DUCTILIZATION OF L12 INTERMETALLIC COMPOUND NI3AL BY MICROALLOYING WITH BORON

被引：58

作者：

AOKI, K

机构：

[1] Institute for Materials Research, Tohoku University

来源：

MATERIALS TRANSACTIONS JIM | 1990年 / 31卷 / 06期

关键词：

brittleness; ductility; ductilization; grain boundary segregation; intergranular fracture; intermetallic compounds; microalloying; nickel aluminide; structural materials;

D O I：

10.2320/matertrans1989.31.443

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Many intermetallic compounds have attractive high-temperature mechanical properties; however, poor ductility at room temperature severely restrict their use as high-temperarure structural materials. The brittleness in an L12 intermetallic compound Ni3Al, caused by the intergranular fracture, has been dramatically overcome by microalloying with boron. Ductilization of Ni3Al has renewed a great interest in the intermetallic compounds as a new category of structural materials. Full details of the discovered ductilizing boron effect in Ni3Al are given in this paper. © 1990, The Japan Institute of Metals. All rights reserved.

引用

页码：443 / 448

页数：6

共 31 条

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AOKI, K ;

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AOKI, K ;

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AOKI, K ;

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AOKI, K ;

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TRANSACTIONS OF THE JAPAN INSTITUTE OF METALS, 1978, 19 (04) :203-210

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AOKI, K ;

IZUMI, O .

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AOKI, K ;

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JOURNAL OF MATERIALS SCIENCE, 1979, 14 (08) :1800-1806

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AOKI, K ;

IZUMI, O .

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AOKI, K ;

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PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1975, 32 (02) :657-664

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AOKI, K ;

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ACTA METALLURGICA, 1979, 27 (05) :807-816

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