JP2014145106A5 - - Google Patents
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- JP2014145106A5 JP2014145106A5 JP2013013943A JP2013013943A JP2014145106A5 JP 2014145106 A5 JP2014145106 A5 JP 2014145106A5 JP 2013013943 A JP2013013943 A JP 2013013943A JP 2013013943 A JP2013013943 A JP 2013013943A JP 2014145106 A5 JP2014145106 A5 JP 2014145106A5
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- JP
- Japan
- Prior art keywords
- molten salt
- corrosion resistance
- contained
- based alloy
- fluoride molten
- 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.)
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- KRHYYFGTRYWZRS-UHFFFAOYSA-M fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 9
- 239000011780 sodium chloride Substances 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 1
Description
本発明は、上記知見に基づいてなされたものであって、
「（１）質量％で、
Ｃｒ：６〜８％、
Ｍｏ：１５〜１７％、
Ｆｅ：０．０５〜２％、
Ｍｎ：０．０５〜０．２％、
Ｓｉ：０．０１〜０．２％、
Ｖ：０．００１〜０．０８％、
Ｂ：０．０００１〜０．０１％、
Ｍｇ：０．００１〜０．０２％、
Ｎ：０．００１〜０．０４％、
Ａｌ：０．００５〜０．１％、
Ｔｉ：０．００５〜０．１％ を含有し、
残りがＮｉおよび不可避不純物から成り、不可避不純物としてのＣ： ０．０１％以下であることを特徴とするフッ化物溶融塩に対する耐食性に優れたＮｉ基合金。
（２）質量％で、
Ｃｒ：６〜８％、
Ｍｏ：１５〜１７％、
Ｆｅ：０．０５〜２％、
Ｍｎ：０．０５〜０．２％、
Ｓｉ：０．０１〜０．２％、
Ｖ：０．００１〜０．０８％、
Ｂ：０．０００１〜０．０１％、
Ｍｇ：０．００１〜０．０２％、
Ｎ：０．００１〜０．０４％、
Ａｌ：０．００５〜０．１％、
Ｔｉ：０．００５〜０．１％ を含有し、
さらに
Ｃｕ：０．０１〜０．３５％を含有し、
残りがＮｉおよび不可避不純物から成り、不可避不純物としてのＣ： ０．０１％以下であることを特徴とするフッ化物溶融塩に対する耐食性に優れたＮｉ基合金。
（３）前記（１）または（２）に記載のＮｉ基合金からなるフッ化物溶融塩に対する耐食性に優れた装置構成部材。」
を特徴とするものである。
The present invention has been made based on the above findings,
“(1) Mass %,
Cr: 6-8%
Mo: 15-17%,
Fe: 0.05-2%,
Mn: 0.05-0.2%
Si: 0.01 to 0.2%,
V: 0.001 to 0.08%,
B: 0.0001 to 0.01%
Mg: 0.001 to 0.02%,
N: 0.001 to 0.04%,
Al: 0.005 to 0.1%,
Ti: 0.005 to 0.1% is contained,
A Ni-based alloy excellent in corrosion resistance to a fluoride molten salt, characterized in that the remainder consists of Ni and inevitable impurities, and C: 0.01% or less as an inevitable impurity.
(2) In mass %,
Cr: 6-8%
Mo: 15-17%,
Fe: 0.05-2%,
Mn: 0.05-0.2%
Si: 0.01 to 0.2%,
V: 0.001 to 0.08%,
B: 0.0001 to 0.01%
Mg: 0.001 to 0.02%,
N: 0.001 to 0.04%,
Al: 0.005 to 0.1%,
Ti: 0.005 to 0.1% is contained,
Furthermore, Cu: 0.01 to 0.35% is contained,
A Ni-based alloy excellent in corrosion resistance to a fluoride molten salt, characterized in that the remainder consists of Ni and inevitable impurities, and C: 0.01% or less as an inevitable impurity.
(3) An apparatus component having excellent corrosion resistance against a fluoride molten salt made of the Ni-based alloy according to (1) or (2). "
It is characterized by.
Ｃｒ：
Ｃｒは、フッ化物溶融塩に対して耐食性を劣化させる元素である一方、フッ化物溶融塩に直接接しない、例えば、大気酸化を抑制する元素として最低限の含有が必要となる。高温の耐酸化性を向上させるためには、６質量％（以下、「質量％」を単に「％」で示す。）以上のＣｒを含有が必要であるが、８％を超えて含有するとフッ化物溶融塩に対する耐食性が著しく劣化する。そのため、Ｃｒの含有量を６〜８％とした。好ましくは、Ｃｒ：６．５〜７．５％である。
Cr:
While Cr is an element that degrades corrosion resistance with respect to a fluoride molten salt, it needs to be contained at a minimum as an element that does not directly contact the fluoride molten salt, for example, suppresses atmospheric oxidation. Fluoride in order to improve the high temperature oxidation resistance, 6% by weight it is necessary contains (hereinafter, "mass%" is simply indicated by "%".) Or more Cr, the content exceeding 8% Corrosion resistance to chemical molten salt is significantly deteriorated. Therefore, the content of Cr is set to 6 to 8%. Preferably, Cr: 6.5 to 7.5%.
Claims (3)
Ｃｒ：６〜８％、
Ｍｏ：１５〜１７％、
Ｆｅ：０．０５〜２％、
Ｍｎ：０．０５〜０．２％、
Ｓｉ：０．０１〜０．２％、
Ｖ：０．００１〜０．０８％、
Ｂ：０．０００１〜０．０１％、
Ｍｇ：０．００１〜０．０２％、
Ｎ：０．００１〜０．０４％、
Ａｌ：０．００５〜０．１％、
Ｔｉ：０．００５〜０．１％ を含有し、
残りがＮｉおよび不可避不純物から成り、不可避不純物としてのＣ： ０．０１％以下であることを特徴とするフッ化物溶融塩に対する耐食性に優れたＮｉ基合金。 % By mass
Cr: 6-8%
Mo: 15-17%,
Fe: 0.05-2%,
Mn: 0.05-0.2%
Si: 0.01 to 0.2%,
V: 0.001 to 0.08%,
B: 0.0001 to 0.01%
Mg: 0.001 to 0.02%,
N: 0.001 to 0.04%,
Al: 0.005 to 0.1%,
Ti: 0.005 to 0.1% is contained,
A Ni-based alloy excellent in corrosion resistance to a fluoride molten salt, characterized in that the remainder consists of Ni and inevitable impurities, and C: 0.01% or less as an inevitable impurity.
Ｃｒ：６〜８％、
Ｍｏ：１５〜１７％、
Ｆｅ：０．０５〜２％、
Ｍｎ：０．０５〜０．２％、
Ｓｉ：０．０１〜０．２％、
Ｖ：０．００１〜０．０８％、
Ｂ：０．０００１〜０．０１％、
Ｍｇ：０．００１〜０．０２％、
Ｎ：０．００１〜０．０４％、
Ａｌ：０．００５〜０．１％、
Ｔｉ：０．００５〜０．１％ を含有し、
さらに
Ｃｕ：０．０１〜０．３５％を含有し、
残りがＮｉおよび不可避不純物から成り、不可避不純物としてのＣ： ０．０１％以下であることを特徴とするフッ化物溶融塩に対する耐食性に優れたＮｉ基合金。 % By mass
Cr: 6-8%
Mo: 15-17%,
Fe: 0.05-2%,
Mn: 0.05-0.2%
Si: 0.01 to 0.2%,
V: 0.001 to 0.08%,
B: 0.0001 to 0.01%
Mg: 0.001 to 0.02%,
N: 0.001 to 0.04%,
Al: 0.005 to 0.1%,
Ti: 0.005 to 0.1% is contained,
Furthermore, Cu: 0.01 to 0.35% is contained,
A Ni-based alloy excellent in corrosion resistance to a fluoride molten salt, characterized in that the remainder consists of Ni and inevitable impurities, and C: 0.01% or less as an inevitable impurity.
An apparatus component having excellent corrosion resistance against a fluoride molten salt comprising the Ni-based alloy according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013013943A JP6041345B2 (en) | 2013-01-29 | 2013-01-29 | Ni-base alloy excellent in corrosion resistance to fluoride molten salt and device component made of Ni-base alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013013943A JP6041345B2 (en) | 2013-01-29 | 2013-01-29 | Ni-base alloy excellent in corrosion resistance to fluoride molten salt and device component made of Ni-base alloy |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014145106A JP2014145106A (en) | 2014-08-14 |
| JP2014145106A5 true JP2014145106A5 (en) | 2016-02-04 |
| JP6041345B2 JP6041345B2 (en) | 2016-12-07 |
Family
ID=51425583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013013943A Active JP6041345B2 (en) | 2013-01-29 | 2013-01-29 | Ni-base alloy excellent in corrosion resistance to fluoride molten salt and device component made of Ni-base alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6041345B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925925B (en) * | 2016-07-15 | 2017-06-16 | 中国科学院上海应用物理研究所 | Heat treatment method after the welding of anti-fused salt corrosion nickel base superalloy welding structural element |
| CN110643858B (en) * | 2019-11-08 | 2020-10-30 | 中国科学院上海应用物理研究所 | Method for improving tellurium corrosion resistance of nickel-based superalloy and nickel-based superalloy |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3576622A (en) * | 1968-05-29 | 1971-04-27 | Atomic Energy Commission | Nickel-base alloy |
| JPS5928550A (en) * | 1982-08-07 | 1984-02-15 | Kubota Ltd | High hardness and high corrosion resistant alloy |
| JPH064900B2 (en) * | 1984-12-19 | 1994-01-19 | 日立金属株式会社 | Corrosion resistance High strength Ni-based alloy |
-
2013
- 2013-01-29 JP JP2013013943A patent/JP6041345B2/en active Active
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