NDLI: Microstructures and Mechanical Properties of Biomedical Co-29Cr-6Mo-0.14N Alloys Processed by Hot Rolling

Content Provider	Springer Nature Link
Author	Mori, Manami Yamanaka, Kenta Sato, Shigeo Wagatsuma, Kazuaki Chiba, Akihiko
Copyright Year	2012
Abstract	The effect of hot rolling on the microstructural evolution and mechanical properties of biomedical Co-29Cr-6Mo-0.14N (mass pct) alloys has been investigated. The alloy strength increases with increasing hot-rolling reduction; the specimen hot rolled to 92.8 pct (equivalent strain of 3.04) exhibits a yield stress as high as 1100 MPa, which is twice that of the conventionally prepared specimens, with no significant loss in ductility. The grain size hardly changed after hot rolling to 60.0 pct, whereas a specimen hot rolled to 92.8 pct has finer grains. The hot-rolled specimens exhibit deformed microstructures with many deformation twins and dislocation boundaries. The accumulated strain increases monotonically with increasing hot-rolling reduction, although short annealing occurs on each hot-rolling pass. The strengthening mechanism in the hot-rolled Co-29Cr-6Mo-0.14N alloys is discussed by considering the dislocation and grain refinement strengthening.
Starting Page	3108
Ending Page	3119
Page Count	12
File Format	PDF
ISSN	10735623
Journal	Metallurgical and Materials Transactions A
Volume Number	43
Issue Number	9
e-ISSN	15431940
Language	English
Publisher	Springer US
Publisher Date	2012-04-05
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Structural Materials Characterization and Evaluation of Materials Surfaces and Interfaces, Thin Films Nanotechnology Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Metals and Alloys Condensed Matter Physics

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