|
|||||
|
|
| 一种新型结构材料S280 | |
| 引用本文： | 钟平,张业勤,钟锦岩,柳木桐,肖葵. 一种新型结构材料S280[J]. 科技导报(北京), 2015, 33(11): 59-62. DOI: 10.3981/j.issn.1000-7857.2015.11.010 |
| 作者姓名： | 钟平 张业勤 钟锦岩 柳木桐 肖葵 |
| 作者单位： | 1. 中航工业北京航空材料研究院, 北京100095; 2. 北京航空航天大学材料科学与工程学院, 北京100191; 3. 北京科技大学材料科学与工程学院, 北京100083 |
| 摘 要： | S280 是一种超高强度不锈钢, 采用低碳马氏体相变强化和时效强化叠加, 靠析出强化获得所需的强度。使用状态下的基体组织为低碳板条马氏体, 主要强化相为Fe2Mo 等, 抗拉强度σb为1920～1930 MPa, 断裂韧度KIC为95～100 MPa √m, 具有比300M 和AerMet100 更好的耐腐蚀性能, 主要用于抗腐蚀性能要求高的超高强度构件。 |
| 关 键 词： | S280 超高强度不锈钢 结构材料性能 微观组织结构 |
| 收稿时间： | 2014-10-24 |
A new type of structural material S280 |
|
| ZHONG Ping,ZHANG Yeqin,ZHONG Jinyan,LIU Mutong,XIAO Kui. A new type of structural material S280[J]. Science & Technology Review, 2015, 33(11): 59-62. DOI: 10.3981/j.issn.1000-7857.2015.11.010 | |
| Authors: | ZHONG Ping ZHANG Yeqin ZHONG Jinyan LIU Mutong XIAO Kui |
| Affiliation: | 1. AVIC Beijing Institute of Aeronautical Materials, Beijing 100095, China; 2. School of Materials Science and Engineering, Beihang University, Beijing 100191, China; 3. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
| Abstract: | A highly alloyed ultra-high strength stainless steel S280 has been in use for many years. After quenching and aging, the microstructure of S280 is composed of highly dislocated lath martensite and some carbides which strengthen the alloy. The steel enjoys excellent combined mechanical properties, the typical mechanical property values are as follows: the ultimate strength of 1920 to 1930 MPa, the plane fracture toughness KIC of 95 to 100 MPa √m. The corrosion resistance of the new ultra-high strength steel S280 is much better than that of AerMet100 and 300M in the NaCl solution. The steel S280 can meet the requirements of aerospace applications, and be widely used for the high strength parts with corrosion resistance. |
| Keywords: | S280 ultrahigh strength stainless steel structural material properties microstructure |
| 本文献已被 CNKI 等数据库收录！ | |
| 点击此处可从《科技导报(北京)》浏览原始摘要信息 | |
| 点击此处可从《科技导报(北京)》下载全文 | |