Ni3Al-B ALLOYS AND THEIR MECHANICAL PROPERTIES AT HIGH TEMPERATURES

被引：0

作者：

Pohludka, Martin ^{[1
]}

Malcharczikova, Jitka ^{[1
]}

Kursa, Miroslav ^{[1
]}

Kawulok, Rostislav ^{[1
]}

Opela, Petr ^{[1
]}

机构：

[1] VSB Tech Univ Ostrava, Ostrava, Czech Republic

来源：

METAL 2016: 25TH ANNIVERSARY INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS | 2016年

关键词：

Nickel aluminides; directional solidification; compression test; NI-AL; MICROSTRUCTURE;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The Ni-22Al-0.5B and Ni-24Al-0.5B alloys (at.%) were prepared by a vacuum induction melting process followed by a gravity casting process. The castings were directionally solidified in a resistance furnace at a temperature of 1550 degrees C and rate of directional solidification of 50 mm.h(-1). The castings and ingots after directional solidification were used for preparation of samples for a compression test. These tests were carried out at a temperature of 800 degrees C and deformation rate of 5.10(-2) s(-1). The samples were shaped as a short cylinder (8 x 12 mm). The results of the compression tests have confirmed that the directionally solidified Ni3Al alloys alloyed with boron have a higher yield strength than the castings of these alloys and the Ni3Al alloys unalloyed with boron.

引用

页码：1498 / 1503

页数：6

共 10 条

[1]

[Anonymous], 2007, TENSION TEST

[2] BORON IN POLYCRYSTALLINE NI3AL - MECHANISM OF ENHANCEMENT OF DUCTILITY AND REDUCTION OF ENVIRONMENTAL EMBRITTLEMENT [J].