Development of Superplastic Duplex Austenitic-Ferritic Stainless Steel 00Cr25Ni7Mo3N

张兰; 王立新; 任学平

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Development of Superplastic Duplex Austenitic-Ferritic Stainless Steel 00Cr25Ni7Mo3N

更新时间：2026-01-21

- Development of Superplastic Duplex Austenitic-Ferritic Stainless Steel 00Cr25Ni7Mo3N
- Special Steel Vol. 26, Issue 6, Pages: 44-46(2005)
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- Received：07 July 2005，
  
  Online First：12 April 2023，
  
  Published：12 April 2005
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张兰, 王立新, 任学平. Development of Superplastic Duplex Austenitic-Ferritic Stainless Steel 00Cr25Ni7Mo3N[J]. Special Steel, 2005, 26(6): 44-46.
DOI：

张兰, 王立新, 任学平. Development of Superplastic Duplex Austenitic-Ferritic Stainless Steel 00Cr25Ni7Mo3N[J]. Special Steel, 2005, 26(6): 44-46. DOI：

摘要

通过电弧炉-电渣重熔工艺开发研制了成分为(%):0.021C

24.16Cr

7.21Ni

2.87Mo

0.17N

0.48Cu超塑性双相不锈钢00Cr25Ni7Mo3N。试验结果表明

00Cr25Ni7Mo3N超塑性双相不锈钢的耐孔蚀性和耐缝隙腐蚀性远高于传统的304L和316L奥氏体不锈钢。在变形温度960℃、应变速率2×10

-3

/s时

00Cr25Ni7Mo3N超塑性双相不锈钢的最高延伸率为960%

该钢超塑性变形的均匀性优于TC4钛合金

可显著减轻构件的重量。

Abstract

The superplastic duplex austenitic-ferritic stainless steel-0.021C

24. 16Cr

7.21Ni

2.87Mo

0. 17N

0.48Cu has been developed by arc furnace + electroslag remelting process. The test results showed that the pitting erosion resistance and the crevice corosion resistance of superplastic duplex stainless steel 00Cr25Ni7Mo3N were much more higher than that of traditional austenite stainless steel 304L and 316L. The maximum elongation of superplastic duplex stainless steel 00Cr25Ni7Mo3N at 960℃ with strain rate 2×10-³/s was 960%

and the uniformity during superplastic deformation of the duplex steel was higher than that of titanium alloy TC4 to obviously decrease the weight of component.

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