COBALT-BASED ALLOY PRODUCT AND COBALT-BASED ALLOY ARTICLE
Download Read
Applicant
Ltd. Mitsubishi Hitachi Power Systems
Representative
Strehl Schübel-Hopf & Partner
Application number
EP19797977A1
Kind
A1
Document number
3936632
Shortcuts
→Abstract
→Claims
→References by patents

Classifications

COBALT-BASED ALLOY PRODUCT AND COBALT-BASED ALLOY ARTICLE

3936632 - EP19797977A1 - EPO

Application Mar 07, 2019 - Publication Jan 12, 2022

Yuting WANG Shinya IMANO

Abstract

There is provided a cobalt-based alloy product comprising: in mass %, 0.08-0.25% C; 0.1% or less B; 10-30% Cr; 5% or less Fe and 30% or less Ni, the total amount of Fe and Ni being 30% or less; W and/or Mo, the total amount of W and Mo being 5-12%; Ti, Nb and Ta, the total amount of Ti, Nb and Ta being 0.5-2%; 0.5% or less Si; 0.5% or less Mn; 0.003-0.04% N; and the balance being Co and impurities. The impurities include 0.5% or less Al, less than 0.05% Zr, and 0.04% or less O. The product is a polycrystalline body of matrix phase crystal grains. In the matrix phase crystal grains, segregation cells with an average size of 0.13-2 µm are formed, in which components constituting an MC type carbide phase comprising Ti, Nb and/or Ta are segregated in boundary regions of the segregation cells.

Description

Claims

Patent References

Patent Publication Date Title
JPSHOU611986243143A N/A N/A
JPHEI71995179967A N/A N/A
JP2016535169A N/A N/A
Back to top

Statistics

Seen <100 times
Downloaded <100 times