Volume 20, Issue 5 (May 2020)                   Modares Mechanical Engineering 2020, 20(5): 1107-1113 | Back to browse issues page

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Sabokrouh M, Farahani M. Experimental investigation of the Annealing Effect on the Mechanical Properties of Girth Welding Using Nanoparticles on Gas Transmission Pipeline. Modares Mechanical Engineering 2020; 20 (5) :1107-1113
URL: http://mme.modares.ac.ir/article-15-29610-en.html
1- Mechanical Engineering Faculty, Engineering Faculty, Mahallat Institute of Higher Education, Mahallat, Iran
2- Mechanical Engineering Department, Engineering College, University of Tehran, Tehran, Iran , mrfarahani@ut.ac.ir
Abstract:   (2014 Views)
Titanium is one of the most important microalloy elements used in the gas transmission industry. In this paper, titanium nano-oxide and titanium nano-carbide were added to two separate samples. Then the shielded metal arc welding (SMAW) was performed on high-strength low alloy steel according to welding procedure specification of the national Iranian gas company. The effects of annealing heat treatment on girth weld with containing titanium oxide and titanium carbide nanoparticles (X-65 grade of gas transmission pipeline) were evaluated. The Charpy test results show that in the annealed sample containing titanium oxide nanoparticles and titanium carbide nanoparticles compared to the no heat treatment sample (Containing titanium carbide nanoparticles and titanium carbide nanoparticles), energy absorbed has been respectively increased by %13 and %9. Also, the ultimate strength of the annealed sample containing titanium oxide nanoparticles and titanium carbide nanoparticles compared to the non-heat treated sample has been respectively decreased by %8 and %3. The fatigue life in both annealed nano-alloy samples has been increased. Also, the fatigue life in the annealed sample of titanium carbide nanoparticles has increased more than fatigue life in the titanium oxide nanoparticles. The fatigue life (Annealed sample containing titanium carbide nanoparticles compared to the no heat treatment sample) has been increased by %16. The hole drilling strain gage results show that in the annealed sample containing titanium oxide nanoparticles and titanium carbide nanoparticles compared to the non-heat treated sample, hoop residual stresses has been respectively decreased by %31 and %19. 
Full-Text [PDF 917 kb]   (1382 Downloads)    
Article Type: Original Research | Subject: Welding
Received: 2019/01/20 | Accepted: 2019/10/12 | Published: 2020/05/9

References
1. Leitner M, Gerstbrein S, Ottersböck M, Stoschka M. Fatigue strength of HFMI-treated and stress-relief annealed high-strength steel weld Joints. Procedia Engineering. 2015;133:477-484. [Link] [DOI:10.1016/j.proeng.2015.12.618]
2. Soliman M, Palkowski H. Microstructure development and mechanical properties of medium carbon carbide-free bainite steels. Procedia Engineering. 2014;81:1306-1331. [Link] [DOI:10.1016/j.proeng.2014.10.148]
3. Lee IK, Chung CL, YT Lee, Chien YT. Effect of thermal refining on mechanical properties of annealed SAE 4130 by multilayer GTAW. Journal of Iron and Steel Research International. 2012;19:71-78. [Link] [DOI:10.1016/S1006-706X(12)60116-2]
4. Hashemi SH, Mohamaadyani D. Characterisation of weldment hardness, impact energy and microstructure in API X65 steel. International Journal of Pressure Vessels and Piping. 2012;98:8-15. [Link] [DOI:10.1016/j.ijpvp.2012.05.011]
5. Leggatt RH. Residual stresses in welded structures. International Journal of Pressure Vessels and Piping. 2008;85(3):144-151. [Link] [DOI:10.1016/j.ijpvp.2007.10.004]
6. Bose-Filho WW, Carvalho ALM, Strangwood M. Effect of alloying elements on the microstructure and inclusion formation in HSLA multipass welds. Materials Characterization. 2007;58(1):29-39. [Link] [DOI:10.1016/j.matchar.2006.03.004]
7. Bouchard PJ. Validated residual stress profiles for fracture assessments of stainless steel pipe girth welds. International Journal of Pressure Vessels and Piping. 2007;84(4):195-222. [Link] [DOI:10.1016/j.ijpvp.2006.10.006]
8. Hashemi SH, Mohamaadyani D, Pouranvari M, Mousavizadeh SM. On the relation of microstructure and impact toughness characteristics of DSAW steel of grade API X70. Fatigue & Fracture of Engineering Materials & Structures. 2009;32(1):33-40. [Link] [DOI:10.1111/j.1460-2695.2008.01312.x]
9. Beidokhti B, Koukabi AH, Dolati A. Influences of titanium and manganese on high strength low alloy SAW weld metal properties. Materials Characterization. 2009;60(3):225-233. [Link] [DOI:10.1016/j.matchar.2008.09.005]
10. Beidokhti B, Koukabi AH, Dolati A. Effect of titanium addition on the microstructure and inclusion formation in submerged arc welded HSLA pipeline steel. Journal of Materials Processing Technology. 2009;209(8):4027-4035. [Link] [DOI:10.1016/j.jmatprotec.2008.09.021]
11. Chabok A, Dehghani K, Ahmadi Jazani M. Comparing the fatigue and corrosion behavior of nanograin and coarse-grain IF steels. Acta Metallurgica Sinica. 2015;28:295-301. [Link] [DOI:10.1007/s40195-014-0196-2]
12. Muszka K, Majta J, Hodgson PD. Modeling of the mechanical behavior of nanostructured HSLA steels. ISIJ International. 2007;47(8):1221-1227. [Link] [DOI:10.2355/isijinternational.47.1221]
13. Jorge JCF, Monteiro JLD, Gomes AJC, Bott IS, De Souza LFG, Mendes MC, et al. Influence of welding procedure and PWHT on HSLA steel weld metals. Journal of Materials Research and Technology. 2019;8(1):561-571. [Link] [DOI:10.1016/j.jmrt.2018.05.007]
14. Hashemi SH, Sabokrouh M, Farahani MR. Investigation of welding in multi-pass girth welding of thermomechanical steel pipe. Modares Mechanical Engineering. 2013;13(4):60-73. [Persian] [Link]
15. Sabokrouh M, Hashemi SH, Farahani MR. Experimental study of the weld microstructure properties in assembling of natural gas transmission pipelines. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 2017;231(6):1039-1047. [Link] [DOI:10.1177/0954405415579581]
16. Sabokrouh M, Farahani MR. Experimental study of the residual stresses in girth weld of natural gas transmission pipeline. Journal of Applied and Computational Mechanics. 2019;5(2):199-206. [Persian] [Link]
17. Sabokrouh M, Farahani MR. Simulation of the residual stresses distribution in girth weld of gas transmission pipeline. Modares Mechanical Engineering. 2019;19(1):223-228. [Persian] [Link]
18. Sabokrouh M, Farahani MR. Mathematical modeling of residual stress distribution in girth welding of high strength low alloy steel gas pipelines. Modares Mechanical Engineering. 2018;18(7):226-232. [Persian] [Link]
19. Sabokrouh M, Khoshsima b. Experimental determination of the effect of titanium nanoalloy on mechanical properties of girth welding on Iranian natural gas transmission pipelines. Journal of Solid and Fluid Mechanics. 2018;8(3):213-219. [Persian] [Link]
20. Sabokrouh M. Experimental determination of the normalizing effect on tensile strength, impact strength, fatigue, residual stress of girth welding on Iranian natural gas transmission pipelines. Modares Mechanical Engineering. 2020;20(4):1033-1039. [Persian] [Link]

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