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A new type of structural material S280
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Science & Technology Review | 2015, 33(11) : 59 - 62
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Science & Technology Review | 2015, 33(11): 59-62
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A new type of structural material S280
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ZHONG Ping1, ZHANG Yeqin1, ZHONG Jinyan2, LIU Mutong1, XIAO Kui3
Affiliations
    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
Published: 2015-06-13 doi: 10.3981/j.issn.1000-7857.2015.11.010
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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.
S280 ultrahigh strength stainless steel  /  structural material properties  /  microstructure
钟平, 张业勤, 钟锦岩, 柳木桐, 肖葵. 一种新型结构材料S280. 科技导报, 2015 , 33 (11) : 59 -62 . DOI: 10.3981/j.issn.1000-7857.2015.11.010
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
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Article Info
doi: 10.3981/j.issn.1000-7857.2015.11.010
  • Receive Date：2014-10-24
  • Online Date：2015-06-11
  • Published：2015-06-13
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  • Received：2014-10-24
  • Revised：2015-03-26
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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