JPH03277740A - 伸びフランジ性等にすぐれた高強度鋼板 - Google Patents
伸びフランジ性等にすぐれた高強度鋼板Info
- Publication number
- JPH03277740A JPH03277740A JP3704190A JP3704190A JPH03277740A JP H03277740 A JPH03277740 A JP H03277740A JP 3704190 A JP3704190 A JP 3704190A JP 3704190 A JP3704190 A JP 3704190A JP H03277740 A JPH03277740 A JP H03277740A
- Authority
- JP
- Japan
- Prior art keywords
- martensite
- area ratio
- bainite
- steel sheet
- strength steel
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 36
- 239000010959 steel Substances 0.000 title claims abstract description 36
- 229910000734 martensite Inorganic materials 0.000 claims abstract description 46
- 229910001563 bainite Inorganic materials 0.000 claims abstract description 30
- 229910001568 polygonal ferrite Inorganic materials 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 229910052796 boron Inorganic materials 0.000 claims abstract description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 6
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 229910052793 cadmium Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 17
- 239000002131 composite material Substances 0.000 description 8
- 229910000859 α-Fe Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000000137 annealing Methods 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- -1 and among these Substances 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3704190A JPH03277740A (ja) | 1990-02-16 | 1990-02-16 | 伸びフランジ性等にすぐれた高強度鋼板 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3704190A JPH03277740A (ja) | 1990-02-16 | 1990-02-16 | 伸びフランジ性等にすぐれた高強度鋼板 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5190782A Division JPS58167750A (ja) | 1982-03-29 | 1982-03-29 | 伸びフランジ性等にすぐれた高強度鋼板 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03277740A true JPH03277740A (ja) | 1991-12-09 |
| JPH0572462B2 JPH0572462B2 (en, 2012) | 1993-10-12 |
Family
ID=12486522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3704190A Granted JPH03277740A (ja) | 1990-02-16 | 1990-02-16 | 伸びフランジ性等にすぐれた高強度鋼板 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03277740A (en, 2012) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4894863B2 (ja) | 2008-02-08 | 2012-03-14 | Ｊｆｅスチール株式会社 | 加工性に優れた高強度溶融亜鉛めっき鋼板およびその製造方法 |
-
1990
- 1990-02-16 JP JP3704190A patent/JPH03277740A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0572462B2 (en, 2012) | 1993-10-12 |
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