JPS5741361A - Heat treatment of mn-a -zr magnet - Google Patents
Heat treatment of mn-a -zr magnetInfo
- Publication number
- JPS5741361A JPS5741361A JP11727680A JP11727680A JPS5741361A JP S5741361 A JPS5741361 A JP S5741361A JP 11727680 A JP11727680 A JP 11727680A JP 11727680 A JP11727680 A JP 11727680A JP S5741361 A JPS5741361 A JP S5741361A
- Authority
- JP
- Japan
- Prior art keywords
- temp
- magnet
- phase
- heat treatment
- soln
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To stably homogenize the titled magnet by cooling an Mn-Al-Zr magnet material to a temp. clse to the γ phase transformation point after soln. heat treatment and by holding it at the temp. followed by rapid cooling to room temp. and tempering.
CONSTITUTION: An Mn-Al-Zr magnet material is subjected to soln. (ε phase) heat treatment at a high temp., naturally cooled to a temp. close to the τ phase transformation point close to about 650°C, and held at the temp. to stably transform the ε phase into τ phase (ferromagnetic phase). After completing the transformation, the material is rapidly cooled to room temp. and tempered at ≥750°C to provide the maximum magnetic characteristics to the Mn-Al-Zr magnet. The resulting magnet is free from the defect of cracking due to a strain produced by hardening from a high temp., and it is stable and homogeneous.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11727680A JPS5741361A (en) | 1980-08-25 | 1980-08-25 | Heat treatment of mn-a -zr magnet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11727680A JPS5741361A (en) | 1980-08-25 | 1980-08-25 | Heat treatment of mn-a -zr magnet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5741361A true JPS5741361A (en) | 1982-03-08 |
Family
ID=14707742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11727680A Pending JPS5741361A (en) | 1980-08-25 | 1980-08-25 | Heat treatment of mn-a -zr magnet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5741361A (en) |
-
1980
- 1980-08-25 JP JP11727680A patent/JPS5741361A/en active Pending
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