Effects of annealing on microstructure and mechanical properties of bulk nanocrystalline Fe3Al based alloy prepared by aluminothermic reaction

摘要：

The effects of annealing on microstructure and mechanical properties of bulk nanocrystalline Fe3Al based alloy with 10 wt. ％ Ni prepared by aluminothermic reaction have been investigated. It was found that crystal structure of the alloy did not change after annealing at 600 and 800℃, while it changed to ordered B2 and nanocrystalline grains orientations became random after annealing at 1000℃. Average grain sizes of the alloy changed a little after annealing at different temperatures. The alloy after annealing had a large plastic deformation in compression at room temperature and the alloy annealed at 800℃ had the highest compressive yield strength of 1351 MPa. The alloy without annealing had much lower flow stress and good creep property in compression at 800 and 1000℃.

关键词： annealing microstructure mechanical properties nanocrystalline aluminothermic reaction

作者: Pei-Qing La Xue-Feng Lu Yang Yang Ya-Ping Bai Yu-Peng Wei

作者单位: State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University ofTechnology, State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 57-61

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）