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COMPOSITION DESIGN OF HIGH-STRENGTH MARTENSITIC PRECIPITATION HARDENING STAINLESS STEELS BASED ON A CLUSTER MODEL
Alternative TitleCOMPOSITION DESIGN OF HIGH-STRENGTH MARTENSITIC PRECIPITATION HARDENING STAINLESS STEELS BASED ON A CLUSTER MODEL
Wang Qing1; Zha Qianfeng1; Liu Enxue1; Dong Chuang1; Wang Xuejun2; Tan Chaoxin2; Ji Chunjun3
2012
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume48Issue:10Pages:1201-1206
AbstractThe present work investigates composition characteristics of martensitic precipitation hardening stainless steels using a cluster-plus-glue-atom model. In this kind of steels based on the basic ternary Fe-Ni-Cr, the lowest solubility limit of high-temperature austenite corresponds to the cluster formula NiFe12Cr-3, where NiFe12 is a cuboctahedron centered by Ni and surrounded by 12 Fe atoms in fcc structure and Cr serves as glue atoms. New multi-component alloys were designed by adding C, Mo, Nb and Cu into the basic NiFe12Cr-3 with self-magnification of cluster formula and similar element substitution. These alloys were prepared by copper mould suction casting method, then solid-solution treated at 1323 K for 2 h followed by water-quenching, and finally aged 753 K for 4 h. The experimental results show that the microstructures and properties of the serial solid-solution treated and aged alloys vary with alloying elements and their contents. Among them, the {(Ni13Cu3)Fe-192(Cr45MO2.5Nb0.5)}C-1 alloy has higher microhardness and tensile strengths, the hardness is 397 RV, yield strength is 971 MPa and ultra strength is 1093 MPa after aging treatment. {(Ni13Cu3)Fe-192(Cr45Mo2.5Nb0.5)}C-1 exhibits good corrosion-resistance in 3.5%NaCl solution.
KeywordMETALLIC GLASSES MICROSTRUCTURE TOUGHNESS ELEMENTS ALLOYS HEAT matensitic precipitation hardening stainless steel cluster-plus-glue-atom model alloying composition design high strength
Indexed ByCSCD
Language英语
CSCD IDCSCD:4656636
Citation statistics
Cited Times:11[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/156268
Collection中国科学院金属研究所
Affiliation1.大连理工大学
2.中国科学院金属研究所
3.大连大学
Recommended Citation
GB/T 7714
Wang Qing,Zha Qianfeng,Liu Enxue,et al. COMPOSITION DESIGN OF HIGH-STRENGTH MARTENSITIC PRECIPITATION HARDENING STAINLESS STEELS BASED ON A CLUSTER MODEL[J]. ACTA METALLURGICA SINICA,2012,48(10):1201-1206.
APA Wang Qing.,Zha Qianfeng.,Liu Enxue.,Dong Chuang.,Wang Xuejun.,...&Ji Chunjun.(2012).COMPOSITION DESIGN OF HIGH-STRENGTH MARTENSITIC PRECIPITATION HARDENING STAINLESS STEELS BASED ON A CLUSTER MODEL.ACTA METALLURGICA SINICA,48(10),1201-1206.
MLA Wang Qing,et al."COMPOSITION DESIGN OF HIGH-STRENGTH MARTENSITIC PRECIPITATION HARDENING STAINLESS STEELS BASED ON A CLUSTER MODEL".ACTA METALLURGICA SINICA 48.10(2012):1201-1206.
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