Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
NICKEL-BASE ALLOY, HEAT-RESISTANT AND CORROSION RESISTANT COMPONENT, AND COMPONENT FOR HEAT-TREATMENT FURNACE
Document Type and Number:
WIPO Patent Application WO/2021/132350
Kind Code:
A1
Abstract:
The present invention provides a nickel-base alloy with outstanding corrosion resistance and mechanical strength at high temperatures, a heat-resistant and corrosion-resistant component, and a component for a heat-treatment furnace. This nickel-base alloy comprises, by mass percentage, more than 5.0% and no more than 26.0% of aluminum and more than 0% and no more than 5.0% zirconium, with the remainder being nickel and unavoidable impurities. It is preferable that the nickel-base alloy include boron and that the total quantity, by mass percentage, of zirconium and boron be more than 0% and no more than 5.0%. Moreover, it is preferable that P value, which equals −18.95 + 0.1956 × Ni% + 0.1977 × Al% + 0.2886 × Zr% + 12.45 × B%, and Q value, which indicates the area ratio of Ni3Al deposited on the surface as a proportion, satisfy the condition Q value ≥ 0.89 × P value − 0.53.

Inventors:
KAMITSUJI AYANO (JP)
ASANO SOICHI (JP)
ENJO YOHEI (JP)
HASHIMOTO KUNIHIDE (JP)
Application Number:
PCT/JP2020/048202
Publication Date:
July 01, 2021
Filing Date:
December 23, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KUBOTA KK (JP)
International Classes:
F27B7/00; C22C19/03; F27D1/00
Foreign References:
JPS55110748A1980-08-26
JPS62274042A1987-11-28
JPS5669342A1981-06-10
JP2011504809A2011-02-17
US20150292062A12015-10-15
Attorney, Agent or Firm:
MARUYAMA & CO. (JP)
Download PDF: