JPS5591956A - Steel having partial form memory effect - Google Patents
Steel having partial form memory effectInfo
- Publication number
- JPS5591956A JPS5591956A JP16160078A JP16160078A JPS5591956A JP S5591956 A JPS5591956 A JP S5591956A JP 16160078 A JP16160078 A JP 16160078A JP 16160078 A JP16160078 A JP 16160078A JP S5591956 A JPS5591956 A JP S5591956A
- Authority
- JP
- Japan
- Prior art keywords
- point
- steel
- products
- memory effect
- form memory
- 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.)
- Granted
Links
Abstract
PURPOSE: To provide steel having a partial form memory effect by adding 14W20% Mn and adding C so that a specified relation is satisfied between the Mn and C.
CONSTITUTION: A compressive plastic working strain is applied to steel products, and when they are heated to the As point or above and cooled to room temp. below the Ms point, the lengths of the products do not finally return to the point O, i.e. the lengths before the heating but return to the point F, the products being elongated. Such phenomenon is considered to be the partial form memory effect of the products. In case a tensile working strain is applied before the heating, the final lengths shift to the left side of the point O, giving a compressive state. In order to provide such characteristics 14W20% Mn in added to Fe, and C is added in relation to the Mn content while satisfying equation -0.04Mn+0.85≤C≤-0.04Mn+ 1.2. When a bolt or the like is made of steel of this compsn., used to clamp materials, heated to the As point or above, and cooled, the bolt does not return to the original state to prevent the clamped portion from loosening owing to vibration, etc.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53161600A JPS6032706B2 (en) | 1978-12-29 | 1978-12-29 | Steel with partial shape memory effect |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53161600A JPS6032706B2 (en) | 1978-12-29 | 1978-12-29 | Steel with partial shape memory effect |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5591956A true JPS5591956A (en) | 1980-07-11 |
JPS6032706B2 JPS6032706B2 (en) | 1985-07-30 |
Family
ID=15738224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53161600A Expired JPS6032706B2 (en) | 1978-12-29 | 1978-12-29 | Steel with partial shape memory effect |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6032706B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5290372A (en) * | 1990-08-27 | 1994-03-01 | Woojin Osk Corporation | Fe-Mn group vibration damping alloy manufacturing method thereof |
US5634990A (en) * | 1993-10-22 | 1997-06-03 | Woojin Osk Corporation | Fe-Mn vibration damping alloy steel and a method for making the same |
US5891388A (en) * | 1997-11-13 | 1999-04-06 | Woojin Inc. | Fe-Mn vibration damping alloy steel having superior tensile strength and good corrosion resistance |
JP2021503559A (en) * | 2018-05-23 | 2021-02-12 | ファ, マンチャオHE, Manchao | NPR steel materials for rock bolts and their production methods |
-
1978
- 1978-12-29 JP JP53161600A patent/JPS6032706B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5290372A (en) * | 1990-08-27 | 1994-03-01 | Woojin Osk Corporation | Fe-Mn group vibration damping alloy manufacturing method thereof |
US5634990A (en) * | 1993-10-22 | 1997-06-03 | Woojin Osk Corporation | Fe-Mn vibration damping alloy steel and a method for making the same |
US5891388A (en) * | 1997-11-13 | 1999-04-06 | Woojin Inc. | Fe-Mn vibration damping alloy steel having superior tensile strength and good corrosion resistance |
JP2021503559A (en) * | 2018-05-23 | 2021-02-12 | ファ, マンチャオHE, Manchao | NPR steel materials for rock bolts and their production methods |
US11427899B2 (en) | 2018-05-23 | 2022-08-30 | Min Xia | NPR steel material for rock bolt and production method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6032706B2 (en) | 1985-07-30 |
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