The effect of particle size of iron powder on α to γ transformation in the nanostructured high nitrogen Fe–Cr–Mn–Mo stainless steel produced by mechanical alloying
► High nitrogen austenitic Fe18Cr10Mn4Mo stainless steel can be produced by MA and without annealing. ► The initial powder particle size plays an important role on the rate of nitrogen absorption and consequently on phase transformation kinetics. ► Nitrogen content in the steel is the most effective...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2011-05, Vol.528 (12), p.3961-3966 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Tehrani, F. Abbasi, M.H. Golozar, M.A. Panjepour, M. |
| description | ► High nitrogen austenitic Fe18Cr10Mn4Mo stainless steel can be produced by MA and without annealing. ► The initial powder particle size plays an important role on the rate of nitrogen absorption and consequently on phase transformation kinetics. ► Nitrogen content in the steel is the most effective parameter for α to γ kinetic enhancement.
In this study, the effect of particle size of iron powder on α to γ transformation in the nanostructured high nitrogen Fe–18Cr–10Mn–4Mo stainless steel, produced by mechanical alloying (MA) was investigated. For this purpose iron powders with two different particle sizes were used. MA was performed under nitrogen atmosphere, using a high-energy planetary ball mill. X-ray diffraction (XRD) patterns and nitrogen analysis revealed that by decreasing the iron mean particle size, a higher transformation rate is obtained due to increase in the rate of nitrogen absorption. Moreover, nitrogen solubility in both milled samples was increased noticeably by increasing the milling time. This is believed to be due to the increase of lattice defects and development of nanostructure through MA. Variations of grain size and internal lattice strain versus milling time, for both iron particle sizes, showed that the critical ferrite grain size for austenite nucleation is less than 10
nm. |
| doi_str_mv | 10.1016/j.msea.2010.12.043 |
| format | Article |
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In this study, the effect of particle size of iron powder on α to γ transformation in the nanostructured high nitrogen Fe–18Cr–10Mn–4Mo stainless steel, produced by mechanical alloying (MA) was investigated. For this purpose iron powders with two different particle sizes were used. MA was performed under nitrogen atmosphere, using a high-energy planetary ball mill. X-ray diffraction (XRD) patterns and nitrogen analysis revealed that by decreasing the iron mean particle size, a higher transformation rate is obtained due to increase in the rate of nitrogen absorption. Moreover, nitrogen solubility in both milled samples was increased noticeably by increasing the milling time. This is believed to be due to the increase of lattice defects and development of nanostructure through MA. Variations of grain size and internal lattice strain versus milling time, for both iron particle sizes, showed that the critical ferrite grain size for austenite nucleation is less than 10
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In this study, the effect of particle size of iron powder on α to γ transformation in the nanostructured high nitrogen Fe–18Cr–10Mn–4Mo stainless steel, produced by mechanical alloying (MA) was investigated. For this purpose iron powders with two different particle sizes were used. MA was performed under nitrogen atmosphere, using a high-energy planetary ball mill. X-ray diffraction (XRD) patterns and nitrogen analysis revealed that by decreasing the iron mean particle size, a higher transformation rate is obtained due to increase in the rate of nitrogen absorption. Moreover, nitrogen solubility in both milled samples was increased noticeably by increasing the milling time. This is believed to be due to the increase of lattice defects and development of nanostructure through MA. Variations of grain size and internal lattice strain versus milling time, for both iron particle sizes, showed that the critical ferrite grain size for austenite nucleation is less than 10
nm.</description><subject>Applied sciences</subject><subject>Austenitic stainless steels</subject><subject>Ball milling</subject><subject>Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Grain boundaries</subject><subject>Grain size</subject><subject>Iron</subject><subject>Materials science</subject><subject>Mechanical alloying</subject><subject>Metals. Metallurgy</subject><subject>Nanostructure</subject><subject>Nanostructured</subject><subject>Particle size</subject><subject>Phase diagrams and microstructures developed by solidification and solid-solid phase transformations</subject><subject>Phase transformation</subject><subject>Physics</subject><subject>Powder metallurgy. Composite materials</subject><subject>Production techniques</subject><subject>Stainless steels</subject><subject>Steel</subject><subject>Steels</subject><subject>Technology</subject><subject>Transformations</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9UTuOFDEQtRBIDAsXIHKCRNKDP909tkSCRiystIhkiS23XZ7xqNsebDdoNuIOHIMI7T32EJwEt2ZFSFIuPb33ylUPoZeUrCmh_ZvDesqg14wsAFuTlj9CKyo2vGkl7x-jFZGMNh2R_Cl6lvOBEEJb0q3Qr5s9YHAOTMHR4aNOxZsRcPa3sAA-xYCP8buFhGt3_xuXiO_vcEk6ZBfTpIuvuA-4VKOgQ8wlzabMCSze-90eB19S3EHAl_Dnx89tquVTWErEuWgfRsi5dgAjPqZoZ1OFwwlPYPY6eKNHrMcxnnzYPUdPnB4zvHh4L9CXy_c324_N9ecPV9t3143hPS9NbwUXVlprpNCMOAAmaCeksEQMHZeyBTcMvKVW98z0rpOcWk5aMQgzAHX8Ar0--9b_fJ0hFzX5bGAcdYA4Z0X7DWVSiJZUKjtTTYo5J3DqmPyk00lRopZk1EEtyaglGUWZqslU0asHf53rfq6e0vj8T8laQvlGdpX39syDuuw3D0ll4yHUA_lU81I2-v-N-Qv2M6wR</recordid><startdate>20110515</startdate><enddate>20110515</enddate><creator>Tehrani, F.</creator><creator>Abbasi, M.H.</creator><creator>Golozar, M.A.</creator><creator>Panjepour, M.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20110515</creationdate><title>The effect of particle size of iron powder on α to γ transformation in the nanostructured high nitrogen Fe–Cr–Mn–Mo stainless steel produced by mechanical alloying</title><author>Tehrani, F. ; Abbasi, M.H. ; Golozar, M.A. ; Panjepour, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c363t-6d838d9ddc98a20fee2815898d08b53994efbb341da62c6f5931d3048b8cbe1f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Applied sciences</topic><topic>Austenitic stainless steels</topic><topic>Ball milling</topic><topic>Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Exact sciences and technology</topic><topic>Grain boundaries</topic><topic>Grain size</topic><topic>Iron</topic><topic>Materials science</topic><topic>Mechanical alloying</topic><topic>Metals. Metallurgy</topic><topic>Nanostructure</topic><topic>Nanostructured</topic><topic>Particle size</topic><topic>Phase diagrams and microstructures developed by solidification and solid-solid phase transformations</topic><topic>Phase transformation</topic><topic>Physics</topic><topic>Powder metallurgy. Composite materials</topic><topic>Production techniques</topic><topic>Stainless steels</topic><topic>Steel</topic><topic>Steels</topic><topic>Technology</topic><topic>Transformations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tehrani, F.</creatorcontrib><creatorcontrib>Abbasi, M.H.</creatorcontrib><creatorcontrib>Golozar, M.A.</creatorcontrib><creatorcontrib>Panjepour, M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tehrani, F.</au><au>Abbasi, M.H.</au><au>Golozar, M.A.</au><au>Panjepour, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effect of particle size of iron powder on α to γ transformation in the nanostructured high nitrogen Fe–Cr–Mn–Mo stainless steel produced by mechanical alloying</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2011-05-15</date><risdate>2011</risdate><volume>528</volume><issue>12</issue><spage>3961</spage><epage>3966</epage><pages>3961-3966</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>► High nitrogen austenitic Fe18Cr10Mn4Mo stainless steel can be produced by MA and without annealing. ► The initial powder particle size plays an important role on the rate of nitrogen absorption and consequently on phase transformation kinetics. ► Nitrogen content in the steel is the most effective parameter for α to γ kinetic enhancement.
In this study, the effect of particle size of iron powder on α to γ transformation in the nanostructured high nitrogen Fe–18Cr–10Mn–4Mo stainless steel, produced by mechanical alloying (MA) was investigated. For this purpose iron powders with two different particle sizes were used. MA was performed under nitrogen atmosphere, using a high-energy planetary ball mill. X-ray diffraction (XRD) patterns and nitrogen analysis revealed that by decreasing the iron mean particle size, a higher transformation rate is obtained due to increase in the rate of nitrogen absorption. Moreover, nitrogen solubility in both milled samples was increased noticeably by increasing the milling time. This is believed to be due to the increase of lattice defects and development of nanostructure through MA. Variations of grain size and internal lattice strain versus milling time, for both iron particle sizes, showed that the critical ferrite grain size for austenite nucleation is less than 10
nm.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2010.12.043</doi><tpages>6</tpages></addata></record> |
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| subjects | Applied sciences Austenitic stainless steels Ball milling Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder Cross-disciplinary physics: materials science rheology Exact sciences and technology Grain boundaries Grain size Iron Materials science Mechanical alloying Metals. Metallurgy Nanostructure Nanostructured Particle size Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Phase transformation Physics Powder metallurgy. Composite materials Production techniques Stainless steels Steel Steels Technology Transformations |
| title | The effect of particle size of iron powder on α to γ transformation in the nanostructured high nitrogen Fe–Cr–Mn–Mo stainless steel produced by mechanical alloying |
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