KR20160045902A - 내템퍼링 취화 특성이 우수한 용접 금속 - Google Patents
내템퍼링 취화 특성이 우수한 용접 금속 Download PDFInfo
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Abstract
Description
도 2a는 입계 탄화물의 개수를 계산하는 방법을 설명하기 위한 제1 개념도이다.
도 2b는 입계 탄화물의 개수를 계산하는 방법을 설명하기 위한 제2 개념도이다.
도 2c는 입계 탄화물의 개수를 계산하는 방법을 설명하기 위한 제3 개념도이다.
도 2d는 입계 탄화물의 개수를 계산하는 방법을 설명하기 위한 제4 개념도이다.
도 3은 인장 시험편의 채취 위치를 나타내는 개략 설명도이다.
도 4는 샤르피 충격 시험편의 채취 위치를 나타내는 개략 설명도이다.
도 5a는 내SR 균열성 시험편의 채취 위치를 나타내는 개략 설명도이다.
도 5b는 내SR 균열성 시험편의 형상을 나타내는 개략 설명도이다.
도 5c는 내SR 균열성 시험편의 채취 방법을 나타내는 개략 설명도이다.
Claims (4)
- Mo:1.20% 이하(「질량%」의 의미. 이하 동일) 및 Cr:2.30% 이하를 함유하는 심선과, Si/SiO2비가 1.0 이상이고 Mo:1.2% 이하를 함유하는 피복제를 구비한 용접봉을, 용접하여 얻어진 용접 금속이며,
C:0.05∼0.15%,
Si:0.1∼0.50%,
Mn:0.60∼1.30%,
Cr:1.80∼3.0%,
Mo:0.80∼1.20%,
V:0.25∼0.50%,
Nb:0.010∼0.050%,
N:0.025% 이하(0%를 포함하지 않음),
O:0.020∼0.060%를 각각 함유하고,
잔량부가 철 및 불가피적 불순물로 이루어지고,
하기 수학식 1에 의해 규정되는 A값이 0.12 이상이며, 또한 용접 금속에 포함되는 원 상당 직경으로 0.5㎛ 초과의 탄화물의 개수가, 입계 길이당 0.25개/㎛ 이하인 것을 특징으로 하는, 내템퍼링 취화 특성이 우수한 용접 금속.
[수학식 1]
단, [V], [Nb], [Cr] 및 [Mo]는, 각각 용접 금속 중의 V, Nb, Cr 및 Mo의 함유량(질량%)을 나타낸다. - 제1항에 있어서, 원 상당 직경으로 2㎛ 초과의 산화물이 100개/㎟ 이하인, 내템퍼링 취화 특성이 우수한 용접 금속.
- 제1항 또는 제2항에 있어서, 다른 원소로서, 하기 원소 중 적어도 하나를 더 함유하는, 내템퍼링 취화 특성이 우수한 용접 금속.
Cu:1.0% 이하(0%를 포함하지 않음)
Ni:1.0% 이하(0%를 포함하지 않음)
B:0.0050% 이하(0%를 포함하지 않음)
W:0.50% 이하(0%를 포함하지 않음)
Al:0.030% 이하(0%를 포함하지 않음)
Ti:0.020% 이하(0%를 포함하지 않음) - 제1항 또는 제2항에 기재된 용접 금속을 구비한, 용접 구조체.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011254318 | 2011-11-21 | ||
| JPJP-P-2011-254318 | 2011-11-21 | ||
| JP2012037810A JP5798060B2 (ja) | 2011-11-21 | 2012-02-23 | 耐焼戻し脆化特性に優れた溶接金属 |
| JPJP-P-2012-037810 | 2012-02-23 | ||
| PCT/JP2012/080170 WO2013077356A1 (ja) | 2011-11-21 | 2012-11-21 | 耐焼戻し脆化特性に優れた溶接金属 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020147013092A Division KR20140084197A (ko) | 2011-11-21 | 2012-11-21 | 내템퍼링 취화 특성이 우수한 용접 금속 |
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| Publication Number | Publication Date |
|---|---|
| KR20160045902A true KR20160045902A (ko) | 2016-04-27 |
| KR101700077B1 KR101700077B1 (ko) | 2017-01-26 |
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| KR1020147013092A Ceased KR20140084197A (ko) | 2011-11-21 | 2012-11-21 | 내템퍼링 취화 특성이 우수한 용접 금속 |
| KR1020167009094A Expired - Fee Related KR101700077B1 (ko) | 2011-11-21 | 2012-11-21 | 내템퍼링 취화 특성이 우수한 용접 금속 |
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| KR1020147013092A Ceased KR20140084197A (ko) | 2011-11-21 | 2012-11-21 | 내템퍼링 취화 특성이 우수한 용접 금속 |
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|---|---|
| US (1) | US9505087B2 (ko) |
| EP (1) | EP2783790A4 (ko) |
| JP (1) | JP5798060B2 (ko) |
| KR (2) | KR20140084197A (ko) |
| CN (1) | CN103945976B (ko) |
| BR (1) | BR112014012077A8 (ko) |
| IN (1) | IN2014CN03584A (ko) |
| WO (1) | WO2013077356A1 (ko) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6084475B2 (ja) * | 2013-02-04 | 2017-02-22 | 株式会社神戸製鋼所 | 溶接金属および溶接構造体 |
| JP6181947B2 (ja) * | 2013-03-07 | 2017-08-16 | 株式会社神戸製鋼所 | 溶接金属 |
| JP6235402B2 (ja) * | 2014-04-17 | 2017-11-22 | 株式会社神戸製鋼所 | 強度、靭性および耐sr割れ性に優れた溶接金属 |
| CN104907733B (zh) * | 2015-07-10 | 2017-10-17 | 中国科学院合肥物质科学研究院 | 一种抗辐照低活化钢气体保护焊用焊丝及其制备方法 |
| KR102165756B1 (ko) | 2016-09-30 | 2020-10-14 | 닛폰세이테츠 가부시키가이샤 | 페라이트계 내열강 용접 구조체의 제조 방법 및 페라이트계 내열강 용접 구조체 |
| CN109623200A (zh) * | 2019-01-18 | 2019-04-16 | 江苏联捷焊业科技有限公司 | 一种兼具高效性和抗裂性的绞合型埋弧药芯焊丝及其制备方法 |
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| JPH08150478A (ja) | 1994-09-30 | 1996-06-11 | Kobe Steel Ltd | 高強度Cr−Mo鋼用サブマージアーク溶接方法及び溶接金属 |
| JP2000301378A (ja) | 1999-04-21 | 2000-10-31 | Sumikin Welding Ind Ltd | 高強度Cr−Mo鋼の溶接方法及び溶接材料並びに溶接鋼構造物 |
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| JP5606985B2 (ja) * | 2011-04-08 | 2014-10-15 | 株式会社神戸製鋼所 | 耐水素脆化感受性に優れた溶接金属 |
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- 2012-02-23 JP JP2012037810A patent/JP5798060B2/ja not_active Expired - Fee Related
- 2012-11-21 WO PCT/JP2012/080170 patent/WO2013077356A1/ja not_active Ceased
- 2012-11-21 BR BR112014012077A patent/BR112014012077A8/pt not_active Application Discontinuation
- 2012-11-21 CN CN201280057244.2A patent/CN103945976B/zh not_active Expired - Fee Related
- 2012-11-21 IN IN3584CHN2014 patent/IN2014CN03584A/en unknown
- 2012-11-21 KR KR1020147013092A patent/KR20140084197A/ko not_active Ceased
- 2012-11-21 KR KR1020167009094A patent/KR101700077B1/ko not_active Expired - Fee Related
- 2012-11-21 US US14/350,985 patent/US9505087B2/en not_active Expired - Fee Related
- 2012-11-21 EP EP12851882.6A patent/EP2783790A4/en not_active Withdrawn
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| JPH02182378A (ja) | 1989-01-09 | 1990-07-17 | Kawasaki Steel Corp | 高強度Cr―Mo鋼のサブマージアーク溶接施工法 |
| JPH02220797A (ja) | 1989-02-21 | 1990-09-03 | Kobe Steel Ltd | Cr―Mo系低合金鋼用被覆アーク溶接棒 |
| JPH06328292A (ja) | 1993-05-24 | 1994-11-29 | Kobe Steel Ltd | 高強度Cr−Mo鋼用サブマージアーク溶接方法 |
| JPH08150478A (ja) | 1994-09-30 | 1996-06-11 | Kobe Steel Ltd | 高強度Cr−Mo鋼用サブマージアーク溶接方法及び溶接金属 |
| JP2000301378A (ja) | 1999-04-21 | 2000-10-31 | Sumikin Welding Ind Ltd | 高強度Cr−Mo鋼の溶接方法及び溶接材料並びに溶接鋼構造物 |
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| JP2008229718A (ja) | 2007-02-19 | 2008-10-02 | Kobe Steel Ltd | 高強度Cr−Mo鋼の溶接金属 |
| JP2009106949A (ja) | 2007-10-26 | 2009-05-21 | Kobe Steel Ltd | 高強度Cr−Mo鋼の溶接金属 |
| EP2674241A1 (en) * | 2011-02-09 | 2013-12-18 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Weld metal with excellent creep characteristics |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5798060B2 (ja) | 2015-10-21 |
| EP2783790A4 (en) | 2015-03-11 |
| JP2013128982A (ja) | 2013-07-04 |
| BR112014012077A8 (pt) | 2017-06-20 |
| CN103945976A (zh) | 2014-07-23 |
| CN103945976B (zh) | 2016-06-01 |
| WO2013077356A1 (ja) | 2013-05-30 |
| US9505087B2 (en) | 2016-11-29 |
| KR101700077B1 (ko) | 2017-01-26 |
| EP2783790A1 (en) | 2014-10-01 |
| BR112014012077A2 (pt) | 2017-06-13 |
| KR20140084197A (ko) | 2014-07-04 |
| US20140294491A1 (en) | 2014-10-02 |
| IN2014CN03584A (ko) | 2015-09-25 |
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