ISSN：1003-8620

CN：42-1243/TF

Governed by: CITIC Pacific Special Steel Group Co., LTD

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Special Steel ›› 2009, Vol. 30 ›› Issue (3): 63-65.

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Effect of Titanium Content on Mechanical Properties of Nickel Base Alloy Inconel 690

Chou Yingyu1,2, Cheng Shichang2, Liu Zhengdong2, Liao Pibo1,  Zhang Qianzhen1,2   

  1. 1 Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology. Kunming 650093 ；
    2 Institute for Structural Materials, Central Iron and Steel Research Institute, Beijingl00081
  • Received:2008-11-17 Online:2009-06-01 Published:2022-11-25

钛含量对Inconel 690镍基合金力学性能的影响

丑英玉1,2, 程世长2, 刘正东2, 廖丕博1, 张钱珍1,2   

  1. 1昆明理工大学机电工程学院，昆明650093；
    2钢铁研究总院结构材料研究所，北京100081
  • 作者简介:丑英玉(1983-),男，助理工程师,2004年沈阳理工大学毕业,Ni基高温合金研究。

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Abstract: Effect of Ti content (0. 35% ~ 1. 10% ) on structure and mechanical properties at ambient and 350 °C for nickel base alloy Inconel 690 (% : 0. 034 〜0. 036C, 29. 40 〜29. 68Cr, 9. 11 〜9. 22Fe, 0. 34 〜0. 36 Al, 0.004 4 〜 0. 004 5N) solid solution treated at 950 〜1 100℃  , water quenched and aged at 715 °C for 15 ~ 100 h, air cooled has been studied. Results showed that the strength (Rm and RP0.2) of 1. 10% Ti alloy was by 200 ~ 400 MPa higher than that of 0. 35% 〜0. 70% Ti alloy, the main reason of increasing strength was 3. 70% ~3. 99% γ′ strengthening phase precipitated in 1. 10% Ti allov after aging at 715 °C , while only 0 - 0. 53% γ' strengthening phase precipitated in 0. 35% - 0. 70% Ti alloy after aging at 715°C .

摘要： 研究了Ti含量(0.35%～1.10%)对Inconel 690镍基合金(%:0.034～0.036C、29.40～29.68Cr、9.11～9.22Fe、0.34～0.36A1、0.004 4～0.004 5N)950～1 100℃水冷+715℃15～100 h空冷后的室温和350℃的组织和力学性能。结果表明,含1.10%Ti合金的强度(Rm和Rp0.2)较含0.35%～0.70%Ti合金的强度高200～400 MPa,强度提高的主要原因为715℃时效后1.10%Ti合金析出3.70%～3.99%γ′强化相,而0.35%～0.70%Ti合金715℃时效后γ′强化相析出量仅为0～0.53%。

关键词: Inconel 690镍基合金, 钛含量, 力学性能

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