Evaluation of the effect of the cooling rate during electric arc cladding on the microstructure formation of AISI 310 stainless steel
Jazyk: | ruština |
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Rok vydání: | 2022 |
Předmět: | |
DOI: | 10.18720/spbpu/3/2023/vr/vr23-282 |
Popis: | Ð ÑабоÑе ÑаÑÑмаÑÑиваеÑÑÑ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ñ ÑлекÑÑодÑговой наплавки Ñ Ð¸ÑполÑзованием пÑоволоки из Ñплава AISI 310, Ñ ÑелÑÑ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ ÑавнооÑной зеÑенной аÑÑÑениÑной микÑоÑÑÑÑкÑÑÑÑ Ð½Ð°Ð¿Ð»Ð°Ð²Ð»ÐµÐ½Ð½Ð¾Ð³Ð¾ меÑалла.ÐадаÑи вÑпÑÑкной квалиÑикаÑионной ÑабоÑÑ:Ðнализ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ ÑлекÑÑодÑговой наплавки и влиÑÐ½Ð¸Ñ Ð¿Ð°ÑамеÑÑов пÑоÑеÑÑа на микÑоÑÑÑÑкÑÑÑÑ Ð¿Ð¾Ð»ÑÑаемого меÑалла;ÐолÑÑение загоÑовок ÑлекÑÑодÑговой наплавкой из пÑоволоки аÑÑÑениÑной неÑжавеÑÑей ÑÑали AISI 310;ÐзгоÑовление обÑазÑов Ð´Ð»Ñ Ð¼ÐµÑаллогÑаÑии;Ðнализ ÑеÑмоÑиклов обÑазÑов;Ðнализ микÑоÑÑÑÑкÑÑÑÑ Ð¾Ð±ÑазÑов;Ðнализ влиÑÐ½Ð¸Ñ ÑкоÑоÑÑей Ð¾Ñ Ð»Ð°Ð¶Ð´ÐµÐ½Ð¸Ñ Ð¸ ÑÑловий наплавки на полÑÑаемÑÑ Ð¼Ð¸ÐºÑоÑÑÑÑкÑÑÑÑ.Ð Ñ Ð¾Ð´Ðµ ÑабоÑÑ Ð±Ñла пÑоизведена наплавка Ñо ÑнÑÑием ÑеÑмоÑиклов, пÑи ÑазлиÑнÑÑ ÑÑловиÑÑ Ð¾Ñ Ð»Ð°Ð¶Ð´ÐµÐ½Ð¸Ñ Ð¸ Ñ Ð¸ÑполÑзованием Ñежимов Ñ ÑазлиÑнÑми погоннÑми ÑнеÑгиÑми. Ðалее бÑли подгоÑÐ¾Ð²Ð»ÐµÐ½Ñ Ð¾Ð±ÑазÑÑ Ð´Ð»Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° микÑоÑÑÑÑкÑÑÑÑ. ÐолÑÑеннÑе ÑеÑмоÑÐ¸ÐºÐ»Ñ Ð¸ микÑоÑÑÑÑкÑÑÑÑ Ð¾Ð±ÑазÑов наплавленного меÑалла бÑли пÑоанализиÑÐ¾Ð²Ð°Ð½Ñ Ð¸ бÑла пÑоизведена оÑенка влиÑÐ½Ð¸Ñ ÑкоÑоÑÑей Ð¾Ñ Ð»Ð°Ð¶Ð´ÐµÐ½Ð¸Ñ Ð½Ð° микÑоÑÑÑÑкÑÑÑÑ Ð¿Ð¾Ð»ÑÑаемого меÑалла. In this masterâs work influence of cooling rate on microstructure evolution during wire arc additive manufacturing of AISI 310 austenitic stainless steel was investigated. The thermocycles and resulting microstructure were analysed in order to find correlations between thermal history and microstructure of samples. Ultimate goal of current work is to achieve equiaxed fine grain austenitic microstructure during WAAM of AISI 310 stainless steel. Tasks of the masterâs work: Analysis of the technology of wire arc additive manufacturing and the influence of process parameters on the microstructure of the metal; Production of samples by WAAM with AISI 310 austenitic stainless steel wire and different cooling environment as well as different heat input; Production of metallography samples for further microstructural analysis;⢠Analysis of thermal cycles of sample production processes; Microstructural analysis of samples; Evaluation of influence of cooling rates and deposition mode parameters on resulting microstructure based of microstructure and thermal cycle analysis.In current work, wire arc additive manufacturing of AISI 310 stainless steel was carried out, with thermal cycle recording under various cooling conditions and using depositing modes with different heat inputs. Further, specimens for metallography were produced, the obtained thermal cycles and microstructures of deposited metal samples were analyzed, and influence of cooling conditions and heat input were evaluated. |
Databáze: | OpenAIRE |
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