M. Srikanth , B. Sai Charan , Dasari Muthya Venu , K. Venkatesan , Gosipathala Sreedhar , Kausik Chattopadhyay , Deepak K. Pattanayak
{"title":"超声喷丸强化选择性激光熔化Ti6Al4V的高温氧化和耐热腐蚀性能","authors":"M. Srikanth , B. Sai Charan , Dasari Muthya Venu , K. Venkatesan , Gosipathala Sreedhar , Kausik Chattopadhyay , Deepak K. Pattanayak","doi":"10.1016/j.matchemphys.2024.130170","DOIUrl":null,"url":null,"abstract":"<div><div>In the present study, Ultrasonic shot peening (USSP) method has been adopted to understand the electrochemical corrosion resistance, high temperature oxidation and hot corrosion resistance of Ti alloy (Ti6Al4V) fabricated by Selective Laser Melting (SLM) process. The results showed the significant enhancement in electrochemical corrosion resistance in 3.5 wt% NaCl, high temperature oxidation resistance and hot corrosion resistance in Na<sub>2</sub>SO<sub>4</sub> + 25 % NaCl and Na<sub>2</sub>SO<sub>4</sub> + 50 % V<sub>2</sub>O<sub>5</sub> at 750 °C after the USSP treatment. Various characterization techniques such as Optical Microscopy, Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS) and Field Emission Scanning Electron Microscopy (FE-SEM) used to characterize the high temperature oxidation as well as the hot corrosion products and the result confirms the formation of various oxide compounds such as TiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, V<sub>2</sub>O<sub>3</sub>, V<sub>2</sub>O<sub>5</sub>, Na<sub>2</sub>TiO<sub>3</sub> etc. Grain size have been significantly reduced from 62.4 ± 6.5 to 39.3 ± 3.4 μm and it substantially improved the hardness value from 386 to 457.5 HV after USSP treatment.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"332 ","pages":"Article 130170"},"PeriodicalIF":4.3000,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhancement of high temperature oxidation and hot corrosion resistance behaviors of selective laser melted Ti6Al4V by ultrasonic shot peening\",\"authors\":\"M. Srikanth , B. Sai Charan , Dasari Muthya Venu , K. Venkatesan , Gosipathala Sreedhar , Kausik Chattopadhyay , Deepak K. Pattanayak\",\"doi\":\"10.1016/j.matchemphys.2024.130170\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>In the present study, Ultrasonic shot peening (USSP) method has been adopted to understand the electrochemical corrosion resistance, high temperature oxidation and hot corrosion resistance of Ti alloy (Ti6Al4V) fabricated by Selective Laser Melting (SLM) process. The results showed the significant enhancement in electrochemical corrosion resistance in 3.5 wt% NaCl, high temperature oxidation resistance and hot corrosion resistance in Na<sub>2</sub>SO<sub>4</sub> + 25 % NaCl and Na<sub>2</sub>SO<sub>4</sub> + 50 % V<sub>2</sub>O<sub>5</sub> at 750 °C after the USSP treatment. Various characterization techniques such as Optical Microscopy, Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS) and Field Emission Scanning Electron Microscopy (FE-SEM) used to characterize the high temperature oxidation as well as the hot corrosion products and the result confirms the formation of various oxide compounds such as TiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub>, V<sub>2</sub>O<sub>3</sub>, V<sub>2</sub>O<sub>5</sub>, Na<sub>2</sub>TiO<sub>3</sub> etc. Grain size have been significantly reduced from 62.4 ± 6.5 to 39.3 ± 3.4 μm and it substantially improved the hardness value from 386 to 457.5 HV after USSP treatment.</div></div>\",\"PeriodicalId\":18227,\"journal\":{\"name\":\"Materials Chemistry and Physics\",\"volume\":\"332 \",\"pages\":\"Article 130170\"},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2024-11-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Chemistry and Physics\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0254058424012987\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Chemistry and Physics","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0254058424012987","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Enhancement of high temperature oxidation and hot corrosion resistance behaviors of selective laser melted Ti6Al4V by ultrasonic shot peening
In the present study, Ultrasonic shot peening (USSP) method has been adopted to understand the electrochemical corrosion resistance, high temperature oxidation and hot corrosion resistance of Ti alloy (Ti6Al4V) fabricated by Selective Laser Melting (SLM) process. The results showed the significant enhancement in electrochemical corrosion resistance in 3.5 wt% NaCl, high temperature oxidation resistance and hot corrosion resistance in Na2SO4 + 25 % NaCl and Na2SO4 + 50 % V2O5 at 750 °C after the USSP treatment. Various characterization techniques such as Optical Microscopy, Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS) and Field Emission Scanning Electron Microscopy (FE-SEM) used to characterize the high temperature oxidation as well as the hot corrosion products and the result confirms the formation of various oxide compounds such as TiO2, Al2O3, V2O3, V2O5, Na2TiO3 etc. Grain size have been significantly reduced from 62.4 ± 6.5 to 39.3 ± 3.4 μm and it substantially improved the hardness value from 386 to 457.5 HV after USSP treatment.
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