TW200738891A - High heat input butt-welded joint having excellent brittle fracture generation resisting property and method for verifying brittle fracture generation resisting property of high heat input butt-welded joint - Google Patents
High heat input butt-welded joint having excellent brittle fracture generation resisting property and method for verifying brittle fracture generation resisting property of high heat input butt-welded jointInfo
- Publication number
- TW200738891A TW200738891A TW095111979A TW95111979A TW200738891A TW 200738891 A TW200738891 A TW 200738891A TW 095111979 A TW095111979 A TW 095111979A TW 95111979 A TW95111979 A TW 95111979A TW 200738891 A TW200738891 A TW 200738891A
- Authority
- TW
- Taiwan
- Prior art keywords
- welded joint
- high heat
- brittle fracture
- heat input
- resisting property
- Prior art date
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The subject of the present invention is to form a welded joint having excellent brittle fracture generation resisting properties (fracture toughness value Kc) in high heat input butt-welding for a high strength thick steel plate, and to verify the properties. The solution of the present invention is that in the welded joint, (a1) the ratio between the hardness Hv(WM) of a weld metal and the hardness Hv(BM) of a base material, Hv(WM)/HIV (BM) is < 1.1, or (a2) the hardness Hv(WM) of the weld metal is ≤ 210, and also, the fracture toughness value Kc of the weld zone satisfies (b1) > 2,000 N/mm1.5 or (b2) Kc ≥ Kq(= σD[square root of](πa), σD: design stress, and a: assumed defective dimensions). Its brittle fracture generation resisting properties (fracture toughness value Kc) are verified by confirming the facts that actual hardness value satisfies the above (a1) or (a2) and actual absorbed energy vE satisfies requirement vE and using predicted Kc value based on transition temperature vTrs.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW095111979A TW200738891A (en) | 2006-04-04 | 2006-04-04 | High heat input butt-welded joint having excellent brittle fracture generation resisting property and method for verifying brittle fracture generation resisting property of high heat input butt-welded joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW095111979A TW200738891A (en) | 2006-04-04 | 2006-04-04 | High heat input butt-welded joint having excellent brittle fracture generation resisting property and method for verifying brittle fracture generation resisting property of high heat input butt-welded joint |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200738891A true TW200738891A (en) | 2007-10-16 |
TWI334446B TWI334446B (en) | 2010-12-11 |
Family
ID=44211877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW095111979A TW200738891A (en) | 2006-04-04 | 2006-04-04 | High heat input butt-welded joint having excellent brittle fracture generation resisting property and method for verifying brittle fracture generation resisting property of high heat input butt-welded joint |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW200738891A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI391204B (en) * | 2008-07-28 | 2013-04-01 | Nippon Steel Corp | Fatigue characteristics of the welded joint improved blow treatment method, the fatigue property improving the blow treatment device and the fusible structure having excellent fatigue resistance |
-
2006
- 2006-04-04 TW TW095111979A patent/TW200738891A/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI391204B (en) * | 2008-07-28 | 2013-04-01 | Nippon Steel Corp | Fatigue characteristics of the welded joint improved blow treatment method, the fatigue property improving the blow treatment device and the fusible structure having excellent fatigue resistance |
Also Published As
Publication number | Publication date |
---|---|
TWI334446B (en) | 2010-12-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2206798B1 (en) | Process for production of turbine rotor | |
CN100515647C (en) | Method of welding low alloy high strength steel | |
JP5273266B2 (en) | Double pipe and welded structure using the same | |
Krasnorutskyi et al. | Metallurgical investigations on electron beam welded duplex stainless steels | |
WO2007049367A1 (en) | Weld joint and process for producing the same | |
Tejado et al. | Thermomechanical characterisation of W-Eurofer 97 brazed joints | |
Mvola et al. | DISSIMILAR HIGH-STRENGTH STEELS: FUSION WELDED JOINTS, MISMATCHES, AND CHALLENGES. | |
TW200738891A (en) | High heat input butt-welded joint having excellent brittle fracture generation resisting property and method for verifying brittle fracture generation resisting property of high heat input butt-welded joint | |
JP2013202691A (en) | Method of joining two or more components, method of providing erosion resistance to the component, and turbine blade | |
Laitinen et al. | Physical simulation for evaluating heat-affected zone toughness of high and ultra-high strength steels | |
Long et al. | Fatigue performance of spot welded and weld bonded advanced high strength steel sheets | |
Daneshpour et al. | Failure behaviour of laser spot welds of TRIP800 steel sheets under coach–peel loading | |
Uchihara et al. | Tailored Blanks of High Strength Steels—Comparison of Welding Processes | |
Čamagić et al. | Influence of temperature on fracture toughness values in different regions of A-387 Gr. B welded joint | |
JPH0270390A (en) | Gas pressure welding method for dissimilar materials | |
Džindo et al. | Experimental determining of fracture behaviour of P460NL1 steel welded joint specimens | |
Pała et al. | Verification of strength of the welded joints by using of the Aramis video system | |
Kim et al. | Applicability of welding for repair/reinforcement of overage bridges | |
Siltanen | Influence of Welding Parameters on the Mechanical Properties of a Laser-Welded Joint | |
Hayashi et al. | Technical basis for the exemptions to mandatory post weld heat treatment (PWHT) of SA-738 grade B for sec. III div. 1 subsection NE application | |
GAO | Development of 30Cr06A, a high strength cast steel and its welding ability | |
Takashima et al. | Fracture toughness evaluation of laser beam-welded joints of 780 MPa-strength class steel | |
CN1970214A (en) | Gas protection welding wire for high-tensile structural steel | |
Bae et al. | Fatigue Crack Growth Rate in Low ΔK Range According to the Microstructure and Temperature in P122 Alloy Weldment | |
Camagić et al. | Impact of temperature and exploitation time on plane strain fracture toughness, k-ic, in a welded joint |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |