Annealing behavior of 12-Cr based mechanical alloyed oxide dispersion strengthened terrific alloys

作者：Li Ming; Zhou Zhangjian^*; He Pei; Xu Yingli; Liao Lu

来源：Journal of Nuclear Materials, 2011, 417(1-3): 189-192.

DOI：10.1016/j.jnucmat.2010.12.064

12 wt.% Cr-ODS ferritic alloys were fabricated by mechanical alloying combined with hipping under different sintering pressure and then forging deformation work. The microstructures of the hipped and forged samples after annealing at different temperatures were investigated and compared. No obvious recrystallization occurred even at an annealing temperature of 1100 degrees C, both for as-hipped and as-forged materials. When hipping under high pressure (200 MPa), the ODS material is very dense, and almost no cavities could be found after annealing at high temperature. While when hipping under low pressure (70 MPa), obvious pores could be found for this material after forging, the pores assembled and formed big cavities up to similar to 10 mu m after annealing at temperature of 1300 degrees C.

• 出版日期2011-10-1
• 单位北京科技大学