Correlation of microstructure and fracture toughness in high-chromium white iron hardfacing alloys
A correlation is made of microstructure and fracture toughness in hypereutectic high-chromium white iron hardfacing alloys. In order to investigate the matrix effect of these alloys, in particular, four different matrices such as pearlite, austenite, and a mixture of pearlite and austenite were empl...
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| Veröffentlicht in: | Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science Physical Metallurgy and Materials Science, 1996-12, Vol.27 (12), p.3881-3891 |
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| container_title | Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science |
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| creator | LEE, S CHOO, S.-H BAEK, E.-R AHN, S KIM, N. J |
| description | A correlation is made of microstructure and fracture toughness in hypereutectic high-chromium white iron hardfacing alloys. In order to investigate the matrix effect of these alloys, in particular, four different matrices such as pearlite, austenite, and a mixture of pearlite and austenite were employed by changing the ratio of Mn/Si, while the total volume fraction of carbides was fixed. The hardfacing alloys were deposited twice on a mild steel plate by the self-shielding flux-cored arc-welding method. Fracture toughness was increased by increasing the volume fraction of austenite in the matrix, whereas hardness and abrasion resistance were nearly constant. In situ observation of the fracture process showed that cracks initiated at large primary carbides tended to be blocked at the austenitic matrix. This suggested that fracture toughness was controlled mainly by the amount of austenite in the matrix, thereby yielding the better toughness in the hardfacing alloy having the austenitic matrix. Considering both abrasion resistance and fracture toughness, therefore, the austenitic matrix was preferred for the high-chromium white iron hardfacing alloys. |
| doi_str_mv | 10.1007/BF02595637 |
| format | Article |
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J</creator><creatorcontrib>LEE, S ; CHOO, S.-H ; BAEK, E.-R ; AHN, S ; KIM, N. J</creatorcontrib><description>A correlation is made of microstructure and fracture toughness in hypereutectic high-chromium white iron hardfacing alloys. In order to investigate the matrix effect of these alloys, in particular, four different matrices such as pearlite, austenite, and a mixture of pearlite and austenite were employed by changing the ratio of Mn/Si, while the total volume fraction of carbides was fixed. The hardfacing alloys were deposited twice on a mild steel plate by the self-shielding flux-cored arc-welding method. Fracture toughness was increased by increasing the volume fraction of austenite in the matrix, whereas hardness and abrasion resistance were nearly constant. In situ observation of the fracture process showed that cracks initiated at large primary carbides tended to be blocked at the austenitic matrix. This suggested that fracture toughness was controlled mainly by the amount of austenite in the matrix, thereby yielding the better toughness in the hardfacing alloy having the austenitic matrix. Considering both abrasion resistance and fracture toughness, therefore, the austenitic matrix was preferred for the high-chromium white iron hardfacing alloys.</description><identifier>ISSN: 1073-5623</identifier><identifier>EISSN: 1543-1940</identifier><identifier>DOI: 10.1007/BF02595637</identifier><identifier>CODEN: MMTAEB</identifier><language>eng</language><publisher>New York, NY: Springer</publisher><subject>Applied sciences ; AUSTENITE ; CARBIDES ; CHEMICAL COMPOSITION ; CHROMIUM ALLOYS ; CORRELATIONS ; CRACKS ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Fatigue, corrosion fatigue, embrittlement, cracking, fracture and failure ; Fatigue, embrittlement, and fracture ; FRACTURE PROPERTIES ; HARD FACING ; IRON BASE ALLOYS ; MANGANESE ; MATERIALS SCIENCE ; Metals. 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J</creatorcontrib><title>Correlation of microstructure and fracture toughness in high-chromium white iron hardfacing alloys</title><title>Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science</title><description>A correlation is made of microstructure and fracture toughness in hypereutectic high-chromium white iron hardfacing alloys. In order to investigate the matrix effect of these alloys, in particular, four different matrices such as pearlite, austenite, and a mixture of pearlite and austenite were employed by changing the ratio of Mn/Si, while the total volume fraction of carbides was fixed. The hardfacing alloys were deposited twice on a mild steel plate by the self-shielding flux-cored arc-welding method. Fracture toughness was increased by increasing the volume fraction of austenite in the matrix, whereas hardness and abrasion resistance were nearly constant. In situ observation of the fracture process showed that cracks initiated at large primary carbides tended to be blocked at the austenitic matrix. This suggested that fracture toughness was controlled mainly by the amount of austenite in the matrix, thereby yielding the better toughness in the hardfacing alloy having the austenitic matrix. Considering both abrasion resistance and fracture toughness, therefore, the austenitic matrix was preferred for the high-chromium white iron hardfacing alloys.</description><subject>Applied sciences</subject><subject>AUSTENITE</subject><subject>CARBIDES</subject><subject>CHEMICAL COMPOSITION</subject><subject>CHROMIUM ALLOYS</subject><subject>CORRELATIONS</subject><subject>CRACKS</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Fatigue, corrosion fatigue, embrittlement, cracking, fracture and failure</subject><subject>Fatigue, embrittlement, and fracture</subject><subject>FRACTURE PROPERTIES</subject><subject>HARD FACING</subject><subject>IRON BASE ALLOYS</subject><subject>MANGANESE</subject><subject>MATERIALS SCIENCE</subject><subject>Metals. Metallurgy</subject><subject>MICROSTRUCTURE</subject><subject>PEARLITE</subject><subject>Physics</subject><subject>SILICON</subject><subject>Treatment of materials and its effects on microstructure and properties</subject><subject>WELDING</subject><issn>1073-5623</issn><issn>1543-1940</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNpFkE1LxDAQhosouK5e_AURxINQTTpJP466uCoseNFzmZ2m20ibrEmL7L83soueZgaeeXl5kuRS8DvBeXH_uOSZqlQOxVEyE0pCKirJj-POC0hVnsFpchbCJ-dcVJDPkvXCea97HI2zzLVsMORdGP1E4-Q1Q9uw1uP-GN206awOgRnLOrPpUuq8G8w0sO_OjJoZH0M69E2LZOyGYd-7XThPTlrsg744zHnysXx6X7ykq7fn18XDKiVQYkypzLFt2mZdFlgUIBtQRCQkZLIEUBzkGoXQLVRZIbDEgkCWXApaI3INCPPkap8b-5s6UGxEHTlrNY21hFIpiMzNntl69zXpMNaDCaT7Hq12U6iznFe5rFQEb_fgr47gdVtvvRnQ72rB61_V9b_qCF8fUjEQ9lGYJRP-PrI8BmYCfgDEa36d</recordid><startdate>19961201</startdate><enddate>19961201</enddate><creator>LEE, S</creator><creator>CHOO, S.-H</creator><creator>BAEK, E.-R</creator><creator>AHN, S</creator><creator>KIM, N. 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J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c351t-c86afdfdb87a7734d35ccc143248335034ba11ef39271a8a7c348041cbaa0e3a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Applied sciences</topic><topic>AUSTENITE</topic><topic>CARBIDES</topic><topic>CHEMICAL COMPOSITION</topic><topic>CHROMIUM ALLOYS</topic><topic>CORRELATIONS</topic><topic>CRACKS</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Exact sciences and technology</topic><topic>Fatigue, corrosion fatigue, embrittlement, cracking, fracture and failure</topic><topic>Fatigue, embrittlement, and fracture</topic><topic>FRACTURE PROPERTIES</topic><topic>HARD FACING</topic><topic>IRON BASE ALLOYS</topic><topic>MANGANESE</topic><topic>MATERIALS SCIENCE</topic><topic>Metals. Metallurgy</topic><topic>MICROSTRUCTURE</topic><topic>PEARLITE</topic><topic>Physics</topic><topic>SILICON</topic><topic>Treatment of materials and its effects on microstructure and properties</topic><topic>WELDING</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>LEE, S</creatorcontrib><creatorcontrib>CHOO, S.-H</creatorcontrib><creatorcontrib>BAEK, E.-R</creatorcontrib><creatorcontrib>AHN, S</creatorcontrib><creatorcontrib>KIM, N. J</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>OSTI.GOV</collection><jtitle>Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>LEE, S</au><au>CHOO, S.-H</au><au>BAEK, E.-R</au><au>AHN, S</au><au>KIM, N. J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Correlation of microstructure and fracture toughness in high-chromium white iron hardfacing alloys</atitle><jtitle>Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science</jtitle><date>1996-12-01</date><risdate>1996</risdate><volume>27</volume><issue>12</issue><spage>3881</spage><epage>3891</epage><pages>3881-3891</pages><issn>1073-5623</issn><eissn>1543-1940</eissn><coden>MMTAEB</coden><abstract>A correlation is made of microstructure and fracture toughness in hypereutectic high-chromium white iron hardfacing alloys. In order to investigate the matrix effect of these alloys, in particular, four different matrices such as pearlite, austenite, and a mixture of pearlite and austenite were employed by changing the ratio of Mn/Si, while the total volume fraction of carbides was fixed. The hardfacing alloys were deposited twice on a mild steel plate by the self-shielding flux-cored arc-welding method. Fracture toughness was increased by increasing the volume fraction of austenite in the matrix, whereas hardness and abrasion resistance were nearly constant. In situ observation of the fracture process showed that cracks initiated at large primary carbides tended to be blocked at the austenitic matrix. This suggested that fracture toughness was controlled mainly by the amount of austenite in the matrix, thereby yielding the better toughness in the hardfacing alloy having the austenitic matrix. Considering both abrasion resistance and fracture toughness, therefore, the austenitic matrix was preferred for the high-chromium white iron hardfacing alloys.</abstract><cop>New York, NY</cop><pub>Springer</pub><doi>10.1007/BF02595637</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, 1996-12, Vol.27 (12), p.3881-3891 |
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| subjects | Applied sciences AUSTENITE CARBIDES CHEMICAL COMPOSITION CHROMIUM ALLOYS CORRELATIONS CRACKS Cross-disciplinary physics: materials science rheology Exact sciences and technology Fatigue, corrosion fatigue, embrittlement, cracking, fracture and failure Fatigue, embrittlement, and fracture FRACTURE PROPERTIES HARD FACING IRON BASE ALLOYS MANGANESE MATERIALS SCIENCE Metals. Metallurgy MICROSTRUCTURE PEARLITE Physics SILICON Treatment of materials and its effects on microstructure and properties WELDING |
| title | Correlation of microstructure and fracture toughness in high-chromium white iron hardfacing alloys |
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