新型TRIP复相钢仅含C、Si、Mn等合金元素，采用临界区等温淬火热处理工艺，获得铁素体、贝氏体和残余奥氏体三相组织。该钢在Ms～Md温度之间形变，应变诱导相变，相变诱发塑性(TRIP)，其力学性能指标特别是伸长率大幅度提高。
Bainite ferrite and retained austenite are obtained through austempering immedidely after inter-critical annealing in dual-phase steel containing C,Si and Mn.The elongation of the steel can be enhanced considerably due to strain-induced martensite transformation and transformation-induced plasticity (TRIP) when it is deformed at a temperature between Ms and Md.
参考文献
| [1] | Rigsbee J M;Verderarend P J .Formable HSLA and Dual-phase steels[J].AIME New York,1977,56 |
| [2] | 士师纯治;後藤克之.残留才-ステナイトを含む高强度钢板の组织现出方法[J].CAMP-ISIJ,1993(06):1698. |
| [3] | K. SUGIMOTO;M. KOBAYASHI;A. NAGASAKA .Warm stretch-formability of TRIP-aided dual-phase sheet steels[J].ISIJ International,1995(11):1407-1414. |
| [4] | Sugimoto K I;Misu M;Kobayashi M .Effects of Second Phase Morphology on Retained Austenite Morphology and Tensile Properties in A TRIP-aided Dual-phase Steel Sheet ISIJ[J].Iut,1993,33:775-782. |
| [5] | 徐祖耀.马氏体相变与马氏体[M].北京:科学出版社,1980:420. |
| [6] | Sakuma Y;Matsumura O;Takechi H .Mechanical Properties and Retained Austenite in Intercritically Heat-treated Bainite-transformd Steel and Their Variation With Si and Mn Additions[J].Metallurgical and Materials Transactions,1991,22:489-498. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%