Structure and Properties of Ultra-Low Carbon Maraging Steel 00Cr13Ni7Co5Mo4W

姜越; 贾强; 黎士强

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Structure and Properties of Ultra-Low Carbon Maraging Steel 00Cr13Ni7Co5Mo4W

更新时间：2026-01-21

- Structure and Properties of Ultra-Low Carbon Maraging Steel 00Cr13Ni7Co5Mo4W
- Special Steel Vol. 35, Issue 5, Pages: 64-67(2014)
- 作者机构：
  
  哈尔滨理工大学应用科学学院,哈尔滨,150080
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：05 May 2014，
  
  Online First：01 September 2022，
  
  Published：01 September 2014
- 稿件说明：
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姜越, 贾强, 黎士强. Structure and Properties of Ultra-Low Carbon Maraging Steel 00Cr13Ni7Co5Mo4W[J]. Special Steel, 2014, 35(5): 64-67.
DOI：

姜越, 贾强, 黎士强. Structure and Properties of Ultra-Low Carbon Maraging Steel 00Cr13Ni7Co5Mo4W[J]. Special Steel, 2014, 35(5): 64-67. DOI：

摘要

试验用00Cr13Ni7Co5Mo4W钢(/%:0.007C

13.23Cr

7.02Ni

5.06Co

3.72Mo

0.96W)由50 kg真空感应炉熔炼

铸成10 kg锭

锻成55 mm×55 mm方坯并轧成3 mm×60 mm带材。利用热力学计算软件ThermoCalc分析该钢的析出行为

并采用金相显微镜、透射电镜和动电位极化法

研究了该钢的组织结构、力学性能和腐蚀性能。结果表明

R相是马氏体时效不锈钢在时效处理过程中的主要强化相;为获得细小、弥散的R相和良好的强韧性配合

确定最佳热处理工艺为1100℃固溶+490℃时效

钢的抗拉强度、屈服强度和伸长率分别为1 320MPa、1 450 MPa和10.8%;马氏体时效不锈钢00Cr13Ni7Co5Mo4W点蚀击穿电位为230 mV

人工海水中年平均腐蚀率为1.51μm/a

具有较好的耐腐蚀性能。

Abstract

The test steel 00Cr13Ni7Co5Mo4W (/% ： 0.007C

13.23Cr

7.02Ni

5.06Co

3.72Mo

0.96W) is melted by a 50 kg vacuum induction furnace

cast to 10 kg ingot

forged to 55 mm x 55 mm billet and rolled to 3 mm x 60 mm strip. The precipitating behavior of the steel is analyzed by thermodynamic calculation software Thermo-Calc

and the structure

mechanical properties and corrosion performance of the steel are studied by optical

transmission electron microscope and potentiodynamic polarization method. Results show that R phase is main strengthening phase in the maraging stainless steel during aging process ； in order to get fine

dispersed R phase and better combination of strength-toughness of steel

the optimum heat treated process is defined that is solid-solution treating at 1100 ℃ + aging at 490 ℃

and the tensile strength

yield strength and elongation of the steel are respectively 1450 MPa

1320 MPa and 10.8% ； the breakdown potential and the annual corrosion rate in artificial sea water of maraging stainless steel 00Cr13Ni7CoMo4W are respectively 230 mV and 1.51 μm/a

it has better corrosion resistance.

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