Effects of Shielding Gas on the Depth, Width and Hardness of 17-4PH Stainless Steel during TIG Welding

سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 341

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شناسه ملی سند علمی:

JR_JEFM-4-1_004

تاریخ نمایه سازی: 1 مرداد 1399

چکیده مقاله:

The present study investigates the effects of type of shielding gas on the depth, width and hardness of 17-4PH stainless steel. For this purpose, pure He, pure Ar and 80%Ar + 20% He were used as shielding gases in TIG welding of 17-4PH SS. Weld depth and width of specimens were measured by macro etching. Microstructure of welds was studied by using SEM technique. Moreover, micro Vickers hardness test was accomplished to gauge the hardness of welds. Results showed that specimen welded with pure He has the highest hardness values in the weld zone due to the reduction of δ-ferrite formation in the martensitic matrix. Furthermore, owing to the lower thermal conductivity and heat input of Ar gas, specimen welded by pure Ar has the shallowest and narrowest weld bead. However, due to produce hotter arc by addition of He in shielding gas, enhancements observed in the weld depth and width of specimens welded with pure He and 80%Ar + 20% He.

نویسندگان

S, M Hosseini Farzaneh

Department of Petroleum, Mining and Materials Engineering, Tehran Central Branch, Islamic Azad University, Tehran, Iran.

M Belbasi

Department of Petroleum, Mining and Materials Engineering, Tehran Central Branch, Islamic Azad University, Tehran, Iran.

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  • A. Gharebaghi, Precipitation Study in a High Temperature Austenitic Stainless ...
  • F. Christien and R. Le Gall, Scr. Mater., 48, (2003), ...
  • ASM Metals Handbook, Metallography and Microstructures, Stainless Steel Casting Alloys ...
  • J. C. Lippold and D. J. Kotecki, Intro. Mater. Sci., ...
  • 17-4PH Specification Sheet, Sandmeyer Steel Company, PA. ...
  • C. R. Das, H. C. Dey, G. Srinivasan, S. K. ...
  • P. Maj, B. Adamczyk-Cieslak, M. Lewczuk, J. Mizera, S. Kut ...
  • J. Ma, MM. Atabaki, W. Liu, R. Pillai, B. Kumar, ...
  • Crown Er630 (17-4 PH) data sheet, Crown Alloys Company. ...
  • Evans RM, Martin DC, Vagi JJ. Welding of precipitation-hardening stainless ...
  • B. Zarei, H. TaghipourArmaki, H. Shadi, A. Moradi, B. Delikhoon, ...
  • I. Bitharas, S. W. Campbell, A. M. Galloway, N. A. ...
  • W. Liu, J. Ma, M. M. Atabaki, R. Pillai, B. ...
  • S. A. HoseiniHoseinabad, Sch. Metall. Mater. Eng., (2008), 119. ...
  • M. B. Balajaddeh and H. Naffakh-Moosavy, Opt. Laser. Technol., (2019), ...
  • A. R. Sufizadeh and S. A. A. AkbariMusavi, Metall. Eng. ...
  • F. TatiKhaniverdi, M. R. KarimiNoori and M. Belbasi, Effect of ...
  • N. R. Mandal, Aluminium welding. Woodhead publishing; (2001) Jan 15. ...
  • Y. Najafi, F. MalekGhaini, Y. Palizdar and S. Gholami, J. ...
  • نمایش کامل مراجع