{"title":"高压扭转高锰奥氏体钢变形组织和显微硬度的退火行为","authors":"G. Maier","doi":"10.1063/1.5132072","DOIUrl":null,"url":null,"abstract":"The microstructural evolution in Fe-13Mn-1.3C, Fe-13Mn-2.7Al-1.3C and Fe-28Mn-2.7Al-1.3C (wt %) steels with different stacking faults energies processed by high-pressure torsion (HPT) were studied in dependence on the temperature of post-HPT anneal. HPT-assisted microstructure with high fraction of twin boundaries in Fe-28Mn-2.7Al-1.3C steel possess the highest stability (up to 600°C) during post-deformation annealing in comparison with two other steels. Independently on steel composition and tendency to phase transformation, a recrystallization occurs during annealing at temperature 700°C and fine-grained austenitic microstructure forms in all steels. Annealing at 700°C promotes formation of inhomogeneous microstructure with predominant growth of individual grains in Fe-13Mn-1.3C, Fe-28Mn-2.7Al-1.3C steels, which are more stable to phase transformation during annealing as compared to Fe-13Mn-2.7Al-1.3C steel.The microstructural evolution in Fe-13Mn-1.3C, Fe-13Mn-2.7Al-1.3C and Fe-28Mn-2.7Al-1.3C (wt %) steels with different stacking faults energies processed by high-pressure torsion (HPT) were studied in dependence on the temperature of post-HPT anneal. HPT-assisted microstructure with high fraction of twin boundaries in Fe-28Mn-2.7Al-1.3C steel possess the highest stability (up to 600°C) during post-deformation annealing in comparison with two other steels. Independently on steel composition and tendency to phase transformation, a recrystallization occurs during annealing at temperature 700°C and fine-grained austenitic microstructure forms in all steels. Annealing at 700°C promotes formation of inhomogeneous microstructure with predominant growth of individual grains in Fe-13Mn-1.3C, Fe-28Mn-2.7Al-1.3C steels, which are more stable to phase transformation during annealing as compared to Fe-13Mn-2.7Al-1.3C steel.","PeriodicalId":20637,"journal":{"name":"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019","volume":"19 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Anneal-behavior of deformation microstructure and microhardness of high-Mn austenitic steels processed by high-pressure torsion\",\"authors\":\"G. Maier\",\"doi\":\"10.1063/1.5132072\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The microstructural evolution in Fe-13Mn-1.3C, Fe-13Mn-2.7Al-1.3C and Fe-28Mn-2.7Al-1.3C (wt %) steels with different stacking faults energies processed by high-pressure torsion (HPT) were studied in dependence on the temperature of post-HPT anneal. HPT-assisted microstructure with high fraction of twin boundaries in Fe-28Mn-2.7Al-1.3C steel possess the highest stability (up to 600°C) during post-deformation annealing in comparison with two other steels. Independently on steel composition and tendency to phase transformation, a recrystallization occurs during annealing at temperature 700°C and fine-grained austenitic microstructure forms in all steels. Annealing at 700°C promotes formation of inhomogeneous microstructure with predominant growth of individual grains in Fe-13Mn-1.3C, Fe-28Mn-2.7Al-1.3C steels, which are more stable to phase transformation during annealing as compared to Fe-13Mn-2.7Al-1.3C steel.The microstructural evolution in Fe-13Mn-1.3C, Fe-13Mn-2.7Al-1.3C and Fe-28Mn-2.7Al-1.3C (wt %) steels with different stacking faults energies processed by high-pressure torsion (HPT) were studied in dependence on the temperature of post-HPT anneal. HPT-assisted microstructure with high fraction of twin boundaries in Fe-28Mn-2.7Al-1.3C steel possess the highest stability (up to 600°C) during post-deformation annealing in comparison with two other steels. Independently on steel composition and tendency to phase transformation, a recrystallization occurs during annealing at temperature 700°C and fine-grained austenitic microstructure forms in all steels. Annealing at 700°C promotes formation of inhomogeneous microstructure with predominant growth of individual grains in Fe-13Mn-1.3C, Fe-28Mn-2.7Al-1.3C steels, which are more stable to phase transformation during annealing as compared to Fe-13Mn-2.7Al-1.3C steel.\",\"PeriodicalId\":20637,\"journal\":{\"name\":\"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019\",\"volume\":\"19 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-11-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1063/1.5132072\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1063/1.5132072","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Anneal-behavior of deformation microstructure and microhardness of high-Mn austenitic steels processed by high-pressure torsion
The microstructural evolution in Fe-13Mn-1.3C, Fe-13Mn-2.7Al-1.3C and Fe-28Mn-2.7Al-1.3C (wt %) steels with different stacking faults energies processed by high-pressure torsion (HPT) were studied in dependence on the temperature of post-HPT anneal. HPT-assisted microstructure with high fraction of twin boundaries in Fe-28Mn-2.7Al-1.3C steel possess the highest stability (up to 600°C) during post-deformation annealing in comparison with two other steels. Independently on steel composition and tendency to phase transformation, a recrystallization occurs during annealing at temperature 700°C and fine-grained austenitic microstructure forms in all steels. Annealing at 700°C promotes formation of inhomogeneous microstructure with predominant growth of individual grains in Fe-13Mn-1.3C, Fe-28Mn-2.7Al-1.3C steels, which are more stable to phase transformation during annealing as compared to Fe-13Mn-2.7Al-1.3C steel.The microstructural evolution in Fe-13Mn-1.3C, Fe-13Mn-2.7Al-1.3C and Fe-28Mn-2.7Al-1.3C (wt %) steels with different stacking faults energies processed by high-pressure torsion (HPT) were studied in dependence on the temperature of post-HPT anneal. HPT-assisted microstructure with high fraction of twin boundaries in Fe-28Mn-2.7Al-1.3C steel possess the highest stability (up to 600°C) during post-deformation annealing in comparison with two other steels. Independently on steel composition and tendency to phase transformation, a recrystallization occurs during annealing at temperature 700°C and fine-grained austenitic microstructure forms in all steels. Annealing at 700°C promotes formation of inhomogeneous microstructure with predominant growth of individual grains in Fe-13Mn-1.3C, Fe-28Mn-2.7Al-1.3C steels, which are more stable to phase transformation during annealing as compared to Fe-13Mn-2.7Al-1.3C steel.
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