PREFERRED ORIENTATIONS IN EXTRUDED NICKEL AND IRON ALUMINIDES

被引:30
作者
KHADKIKAR, PS [1 ]
MICHAL, GM [1 ]
VEDULA, K [1 ]
机构
[1] CASE WESTERN RESERVE UNIV,DEPT MAT SCI & ENGN,CLEVELAND,OH 44106
来源
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1990年 / 21卷 / 02期
关键词
D O I
10.1007/BF02782408
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Preferred orientations in both powder-extruded and cast and extruded binary NiAl (≃45 at. pet Al), FeAl (≃40 at. pet Al), and Ni3Al (≃24 at. pet Al) have been characterized by plotting inverse pole figures. The preferred orientation, [111], was observed along the extrusion direction in both powder-extruded and cast and extruded NiAl. Powder-extruded FeAl also exhibited [111] as the preferred orientation in the as-extruded condition. However, [110] was observed to be the preferred orientation in the cast and extruded FeAl and was replaced by a [211] orientation preference upon annealing. Annealing did not change the preferred orientations in NiAl or in powder-extruded FeAl. In contrast to the B2 NiAl and FeAl alloys, the Ll2 Ni3Al alloy exhibited nearly random orientations with only a minor preference for a [111] orientation in the as-extruded condition. © 1990 The Minerals, Metals & Materials Society - ASM International - The Materials Information Society.
引用
收藏
页码:279 / 288
页数:10
相关论文
共 20 条