microstructure and Mechanical Properties of Simulated Heat Affected Zone for a Weldox 1300 Ultra-High Strength Alloy Steel." Archives of Metallurgy and Materials 61, no. 1 (2016): 127–32. http://dx.doi.org/10.1515/amm-2016-0024.

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In the present study, the investigation of weldability of ultra-high strength steel has been presented. The thermal simulated samples were used to investigate the effect of welding cooling time t8/5 on microstructure and mechanical properties of heat affected zone (HAZ) for a Weldox 1300 ultra-high strength steel. In the frame of these investigation the microstructure was studied by light and transmission electron microscopies. Mechanical properties of parent material were analysed by tensile, impact and hardness tests. In details the influence of cooling time in the range of 2,5 ÷ 300 sec. on

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39

Ma, Hongchi, Jinbin Zhao, Yi Fan, et al. "Comparative study on corrosion fatigue behaviour of high strength low alloy steel and simulated HAZ microstructures in a simulated marine atmosphere." International Journal of Fatigue 137 (August 2020): 105666. http://dx.doi.org/10.1016/j.ijfatigue.2020.105666.

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40

Górka, Jacek. "Analysis of Simulated Welding Thermal Cycles S700MC Using Thermal Imaging Camera." Advanced Materials Research 837 (November 2013): 375–80. http://dx.doi.org/10.4028/www.scientific.net/amr.837.375.

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In this paper an influence of simulated thermal cycle on properties and HAZ structure of 10 mm thick S700MC steel plates. The introduction of thermomechanically processed steels with high yield and relatively low carbon equivalent, will significantly reduce the time of welding works by reducing the preheating temperature, or even complete removal of this processing step, furthermore reduction of cross-sectional areas of structural elements, making welded structures with the same capacity will be more slender and lighter. The simulation of thermal cycles was carried out on a specially built tes

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41

Hongda, Deng, and Zeng Shunpeng. "Corrosion of welded joints of bimetallic composite tube in simulated offshore gas field environment." Anti-Corrosion Methods and Materials 61, no. 6 (2014): 380–86. http://dx.doi.org/10.1108/acmm-08-2013-1295.

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Purpose – The purpose of this investigation was to research the corrosion behavior of welded joints of bimetallic composite tube (X65/316L) welded with Inconel 625 in simulated sea water and in simulated production water, respectively. Design/methodology/approach – The different electrochemical corrosion and galvanic corrosion behaviors of different welded zones were identified using the dynamic potential scan method and galvanic corrosion technique. Findings – The heat-affected zone (HAZ) of welded joints was the most critical zone for corrosion. The closer to the welding line, more severe wa

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Liu, Yu, Liu Qing Yang, Bin Feng, Shi Wu Bai, and Chang Xue Xu. "Physical Simulation on Microstructure and Properties for Weld HAZ of X100 Pipeline Steel." Materials Science Forum 762 (July 2013): 556–61. http://dx.doi.org/10.4028/www.scientific.net/msf.762.556.

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In this paper, the simulation heat affected zone (HAZ) continuous cooling transformation (SH-CCT) diagram of X100 pipeline steel was drew by using Gleeble 3500-HS thermal/mechanics simulation test machine, and the microstructure and properties of the HAZ of single-pass/double-pass welding were simulated and studied. The results show that the hardening trend of X100 pipeline steel weld coarse grain HAZ (CGHAZ) is significant when using the small welding heat input. To prevent the hardening of weld CGHAZ and reduce the cold cracking sensitivity, moderate heat input welding specification (between

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Kafexhiu, Fevzi, Bojan Podgornik, and Franc Vodopivec. "Ageing effect on the creep performance of simulated weld HAZ for the steels X20 and P91." MATEC Web of Conferences 188 (2018): 03004. http://dx.doi.org/10.1051/matecconf/201818803004.

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Changes in size- and spatial distribution of precipitates and their effect on stationary creep rate of two grades of creep-resistant 9-12% Cr steels, X20 and P91, as a function of ageing at two different conditions were investigated. Ageing of both steels was performed at 650°C lasting up to 2 years and at 750°C lasting up to 6 months. Prior to the ageing, simulation of two weld heat-affected zone HAZ regions, i.e., coarsegrained microstructure (γ), and grain-refined microstructure (α+γ) was performed. Accelerated creep tests at 580°C and 170 MPa, lasting up to 100 hours were performed on the

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Cho, Dong Min, Jin-seong Park, Jin Woo Lee, and Sung Jin Kim. "Study on Hydrogen Diffusion and Sulfide Stress Cracking Behaviors of Simulated Heat-Affected Zone of A516-65 Grade Pressure Vessel Carbon Steel." Korean Journal of Metals and Materials 58, no. 9 (2020): 599–609. http://dx.doi.org/10.3365/kjmm.2020.58.9.599.

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Hydrogen diffusion and sulfide stress cracking of simulated heat-affected zone (HAZ) of A516- 65 grade steel were examined using an electrochemical permeation technique, glycerin volumetric method, and constant loading method. HAZ samples were fabricated using a metal thermal cycle simulator with a welding heat input of 20, 35, and 50 kJ/cm. The fractions of bainite and martensite-austenite (M-A) constituent in coarse-grained HAZ (CGHAZ) and intercritical HAZ (ICHAZ) obtained by a simulated thermal cycle with a low heat input (20 kJ/cm) were higher than those with a higher heat input. These fr

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Zhao, Zuopeng, Pengfei Xu, Hongxia Cheng, Jili Miao, and Furen Xiao. "Characterization of Microstructures and Fatigue Properties for Dual-Phase Pipeline Steels by Gleeble Simulation of Heat-Affected Zone." Materials 12, no. 12 (2019): 1989. http://dx.doi.org/10.3390/ma12121989.

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To increase transmission efficiency and reduce operation cost, dual-phase (DP) steels have been considered for pipeline applications. Welding has to be involved in such applications, which would cause a localized alteration of materials and cause many potential fatigue issues to arise under cyclic loading. In this work, the fatigue crack propagation and fatigue life of simulated heat-affected zone (HAZ) were examined. Results indicate that when the maximum stress is at the same magnitude, the fatigue life at a peak temperature of 1050 °C is very close to that of a peak temperature of 850 °C, a

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Zhang, Suqiang, Hongyun Zhao, Fengyuan Shu, Wenxiong He, and Guodong Wang. "Microstructure and Corrosion Behavior of Simulated Welding HAZ of Q315NS Steel in Sulfuric Acid Solution." Metals 7, no. 6 (2017): 194. http://dx.doi.org/10.3390/met7060194.

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Yang, Ke, Fei Wang, Dingshan Duan, et al. "Prediction of HAZ Microstructure and Hardness for Q960E Joints Welded by Triple-Wire GMAW Based on Thermal and Numerical Simulation." Materials 14, no. 17 (2021): 4898. http://dx.doi.org/10.3390/ma14174898.

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Since heat affected zone (HAZ) is the weak area of welded joints, this article proposes a method to predict the HAZ microstructure and hardness for the triple-wire gas metal arc welding (GMAW) process of Q960E high strength steel. This method combines welding thermal simulation and numerical simulation. The microstructures and hardness of Q960E steel under different cooling rates were obtained by thermal simulation and presented in a simulated HAZ continuous cooling transformation (SH-CCT) diagram. The cooling rate in HAZ were obtained by numerical simulation with ANSYS software for the triple

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Wu, Tai-Jung, Chien-Chun Liao, Tai-Cheng Chen, Ren-Kae Shiue, and Leu-Wen Tsay. "Microstructural Evolution and Short-Term Creep Rupture of the Simulated HAZ in T92 Steel Normalized at Different Temperatures." Metals 9, no. 12 (2019): 1310. http://dx.doi.org/10.3390/met9121310.

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T92 steel tubes have been widely applied in advanced supercritical boilers to replace Gr.91 tubes. Simulated samples with microstructures similar to those present in the heat-affected zone (HAZ) of a T92 steel weld were subjected to short-term creep tests in the study. T92 steel tubes were normalized at either 1213 K (L) or 1333 K (H) for 1 h, followed by tempering (T) at 1033 K for 2 h. After the normalizing and tempering treatments, the HT samples comprised finer precipitates but in greater numbers along the prior austenite grain boundaries (PAGBs) and martensite lath boundaries, as compared

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HASEGAWA, Toshiei, and Yukio TOMITA. "Influence of Ti and N on Strength and Toughness of 780MPa Class Steels and Their Simulated HAZ Toughness." Tetsu-to-Hagane 83, no. 3 (1997): 221–26. http://dx.doi.org/10.2355/tetsutohagane1955.83.3_221.

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Duan, Dong Ming, Run Wu, Meng Xia Tang, Yong Bu, and Xiao Chen. "The Properties of Low Yield Ratio and High Heat Input Welding Construction Steel and the Microstructure of HAZ." Applied Mechanics and Materials 490-491 (January 2014): 69–72. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.69.

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Steel with low yield ratio (YR0.75) and high heat input welding was made by combining Zr, Ti microalloying. Its microstructure investigated by optical and electron microscopes (SEM, TEM), consists of ferrite with the fine pearlite which not only ensures the high strength and toughness but also decreases the yield ratio. The steel was simulated in 100 kJ/cm heat input welding. The microstructures for heat affected zone (HAZ) of weldments mainly consisted of acicular ferrites which nucleate on fine Zr and Ti contained inclusions. The acicular ferrites decrease detrimental influence of grain cour

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