Title:
HIGH TEMPERATURE SHAPE MEMORY ALLOY, MANUFACTURING METHOD THEREOF, AND ACTUATOR AND ENGINE MADE THEREOF
Document Type and Number:
Japanese Patent JP2022114989
Kind Code:
A
Abstract:
To provide a high temperature shape memory alloy subject to martensite transformation at a high temperature.SOLUTION: A high temperature shape memory alloy contains a total amount of Ti (titanium), Zr (zirconium), and V (vanadium) of 45 atom% or more and 55 atom% or less, each of Ti, ZR, and V of at least 10 atom% or more, and the balance of Pd (palladium), Ni (nickel), and inevitable impurities. A ratio of Pd and Ni is 1:2 or more and 2:1 or less. In the high temperature shape memory alloy, among martensite transformation temperatures, a martensite finishing temperature (Mf) satisfies a temperature range of 350°C or higher and 990°C or lower, and an austenite finishing temperature (Af) satisfies a temperature range of 550°C or higher and 1,105°C or lower.SELECTED DRAWING: None
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Inventors:
MATSUDA HIROMICHI
MITARAI YOKO
MURAKAMI HIDEYUKI
MATSUNAGA TETSUYA
MITARAI YOKO
MURAKAMI HIDEYUKI
MATSUNAGA TETSUYA
Application Number:
JP2021011518A
Publication Date:
August 08, 2022
Filing Date:
January 27, 2021
Export Citation:
Assignee:
NAT INST MATERIALS SCIENCE
International Classes:
C22C30/00; C22F1/16
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