通过新的成分设计和综合应用超洁净化技术和金属间化合物及碳化物的时效沉淀强化技术，成功设计了一种新型的超高强度不锈钢。该钢的抗拉强度Rm可达1940 MPa，KIC大于90 MPa·m1/2，并且具有较高的疲劳性能及高温力学性能，在海洋大气及海水全浸的环境下，该钢的耐腐蚀性能与15-5PH不锈钢相当，且明显优于同强度级别的Aermet100钢。
A new ultra-high strength stainless steel with ultra-high purity has been successfully developed through the-pre-cipitation hardening of intermetallic compound and carbide and ultra-clean. The results show that its tensile strength Rm is 1 940 MPa,and the fracture toughness,KIC,is more than 90 MPa·m1/2. Besides,it also shows good fatigue and high-tem-perature mechanical properties. The corrosion resistance of the steel is equivalent to that of 15-5PH stainless steel under the condition of the marine atmosphere and sea water immersion,which is much better than that of AerMet100 steel at the same strength level. Due to the excellent combination of mechanical and anti-corrison properties,the developed steel is ex-pected to be widely used in the fields of aviation,aerospace,advanced machinery,and nuclear.
参考文献
| [1] | 姜越,尹钟大,朱景川,李明伟.马氏体时效不锈钢的发展现状[J].特殊钢,2003(03):1-5. |
| [2] | Beddoes J;Parr J G.Introduction to stinless steels[M].USA:Matetials Park,OH,ASM International,1999:20. |
| [3] | 刘振宝,宋为顺,杨志勇,李全安,梁剑雄.时效对超高强马氏体时效不锈钢组织与性能的影响[J].材料热处理学报,2005(04):52-55,64. |
| [4] | 徐匡迪.中国特钢生产60年[J].钢铁,2014(07):2-7. |
| [5] | Dulmaine B A;Kosa T;Martin J W .High-strength,notch-duc-tile precipitation-hardening stainless steel alloy[P].U S,5681,528,1997-10-28. |
| [6] | Kuehmann Charles J.Computational design of high-strength,high-toughness stainless steel for carrier-based aircraft[A].United States:Airan Perez,2004 |
| [7] | 刘振宝,杨志勇,雍歧龙,梁剑雄,卢伦.固溶处理对新型马氏体时效不锈钢力学性能的影响[J].钢铁,2007(03):47-51. |
| [8] | 梁剑雄;宋为顺;赵先存 .σ0.2≥880 MPa耐海水腐蚀铁素体时效不锈钢的研究[J].钢铁,2001,36(S):149. |
| [9] | 尹航,李金许,宿彦京,褚武扬,乔利杰.马氏体时效钢的研究现状与发展[J].钢铁研究学报,2014(03):1-4,9. |
| [10] | Ayman Fathy;Taha Mattar;Hoda EI-Faramawy .Mechanical properties of new low-nickel cobalt-free maraging steels[J].Steel Research,2002(12):549-556. |
| [11] | Lo K H;Shek C H;Lai J K L .Recent developments in stainless steels[J].Materials Science and Engineering:R,2009,65(4):50. |
| [12] | M.Sagradi;D.Pulino-Sagraki;R.E.Medrano .The effect of the microstructure on the superplasticity of a duplex stainless steel[J].Acta materialia,1998(11):3857-3862. |
| [13] | 张秀丽,陈明昕,刘振宝,梁剑雄,杨志勇,余强.热处理工艺对15-5PH沉淀硬化不锈钢的力学性能与耐蚀性的影响[J].钢铁,2014(8):70-75. |
| [14] | Youliang He;Stephane Godet;John J. Jonas .Representation of misorientations in Rodrigues-Frank space: application to the Bain, Kurdjumov-Sachs, Nishiyama-Wassermann and Pitsch orientation relationships in the Gibeon meteorite[J].Acta materialia,2005(4):1179-1190. |
| [15] | Ayer R;Machmei Er P .On the characteristic of M2C carbide in the peak hardening regime of AerMet100 steel[J].Metall and Mater Trans:A,1998,29(3):903. |
| [16] | Vasudevan V K;Kim S J;Wayman C M .Precipitation reac-tions and strengthening behavior in 18 Wt Pct nickel maraging steels[J].Metall Trans:A,1990,2l(10):2655. |
| [17] | PING LIU;A. H. STIGENBERG;J.-O. NILSSON .QUASICRYSTALLINE AND CRYSTALLINE PRECIPITATION DURING ISOTHERMAL TEMPERING IN A 12Cr-9Ni-4Mo MARAGING STAINLESS STEEL[J].Acta Metallurgica et Materialia,1995(7):2881-2890. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%