چکیده مقاله
In this research, the evaluation of the quality of hardfacing welds was done by the fusionwelding process for rock ladder in the middle part of the sponge iron storage tank Ideally, it would be great Therefore, the following results were determined, it wasobserved that the amount of carbon in the welding surface is 4 6%, which has achieved acompletely martensitic structure, and the range of hardness of the hardened layer wasHRC 61 to 63 The amount of chromium on the surface of the hard layer was about 28%,which the sources showed, including the typical microstructures of hard facing alloys ofchromium rich layers of the eutectic type The matrix with chromium of M7C3 typecarbides was visible in the surface layer of medium size chromium carbides The brittleeffect of deposited carbide during cooling below the solubility limit could be reduced byreducing the amount of carbon In order to confirm the welds, the manual items shouldbe considered, longitudinal cracks are not acceptable and wide cracks gaps should notoccur, the cracks should not continue in the base metal, and the cracks should be paralleland with approximately equal distances from each other To get the quality of a suitablelevel Also, the welding bands should overlap and overlap each other The weld metalmust be completely mixed with the base metal
کلیدواژهها
نویسندگان
Jamshid Alibabaei Shahraki
Technology management and development of Chaharmahal and Bakhtiari steel company
Iman Hajiannia
Assistant Professor of Shahid Mohajer Faculty, Chahar Mahal and Bakhtiari Steel Company
شیوه ارجاع
Alibabaei Shahraki, Jamshid and Hajiannia, Iman,1401,Evaluation of the quality of surface hardening welds for rock ladderpipes of direct reduction unit storage tanks in steel industries,5th International Conference on Welding and Non Destructive Testing & 23rd National Conference on Welding & Inspection & 12th National Conference on NDT,Isfahan
ارائهشده در
مجموعه مقالات پنجمین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب،بیست و سومین کنفرانس ملی جوش و بازرسی و دوازدهمین کنفرانس ملی آزمایش های غیرمخرب و اولین کنفرانس ملی ساخت افزایشی10 اسفند 1401 · اصفهان