Secondary Recrystallization of Nickel-Base Superalloy CM 247 LC After Processing by Metal Injection Molding

doi:10.1007/s11661-020-06087-3

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	Secondary Recrystallization of Nickel-Base Superalloy CM 247 LC After Processing by Metal Injection Molding
	Sheng, Naicheng 1,2; Meyer, Andreas 1; Horke, Katharina 4; Korner, Carolin 1,3; Singer, Robert F.1,3
刊名	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
	2020-11-25
页码	8
ISSN号	1073-5623
DOI	10.1007/s11661-020-06087-3
通讯作者	Sheng, Naicheng(ncsheng@imr.ac.cn)
英文摘要	Fabrication of parts by metal injection molding (MIM) results in very fine grain sizes. In the present investigation, heat treatments were employed to gain a larger grain size that is more creep resistant. The alloy under investigation was CM 247 LC. The composition was slightly modified to facilitate grain growth. Secondary recrystallization was observed to occur during post-sintering annealing treatments approximately 50 degrees C below the sintering temperature. The grain size increased from 25 mu m to > 2 mm. The increase of grain size was found to improve creep strength significantly. The samples in the as-sintered condition exhibited a bimodal grain size distribution. The grain size in a thin surface zone after sintering was slightly increased because of a lower C and O content in this zone that promoted normal grain growth. Secondary recrystallization did not occur in the surface zone. This is attributed to a lack of driving force in this area.
资助项目	Rolls-Royce Deutschland[20T1312A] ; Bundesministerium fur Wirtschaft und Energie BMWi (Federal Ministry for Economic Affairs and Energy)[20T1312A] ; Sieglinde Muller at Schunk Sintermetalltechnik GmbH
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000592566500001
资助机构	Rolls-Royce Deutschland ; Bundesministerium fur Wirtschaft und Energie BMWi (Federal Ministry for Economic Affairs and Energy) ; Sieglinde Muller at Schunk Sintermetalltechnik GmbH
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/141451]
专题	金属研究所_中国科学院金属研究所
通讯作者	Sheng, Naicheng
作者单位	1.Friedrich Alexander Univ Erlangen Nuremberg FAU, Joint Inst Adv Mat & Proc ZMP, Dr Mack Str 81, D-90762 Furth, Germany 2.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 3.Friedrich Alexander Univ Erlangen Nuremberg FAU, Dept Mat Sci, Inst Mat Sci & Engn Met WTM, Martensstr 5, D-91052 Erlangen, Germany 4.Rolls Royce Deutschland Ltd & Co KG, Eschenweg 11, D-15827 Dahlewitz, Blankenfelde Ma, Germany
推荐引用方式 GB/T 7714	Sheng, Naicheng,Meyer, Andreas,Horke, Katharina,et al. Secondary Recrystallization of Nickel-Base Superalloy CM 247 LC After Processing by Metal Injection Molding[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2020:8.
APA	Sheng, Naicheng,Meyer, Andreas,Horke, Katharina,Korner, Carolin,&Singer, Robert F..(2020).Secondary Recrystallization of Nickel-Base Superalloy CM 247 LC After Processing by Metal Injection Molding.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,8.
MLA	Sheng, Naicheng,et al."Secondary Recrystallization of Nickel-Base Superalloy CM 247 LC After Processing by Metal Injection Molding".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2020):8.