CN1418978A - 抗疲劳龟裂扩展性优良的钢材及其制造方法 - Google Patents
抗疲劳龟裂扩展性优良的钢材及其制造方法 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 99
- 239000010959 steel Substances 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims description 41
- 239000000463 material Substances 0.000 title abstract description 19
- 230000002929 anti-fatigue Effects 0.000 title description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 62
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 32
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 238000007669 thermal treatment Methods 0.000 claims description 11
- 230000001186 cumulative effect Effects 0.000 claims description 10
- 238000005496 tempering Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 5
- 229910052748 manganese Inorganic materials 0.000 abstract description 5
- 229910052804 chromium Inorganic materials 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 3
- 229910052759 nickel Inorganic materials 0.000 abstract description 3
- 229910052796 boron Inorganic materials 0.000 abstract description 2
- 229910052758 niobium Inorganic materials 0.000 abstract description 2
- 229910052710 silicon Inorganic materials 0.000 abstract description 2
- 229910052719 titanium Inorganic materials 0.000 abstract description 2
- 229910052720 vanadium Inorganic materials 0.000 abstract description 2
- 125000004122 cyclic group Chemical group 0.000 abstract 4
- 229910000746 Structural steel Inorganic materials 0.000 abstract 2
- 238000005336 cracking Methods 0.000 description 73
- 238000012360 testing method Methods 0.000 description 54
- 230000007797 corrosion Effects 0.000 description 29
- 238000005260 corrosion Methods 0.000 description 29
- 238000005098 hot rolling Methods 0.000 description 26
- 239000013535 sea water Substances 0.000 description 16
- 238000009661 fatigue test Methods 0.000 description 13
- 230000006866 deterioration Effects 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- 239000011651 chromium Substances 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 239000011572 manganese Substances 0.000 description 10
- 239000010955 niobium Substances 0.000 description 9
- 238000005070 sampling Methods 0.000 description 9
- 239000011575 calcium Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- 238000009863 impact test Methods 0.000 description 7
- 230000003252 repetitive effect Effects 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 239000012266 salt solution Substances 0.000 description 6
- 238000003698 laser cutting Methods 0.000 description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000035939 shock Effects 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 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001374 Invar Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 241000863032 Trieres Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000002650 habitual effect Effects 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000011158 quantitative evaluation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Description
钢No | C(%) | Si(%) | Mn(%) | Cu(%) | Ni(%) | Cr(%) | Mo(%) | V(%) | Nb(%) | Ti(%) | Al(%) | B(%) | Ca(%) | Ceq(%) | 板厚(mm) | Ar3(℃) | Ar1(℃) |
1 | 0.09 | 0.23 | 1.10 | - | - | - | - | - | - | - | 0.027 | - | - | 0.283 | 8 | 794 | 694 |
2 | 0.10 | 0.30 | 1.30 | - | - | - | - | - | - | - | 0.031 | - | - | 0.329 | 10 | 776 | 691 |
3 | 0.09 | 0.22 | 1.46 | - | - | - | - | - | 0.014 | 0.018 | 0.025 | - | - | 0.343 | 15 | 768 | 688 |
4 | 0.06 | 0.44 | 1.51 | - | - | 0.16 | - | - | 0.025 | 0.018 | 0.024 | - | - | 0.362 | 25 | 774 | 688 |
5 | 0.06 | 0.45 | 1.50 | - | - | 0.16 | 0.15 | - | 0.026 | 0.012 | 0.031 | - | - | 0.398 | 50 | 772 | 687 |
6 | 0.08 | 0.30 | 1.54 | - | - | - | 0.14 | 0.057 | 0.034 | 0.017 | 0.024 | - | - | 0.388 | 40 | 762 | 685 |
7 | 0.06 | 0.18 | 1.38 | 0.26 | 0.27 | 0.12 | 0.29 | 0.039 | 0.039 | 0.018 | 0.025 | - | - | 0.404 | 40 | 747 | 682 |
8 | 0.05 | 0.11 | 1.47 | 0.32 | 0.29 | - | - | - | 0.011 | - | 0.025 | 0.0010 | - | 0.307 | 25 | 761 | 681 |
9 | 0.07 | 0.13 | 1.62 | 0.28 | 0.21 | - | - | 0.045 | 0.031 | 0.015 | 0.021 | - | 0.0024 | 0.354 | 25 | 748 | 681 |
10 | 0.05 | 0.05 | 1.55 | - | - | 0.92 | 0.58 | - | - | 0.013 | 0.025 | 0.0011 | - | 0.641 | 50 | 725 | 691 |
11 | 0.12 | 0.12 | 0.95 | - | - | 0.73 | 0.25 | 0.041 | - | 0.019 | 0.022 | 0.0009 | - | 0.495 | 50 | 781 | 704 |
12 | 0.14 | 0.17 | 1.08 | - | - | 0.63 | 0.34 | 0.035 | 0.016 | 0.022 | 0.035 | 0.0010 | - | 0.541 | 50 | 758 | 700 |
13 | 0.05 | 0.12 | 1.02 | - | - | - | - | - | - | - | 0.032 | - | - | 0.225 | 10 | 814 | 695 |
14 | 0.11 | 0.42 | 1.53 | - | - | 0.92 | 0.55 | - | - | 0.022 | 0.035 | 0.0011 | - | 0.704 | 50 | 710 | 693 |
15 | 0.01 | 0.43 | 1.55 | - | - | - | - | - | - | - | 0.035 | - | - | 0.286 | 25 | 789 | 685 |
16 | 0.25 | 0.45 | 1.22 | - | - | - | - | - | - | - | 0.027 | - | - | 0.472 | 25 | 741 | 695 |
17 | 0.10 | 0.72 | 1.23 | - | - | - | - | - | - | - | 0.027 | - | - | 0.335 | 25 | 787 | 692 |
18 | 0.14 | 0.35 | 0.40 | 23 | 0.23 | 0.13 | 0.35 | - | - | - | 0.033 | - | - | 0.341 | 25 | 793 | 701 |
19 | 0.11 | 0.43 | 2.13 | - | - | - | - | - | - | - | 0.035 | - | - | 0.483 | 25 | 711 | 676 |
20 | 0.07 | 0.51 | 1.47 | - | - | - | - | - | - | - | 0.115 | - | - | 0.336 | 25 | 777 | 687 |
21 | 0.09 | 0.22 | 1.45 | - | - | - | - | - | 0.120 | 0.018 | 0.025 | - | - | 0.341 | 25 | 772 | 688 |
22 | 0.08 | 0.42 | 1.38 | - | - | - | - | - | 0.025 | 0.110 | 0.032 | - | - | 0.328 | 25 | 781 | 689 |
23 | 0.11 | 0.44 | 0.83 | - | - | 1.25 | - | - | 0.025 | 0.018 | 0.024 | - | - | 0.517 | 25 | 797 | 714 |
24 | 0.10 | 0.45 | 0.75 | - | - | 0.16 | 1.10 | - | 0.026 | 0.012 | 0.031 | - | - | 0.551 | 25 | 735 | 692 |
25 | 0.05 | 0.22 | 0.65 | 1.60 | 0.83 | - | - | - | 0.011 | - | 0.025 | 0.0010 | - | 0.188 | 25 | 771 | 686 |
26 | 0.10 | 0.30 | 0.91 | - | - | - | 0.15 | 0.112 | 0.034 | 0.017 | 0.024 | - | - | 0.310 | 25 | 800 | 696 |
27 | 0.07 | 0.21 | 1.12 | 0.32 | 0.29 | - | - | - | 0.011 | - | 0.025 | 0.0025 | - | 0.273 | 25 | 782 | 688 |
28 | 0.07 | 0.13 | 1.42 | 0.23 | 0.21 | - | - | 0.058 | 0.028 | 0.012 | 0.023 | - | 0.011 | 0.321 | 25 | 765 | 684 |
钢No | 重复软化参数σ15/σ1 | 疲劳龟裂扩展速度(×10-5mm/周期) | 拉伸试验 | 摆锤式冲击试验 |
1 | 0.935 | 3.84 | ○ | ○ |
2 | 0.927 | 3.77 | ○ | ○ |
3 | 0.889 | 3.16 | ○ | ○ |
4 | 0.863 | 2.87 | ○ | ○ |
5 | 0.820 | 1.92 | ○ | ○ |
6 | 0.845 | 2.38 | ○ | ○ |
7 | 0.811 | 1.72 | ○ | ○ |
8 | 0.931 | 3.88 | ○ | ○ |
9 | 0.881 | 2.99 | ○ | ○ |
10 | 0.657 | 0.42 | ○ | ○ |
11 | 0.738 | 1.12 | ○ | ○ |
12 | 0.712 | 0.83 | ○ | ○ |
13 | 0.869 | 3.64 | △ | ○ |
14 | 0.624 | 0.21 | ○ | △ |
15 | 0.980 | 4.95 | △ | ○ |
16 | 0.788 | 1.34 | ○ | △ |
17 | 0.921 | 3.54 | ○ | △ |
18 | 1.092 | 5.95 | △ | ○ |
19 | 0.776 | 1.68 | ○ | △ |
20 | 0.882 | 3.25 | ○ | △ |
21 | 0.886 | 3.22 | ○ | △ |
22 | 0.925 | 3.57 | ○ | × |
23 | 0.775 | 1.58 | ○ | △ |
24 | 0.764 | 1.60 | ○ | △ |
25 | 1.120 | 6.32 | ○ | × |
26 | 0.930 | 3.78 | ○ | △ |
27 | 1.052 | 5.67 | ○ | △ |
28 | 0.934 | 3.76 | ○ | △ |
记号 | 制造条件 |
A | 再加热到900℃,然后以20℃/s的冷却速度冷却至室温。 |
B | 再加热到900℃,然后以20℃/s的冷却速度冷却至室温之后,回火至500℃。 |
C | 再加热到900℃,然后以20℃/s的冷却速度冷却至室温之后,再加热到750℃,然后以15℃/s的冷却速度冷却至室温。 |
D | 再加热到900℃,然后以20℃/s的冷却速度冷却至室温之后,再加热到780℃,然后以20℃/s的冷却速度冷却至室温之后,回火至450℃。 |
E | 经热轧后,从830℃以20℃/s的冷却速度冷却至500℃。 |
F | 经热轧后,从800℃以25℃/s的冷却速度冷却至450℃,之后回火至400℃。 |
G | 经热轧后,从750℃以30℃/s的冷却速度冷却至室温。 |
H | 经热轧后,从800℃以30℃/s的冷却速度冷却至室温,再加热到750℃,然后以25℃/s的冷却速度冷却至室温。 |
I | 再加热到650℃,然后以20℃/s的冷却速度冷却至室温。 |
J | 再加热到900℃,然后以3℃/s的冷却速度冷却至室温,之后回火至450℃。 |
K | 再加热到900℃,然后以20℃/s的冷却速度冷却至室温,之后再加热到660℃,然后以15℃/s的冷却速度冷却至室温。 |
L | 再加热到900℃,然后以20℃/s的冷却速度冷却至室温,之后再加热到780℃,然后以3℃/s的冷却速度冷却至室温,之后回火至400℃。 |
M | 经热轧后,从830℃以20℃/s的冷却速度冷却至600℃。 |
N | 经热轧后,从800℃以25℃/s的冷却速度冷却至450℃,之后回火至700℃。 |
O | 经热轧后,从650℃以30℃/s的冷却速度冷却至室温。 |
P | 经热轧后,从750℃以30℃/s的冷却速度冷却至室温,之后再加热到650℃,然后以25℃/s的冷却速度冷却至室温。 |
制造条件 | 重复软化参数σ15/σ1 | 疲劳龟裂扩展速度(×10-5mm/周期) | 拉伸试验 | 摆锤式冲击试验 |
A | 0.852 | 2.42 | ○ | ○ |
B | 0.911 | 3.21 | ○ | ○ |
C | 0.831 | 1.98 | ○ | ○ |
D | 0.912 | 3.05 | ○ | ○ |
E | 0.875 | 2.61 | ○ | ○ |
F | 0.891 | 2.97 | ○ | ○ |
G | 0.860 | 2.85 | ○ | ○ |
H | 0.855 | 2.47 | ○ | ○ |
I | 1.105 | 6.24 | △ | × |
J | 1.011 | 5.03 | △ | △ |
K | 0.976 | 4.98 | ○ | × |
L | 0.987 | 5.01 | △ | × |
M | 0.979 | 4.95 | ○ | ○ |
N | 0.981 | 4.96 | △ | × |
O | 0.993 | 5.02 | △ | ○ |
P | 0.984 | 4.88 | ○ | × |
钢No. | 重复软化参数σ15/σ1 | 疲劳龟裂扩展速度(×10-5mm/周期) | 随环境变化的疲劳龟裂扩展速度的加速度 | 备注 | |
大气中 | 海水中 | ||||
3 | 0.889 | 3.16 | 17.38 | 5.5 | 本发明 |
4 | 0.863 | 2.87 | 17.79 | 6.2 | 本发明 |
5 | 0.820 | 1.92 | 9.22 | 4.8 | 本发明 |
7 | 0.811 | 1.72 | 9.98 | 5.8 | 本发明 |
12 | 0.712 | 0.83 | 4.23 | 5.1 | 本发明 |
15 | 0.980* | 4.95 | 24.26 | 4.9 | 比较例 |
18 | 1.092* | 5.95 | 36.30 | 6.1 | 比较例 |
25 | 1.120* | 6.32 | 34.76 | 5.5 | 比较例 |
27 | 1.052* | 5.67 | 33.45 | 5.9 | 比较例 |
试验环境 | 海水中 | 海水中 | 海水中 | 海水中 | 海水中 | 海水中 | 氯饱和 | 1%食盐水 | 3%食盐水 | |
试验温度 | 室温 | 室温 | 室温 | 60℃ | 室温 | 室温 | 室温 | 室温 | 室温 | |
试验面 | 机械加工 | 机械加工 | 机械加工 | 机械加工 | 等离子体切割 | 激光切割 | 机械加工 | 机械加工 | 机械加工 | |
负荷方式 | 轴向力 | 弯曲力 | 扭力 | 轴向力 | 轴向力 | 轴向力 | 轴向力 | 轴向力 | 轴向力 | |
钢No. | 3 | 450 | 630 | 360 | 440 | 430 | 410 | 400 | 460 | 450 |
4 | 420 | - | - | 410 | 410 | 410 | 410 | 440 | 420 | |
5 | 410 | - | - | - | 400 | 400 | 410 | - | - | |
7 | 420 | - | - | - | 400 | 410 | - | - | - | |
12 | 430 | - | - | - | 420 | 430 | - | - | - | |
15* | 290 | - | - | - | 250 | - | - | - | - | |
18* | 290 | - | - | - | 240 | - | - | - | - | |
25* | 270 | 380 | 220 | 260 | 220 | 210 | 230 | 280 | 270 | |
27* | 300 | - | - | - | 240 | 220 | - | - | - |
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JP2002-134471 | 2002-05-09 | ||
JP2002134471 | 2002-05-09 |
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- 2002-11-12 EP EP02025246A patent/EP1312690B1/en not_active Expired - Lifetime
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- 2002-11-14 KR KR1020020070549A patent/KR100545599B1/ko active IP Right Grant
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EP1312690A1 (en) | 2003-05-21 |
CN1165633C (zh) | 2004-09-08 |
DE60213736D1 (de) | 2006-09-21 |
KR100545599B1 (ko) | 2006-01-25 |
KR20030040150A (ko) | 2003-05-22 |
DE60213736T2 (de) | 2007-08-16 |
EP1312690B1 (en) | 2006-08-09 |
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