AN ELECTRON DIFFRACTION ANALYSIS OF THE SECOND PHASES IN A 18Ni-Co-Mo-Ti MARAGING STEEL
Ye Hengqinag;Zou Bensan Institute of Metal Research; Academia Sinica
Cite this article:
Ye Hengqinag;Zou Bensan Institute of Metal Research; Academia Sinica. AN ELECTRON DIFFRACTION ANALYSIS OF THE SECOND PHASES IN A 18Ni-Co-Mo-Ti MARAGING STEEL. Acta Metall Sin, 1979, 15(1): 69-191.
Abstract The precipitates responsible for strengthening in a 18Ni-Co-Mo-Ti maragingsteel are Ni_3Ti and Ni_3Mo as identified by TEM. It should be pointed out thatusing selected-area diffraction patterns, the two precipitates were discerned sepa-rately only when certain specific orientations of the matrix crystal were chosen.The polygonal shape of the diffraction spots has been discussed in light of theshape factor effects of the Ni_3Mo particles.
[1] Baker, A. J. and Swann, P. R., Trans. ASM., 57 (1964) , 1008. [2] Miller, G. P. and Mitchell, W. I., J. Iron Steel Inst., 203 (1965) , 899. [3] Spitzig, W. A. et al., ASM Trans. Quart., 61 (1968) , 635. [4] 冈本尚机,日本金属学会志,35(1971) ,204. [5] 36(1973) ,1271. [6] 蔡其巩等,物理学报,23(1974) ,178. [7] 叶恒强,物理学报,28(1979) 、78. [8] Hlrsch, P. B. et al., Electron Microscopy of Thin Crystals, Butterworths, London, 1965. [9] Edington, J. w., Electron Diffraction in the Electron Microscopy, Macmillan, London, 1975. [10] Thomas, G. et al., Phys. Status Solidi, 12 (1965) , 353.