Volume 27 Issue 1
Jan.  2001
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CHEN Yong-lai, CHEN Liang-shan, DONG Xiu-zhonget al. Study of Storage Effect of Super-Strength Steel 37SiMnCrNiMoV[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(1): 1-4. (in Chinese)
Citation: CHEN Yong-lai, CHEN Liang-shan, DONG Xiu-zhonget al. Study of Storage Effect of Super-Strength Steel 37SiMnCrNiMoV[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(1): 1-4. (in Chinese)

Study of Storage Effect of Super-Strength Steel 37SiMnCrNiMoV

  • Received Date: 13 Sep 1999
  • Publish Date: 31 Jan 2001
  • Super-strength steel 37SiMnCrNiMoV is widely used in aerospace and astrospace because of the high specific strength. However the service life of the pressure vessel made of steel 37SiMnCrNiMoV will be decreased after long-term storage in air environment, the phenomenon is called storage effect. Stress corrosion crack test is used to evaluate the storage effect. Effects of storage time and hydrogen-elimination treatment after storage in the buffer solution on the stress corrosion crack time are studied. Results show that the substance of storage effect is a process, in which hydrogen from the environment is induced to material and is gathered at the stress-peak fields by second internal stress, then making the microcracks produced in the tip of the inclusions.

     

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  • [1] 陈亮山.低合金超高强度钢高压容器的研制 .金情75-051,1975. [2] 陈亮山.高压气瓶使用的断裂控制 .金情79-016,1979. [3] 黄建中.超高强度钢的应力腐蚀问题研究[J].新金属材料,1976(2):32~41. [4] 肖纪美.合金能量学[M]. 上海:上海科技出版社, 1985. 137~138.
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