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SYNTHESIS OF LASER HIGH ENTROPY ALLOYING COATING ON THE SURFACE OF SINGLE-ELEMENT Fe BASE ALLOY
Alternative TitleSYNTHESIS OF LASER HIGH ENTROPY ALLOYING COATING ON THE SURFACE OF SINGLE-ELEMENT Fe BASE ALLOY
Zhang Song; Wu Chenliang; Wang Chao; Yi Junzhen; Zhang Chunhua
2014
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume50Issue:5Pages:555-560
AbstractFeCoCrAlCu laser high entropy alloying coating has been synthetized by high power semiconductor laser alloying of equimolar ratio of Co, Cr, Al, Cu four elements mixture powder on the surface of single-element Fe base alloy Q235 steel. The microstructure, constituent phases, composition distribution and mechanical properties of FeCoCrAlCu laser high entropy alloying coating were investigated by SEM, XRD, EDS and microhardness tester. Experimental results show that the principal element of Fe in the single-element base alloy Q235 substrate participates surface alloying process during the laser irradiation, forming FeCoCrAlCu five principal high entropy alloy coating. The alloying coating is composed of simple bcc solid solution and the microstructure is mainly composed of typical dendritic structure. Intermediate phase sigma with tetragonal structure merely appears near the interface between laser alloying coating and substrate. From the surface of high entropy alloying coating to substrate, it presents the gradual distribution of the mixing entropy from high entropy, medium entropy to low entropy. the microhardness of FeCoCrAlCu laser high entropy alloying coating reaches 8.3 GPa, which is three times as much as that of the Q235 substrate.
KeywordWEAR BEHAVIOR PRINCIPAL ELEMENTS MICROSTRUCTURE SOLIDIFICATION PERFORMANCE RESISTANCE single-element base alloy laser alloying FeCoCrAlCu high entropy alloy coating
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China] ; [Natural Science Foundation of Liaoning Province of China] ; [Shenyang Science and Technology Funded Projects]
CSCD IDCSCD:5141009
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/149203
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Zhang Song,Wu Chenliang,Wang Chao,et al. SYNTHESIS OF LASER HIGH ENTROPY ALLOYING COATING ON THE SURFACE OF SINGLE-ELEMENT Fe BASE ALLOY[J]. ACTA METALLURGICA SINICA,2014,50(5):555-560.
APA Zhang Song,Wu Chenliang,Wang Chao,Yi Junzhen,&Zhang Chunhua.(2014).SYNTHESIS OF LASER HIGH ENTROPY ALLOYING COATING ON THE SURFACE OF SINGLE-ELEMENT Fe BASE ALLOY.ACTA METALLURGICA SINICA,50(5),555-560.
MLA Zhang Song,et al."SYNTHESIS OF LASER HIGH ENTROPY ALLOYING COATING ON THE SURFACE OF SINGLE-ELEMENT Fe BASE ALLOY".ACTA METALLURGICA SINICA 50.5(2014):555-560.
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