JPS62280341A - Highly corrosion resistant cobalt-based stainless alloy - Google Patents
Highly corrosion resistant cobalt-based stainless alloyInfo
- Publication number
- JPS62280341A JPS62280341A JP12456486A JP12456486A JPS62280341A JP S62280341 A JPS62280341 A JP S62280341A JP 12456486 A JP12456486 A JP 12456486A JP 12456486 A JP12456486 A JP 12456486A JP S62280341 A JPS62280341 A JP S62280341A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- amorphous
- corrosion resistance
- based alloy
- highly corrosion
- 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
- 230000007797 corrosion Effects 0.000 title claims abstract description 24
- 238000005260 corrosion Methods 0.000 title claims abstract description 24
- 229910045601 alloy Inorganic materials 0.000 title abstract description 14
- 239000000956 alloy Substances 0.000 title abstract description 14
- 229910017052 cobalt Inorganic materials 0.000 title 1
- 239000010941 cobalt Substances 0.000 title 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract 4
- 229910052726 zirconium Inorganic materials 0.000 claims abstract 4
- 229910052735 hafnium Inorganic materials 0.000 claims abstract 3
- 239000012535 impurity Substances 0.000 claims 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 16
- 239000003929 acidic solution Substances 0.000 abstract description 5
- 239000000460 chlorine Substances 0.000 abstract description 4
- 229910052801 chlorine Inorganic materials 0.000 abstract description 3
- -1 chlorine ions Chemical class 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract 2
- 150000002500 ions Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 230000010287 polarization Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
本発明は高耐食性非晶質コバルト基合金に関するもので
ある。非晶質合金はｔｏ”Ｃ／秒以上の超急冷で液体ま
たは気体を冷却することにより得られる長範囲の原子規
則性をもたないものである。 従来０） ステンレスａ
ＳＵＳ４３０．５ＵＳ３０４．５ＵＳ３１６等のＦｅＣ
ｒ、ＦｅＣｒ−Ｎ１、Ｆ ｅ Ｃｒ Ｎ ｉ Ｍ ｏ合
金は塩素イオンを含まない中性または酸性溶液中におい
て耐食性を示すものである。しかし塩素イオンを含む溶
液、特に酸性溶液中においては良好な耐食性はえらでい
ない。例えば、第１表には代表的な市販ステンレス馴の
３０°Ｃ１■規定塩酸中の腐食速度（ｍ ｍ ７年）を
示したがいずれも数ｍ ｍ ７年であり、２５重量パー
セントと最っともＣｒｆｉの多い２５Ｃｒ２−このよう
に市販の高級ステンレス舖でも塩素を含む酸性溶液中に
おいては耐食性は七分と言えない間頂点があった。Detailed Description of the Invention 3. Detailed Description of the Invention The present invention relates to a highly corrosion resistant amorphous cobalt-based alloy. Amorphous alloys do not have the long-range atomic regularity that can be obtained by cooling a liquid or gas by ultra-quenching at to''C/sec or more. Conventional 0) Stainless steel a
FeC such as SUS430.5US304.5US316
r, FeCr-N1, FeCrNiMo alloys exhibit corrosion resistance in neutral or acidic solutions that do not contain chlorine ions. However, good corrosion resistance is not a given in solutions containing chloride ions, especially in acidic solutions. For example, Table 1 shows the corrosion rate (mm 7 years) of typical commercially available stainless steel in normal hydrochloric acid at 30°C. 25Cr2, both of which have a large amount of Crfi.Even commercially available high-grade stainless steel had a peak corrosion resistance of less than 70% in an acidic solution containing chlorine.
第１表
本発明は、市販の高級ステンレス鋼では十分に耐食性が
得られない塩素イオンを含む酸性溶液中においても極め
て高い耐食性を示す非晶質合金である。Table 1 The present invention is an amorphous alloy that exhibits extremely high corrosion resistance even in acidic solutions containing chloride ions, which do not provide sufficient corrosion resistance with commercially available high-grade stainless steels.
次に本発明の実施例を示す。Next, examples of the present invention will be shown.
実施例１：本合金の非晶質合金は例えば溶融合金を高速
回転している銅ロールの表面に吹き付けることにより幅
約ＬｃｍＳ厚さ約３０μｍのリボン状試料としてえられ
る。非晶質構造はＸ線回折により、散漫な回折リングよ
り判定出来る。Example 1: An amorphous alloy of the present invention is obtained as a ribbon-shaped sample with a width of about L cm and a thickness of about 30 μm, for example, by spraying molten alloy onto the surface of a copper roll rotating at high speed. The amorphous structure can be determined by X-ray diffraction from diffuse diffraction rings.
実施例２：作製したＣｒを２５原子パーセント、Ｚｒを
１０原子パーセント含むＣｏ２５ＭｏｌＯ−Ｚ ｒ非晶
質合金の３０°Ｃ１■規定塩酸中の腐食速度（ｍ ｍ
／年）のＭ ｏ ｌｉによる変化を第１図に示す。０．
１原子パーセントＭ ｏ １１以上で府述の市販ステン
レス鋼より腐食速度は小さくなり２原子パーセントＭ
ｏ ！！・以上では極端に腐食速度は小さくなり、３ケ
月以上の浸績でも腐食速度は測定されず極めて高い耐食
性を示す。なお図中には従来の結晶質Ｃｏ ２５ Ｃｒ
Ｍ ｏ合金のＭ ｏ ｆｉを変えたもので非晶質合金
のような高い耐食性は得られていない。Example 2: Corrosion rate (m m
Fig. 1 shows the changes due to M o li in /year). 0.
At 1 atomic percent M
o! !・With the above, the corrosion rate becomes extremely low, and the corrosion rate is not measured even after soaking for more than 3 months, indicating extremely high corrosion resistance. In the figure, conventional crystalline Co 25 Cr
This is a Mo alloy with a different M o fi, and does not have the high corrosion resistance of an amorphous alloy.
実施例３：第２図には３０ＣＳ １規定塩酸中でのＣｒ
ｍを１５原子パーセント、Ｈｆｆｆ１を１０原子パーセ
ントと一定にした非結晶質Ｇｏ１５ＣｒＭ ｏ Ｉ Ｏ
Ｈｆ合金のＭ ｏ ｍを変え合金の腐食速度（ｍ ｍ
／年）を示すが、３原子パーセントＭｏ以上で３ケ月の
浸Ｉ試験でも腐食しない高耐食性が得られた。 逼
実施例４：第３図には３０Ｃ，Ｉ規定塩酸中の非晶質
Ｃｏ２５ＣｒＣｏ２５Ｃｒ合金の分極曲線を示す。Ｍｏ
量の増加により陽極電流密度は極めて小さくなり、著し
く高耐食性を示す。Example 3: Figure 2 shows Cr in 30CS 1N hydrochloric acid.
Amorphous Go15CrMo I O with m constant at 15 atomic percent and Hfff1 constant at 10 atomic percent
The corrosion rate of the alloy (m m
/year), but at 3 atomic percent Mo or more, high corrosion resistance was obtained that did not corrode even in a 3-month immersion test. Example 4: Figure 3 shows the amorphous material in 30C, I normal hydrochloric acid.
Figure 2 shows a polarization curve of Co25CrCo25Cr alloy. Mo
As the amount increases, the anode current density becomes extremely small, indicating extremely high corrosion resistance.
実施例５：第４図には３０’Ｃ１１規定塩酸中における
非晶質Ｃｏ ｌ ５ＣｒＭｏ １０Ｈｆ合金の分極曲線
を示す。Ｍｏ量の増加により陽極電流密度は極めて小さ
くなり、著しく高耐食性を示す。Example 5: FIG. 4 shows the polarization curve of an amorphous Col 5CrMo 10Hf alloy in 30'C11 normal hydrochloric acid. As the amount of Mo increases, the anode current density becomes extremely small, indicating extremely high corrosion resistance.
以上述べたごとく、この合金は極めて高い耐食性を示す
ので各種用途に用いられる。例えば海水中おけるフィル
ターまた過酷な腐食環境におけるロープ、または複合材
料の強化材として用いられる。As stated above, this alloy exhibits extremely high corrosion resistance and is used for various purposes. For example, they are used as filters in seawater, ropes in harsh corrosive environments, or as reinforcing materials in composite materials.
第１図は３０’Ｃ，Ｉ規定塩酸中の結晶質Ｃ０２５Ｃｒ
Ｍ ｏ 、非晶質Ｃｏ ２５ Ｃｒ Ｍ ｏ Ｉ ０
１ ｒ合金の腐食速度、
第２図は３０°Ｃ，Ｉ規定塩酸中の非晶質Ｃ０１５ｃｒ
Ｃ０１５ｃｒ合金の腐食速度、第３図は３０６Ｃ，Ｉ規
定塩酸中の非結晶Ｃ０２５ＣｒＣ０２５Ｃｒ合金分極曲
線、Figure 1 shows crystalline C025Cr in 30'C, I normal hydrochloric acid.
M o , amorphous Co 25 Cr M o I 0
1 Corrosion rate of R alloy, Figure 2 shows amorphous C015cr in I normal hydrochloric acid at 30°C.
Corrosion rate of C015cr alloy, Figure 3 shows the polarization curve of amorphous C025CrC025Cr alloy in 306C,I normal hydrochloric acid.
Claims (2)
．１−８％、Ｚｒを５−１５％、残部がＣｏおよび不可
避の不純物よりなる高耐食性非晶質合金である。(1) 10-40% Cr and 0 Mo in atomic percent
．． It is a highly corrosion-resistant amorphous alloy consisting of 1-8% Zr, 5-15% Zr, and the balance Co and unavoidable impurities.
．１−８％、Ｈｆを５−１５％、残部がＣｏおよび不可
避の不純物よりなる高耐食性非晶質合金である。(2) 10-40% Cr and 0 Mo in atomic percent
．． It is a highly corrosion-resistant amorphous alloy consisting of 1-8% Hf, 5-15% Hf, and the balance Co and unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12456486A JPS62280341A (en) | 1986-05-29 | 1986-05-29 | Highly corrosion resistant cobalt-based stainless alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12456486A JPS62280341A (en) | 1986-05-29 | 1986-05-29 | Highly corrosion resistant cobalt-based stainless alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62280341A true JPS62280341A (en) | 1987-12-05 |
Family
ID=14888601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12456486A Pending JPS62280341A (en) | 1986-05-29 | 1986-05-29 | Highly corrosion resistant cobalt-based stainless alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62280341A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1466991A1 (en) * | 2003-04-11 | 2004-10-13 | NHK Spring Co., Ltd. | Co-Cr-Mo alloy fine wire, its method of manufacture, and use as a planar body, tubular body, stranded wire and cable |
| EP1818132A3 (en) * | 2005-12-15 | 2010-04-14 | General Electric Company | Braze alloy compositions |
| WO2017033936A1 (en) * | 2015-08-24 | 2017-03-02 | 山陽特殊製鋼株式会社 | Non-magnetic amorphous alloy, and sputtering target material and magnetic recording medium using said alloy |
-
1986
- 1986-05-29 JP JP12456486A patent/JPS62280341A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1466991A1 (en) * | 2003-04-11 | 2004-10-13 | NHK Spring Co., Ltd. | Co-Cr-Mo alloy fine wire, its method of manufacture, and use as a planar body, tubular body, stranded wire and cable |
| US7857916B2 (en) | 2003-04-11 | 2010-12-28 | Nhk Spring Co., Ltd | Co-Cr-Mo alloy fine wire, manufacturing method therefor, and planar body, tubular body, stranded wire and cable formed of wire |
| EP1818132A3 (en) * | 2005-12-15 | 2010-04-14 | General Electric Company | Braze alloy compositions |
| WO2017033936A1 (en) * | 2015-08-24 | 2017-03-02 | 山陽特殊製鋼株式会社 | Non-magnetic amorphous alloy, and sputtering target material and magnetic recording medium using said alloy |
| JP2017045488A (en) * | 2015-08-24 | 2017-03-02 | 山陽特殊製鋼株式会社 | Magnetic recording amorphous alloy, sputtering target material, and magnetic recording medium |
| CN107924689A (en) * | 2015-08-24 | 2018-04-17 | 山阳特殊制钢株式会社 | Non magnetic and amorphous alloy and the sputtering target material and magnetic recording media using the alloy |
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