The enhancement of strengthening dislocated martensite
作者： I-Lin Cheng , G. Thomas
DOI: 10.1007/BF02642056
关键词:
摘要: The basis of this work was the investigation improving tensile properties dislocated martensites by dispersion precipitates in austeniteprior to martensite transformation. Two types precipitation-hardenable austenitic alloys were used. One is based on Fe-22 Ni-4 Mo-0.28 C where are Mo2C and obtained ausforming aging, other Fe-28 Ni-2 Ti coherent fccγ’ (Ni3Ti) ordered phase ausaging. After treatment both transformed quenching liquid nitrogen measured compared conventional heat (i.e. no austenite). results show that prior dispersions increase strength interpreted as being due an dislocation density resulting from multiplication at particles during γ →Ms In addition, stabilities such upon certain aging treatments, transform partially (due precipitation) “composite” materials whose depends volume fraction yield strengths phases present.
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