Acta Metallurgica Sinica (English Letters) ›› 1996, Vol. 9 ›› Issue (5): 379-382.
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L. P. Xu; M. H. Xu; L. Li; Y.A. Min; X.Z Xuand R.H .Liu (Department of Materials Science and Engineering, Shanghai University, Shanghai 200072, China) (Shanghai No.5 Iron and Steel Factory, Shanghai 200940,China)