J4 ›› 2010, Vol. 07 ›› Issue (4): 676-679.

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Mossbauer Spectroscopy of 10Ni and 18Ni Maraging Steels on the Stages of Ageing

WANG Ling1, |YU Bo1, |HUANG Ying1, |LIU Mi lan1, |YIN Zhong da2, HU Xin3   

  1. 1. Test Science Experiment Center, Jilin University, Changchun 130021, China;2. |College of Materials Science and Engineering, Harbin University of Technology, Harbin 150001, China;3. Institute of the Quartermaster,  |General Logistics Department of the PLA, Beijing 100010, China
  • Received:2010-01-12 Online:2010-07-26 Published:2011-06-14
  • Contact: LIU Mi lan E-mail:liuml@jlu.edu.cn

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Abstract:

 Stages of ageing mechanism of 10Ni and 18Ni maraging steels were studied by means of Mssbauer spectroscopy of 10Ni and 18Ni maraging steels. The results show that  Fe\|Co\|rich and Fe-Ni-Mo-rich regions existed in the steels. Mo atom migrated rapidly at the initial stages of ageing. The paramagnetic intermetallic compounds were observed in the 10Ni maraging steel after ageing  for 30 min,  and  in the 18Ni maraging steel after ageing for  15 min. From the change in hyperfine field, the bond probability of Fe atom with the nearest Co atom increases with increasing the ageing time.

Key words: Mossbauer effect, 10Ni and 18Ni maraging steel, modulated structure, hyperfine field

CLC Number: 

  • O472.5
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