IMR OpenIR
Effect of phosphorus on mechanical properties of fine-grained GH4133 nickel base superalloy
Sun, WR; Guo, SR; Meng, XN; Li, N; Hu, ZQ
Corresponding AuthorSun, WR(wrsun@imr.ac.cn)
2004-05-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume40Issue:5Pages:477-482
AbstractApposite phosphorus content can improve the mechanical properties of the finegrained GH4133 nickel-base superalloy. The grain size of the alloy was refined to ASTM 8-10 grade by controlling the thermal processing and the heat treatment. The tensile specimens fail by intergranular fracture even when the phosphorus level is as high as 0.140% (mass fraction). The yield and ultimate strengths of the refined alloy are 200 and 150 MPa higher than that of the alloy with a standard microstructure of ASTM 4-5 grain size, respectively. And the above two strengths of the alloy with 0.140% phosphorus are 100 and 50 MPa higher than those of the alloy with a industrial controlled phosphorus level, say 0.005%. The impact specimens fail by intragranular fracture when the phosphorus level is below 0.023% and the fracture toughness of the alloy is higher than 70 MJ/m(2). Some parts of the fracture surface of the impact specimen with 0.140% phosphorus exhibited intergranular fracture characteristics and the fracture toughness is lowered to about 40 MJ/m(2). Phosphorus extends the rupture life of the GH4133 alloy and its optimum addition is around 0.011%. The interaction between phosphorus atmosphere and dislocations is discussed to understand the effect of phosphorus on different type of mechanical properties.
Keywordphosphorus Ni base superalloy mechanical property
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000221838900007
PublisherSCIENCE CHINA PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80973
Corresponding AuthorSun, WR
AffiliationChinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Sun, WR,Guo, SR,Meng, XN,et al. Effect of phosphorus on mechanical properties of fine-grained GH4133 nickel base superalloy[J]. ACTA METALLURGICA SINICA,2004,40(5):477-482.
APA Sun, WR,Guo, SR,Meng, XN,Li, N,&Hu, ZQ.(2004).Effect of phosphorus on mechanical properties of fine-grained GH4133 nickel base superalloy.ACTA METALLURGICA SINICA,40(5),477-482.
MLA Sun, WR,et al."Effect of phosphorus on mechanical properties of fine-grained GH4133 nickel base superalloy".ACTA METALLURGICA SINICA 40.5(2004):477-482.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Sun, WR]'s Articles
[Guo, SR]'s Articles
[Meng, XN]'s Articles
Baidu academic
Similar articles in Baidu academic
[Sun, WR]'s Articles
[Guo, SR]'s Articles
[Meng, XN]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Sun, WR]'s Articles
[Guo, SR]'s Articles
[Meng, XN]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.