STRUCTURAL STUDY OF A TITANIUM-TITANIUM BORIDE CERMET COATING FORMED UPON LASER FUSION OF BORON ON A TITANIUM FOIL

被引：11

作者：

ETTAQI, S ^{[1
]}

BENAYOUN, S ^{[1
]}

HANTZPERGUE, JJ ^{[1
]}

DENIARD, P ^{[1
]}

BREC, R ^{[1
]}

机构：

[1] IMN,CHIM SOLIDES LAB,F-44072 NANTES 03,FRANCE

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1995年 / 5卷 / 11期

关键词：

D O I：

10.1039/jm9950501905

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The laser melting conditions of boron and titanium on the surface of a titanium foil have been determined. Both fusions induce a chemical reaction resulting in the formation of a cermet (ceramic-metal composite) coating on the surface of the titanium sample. This coating, the hardness of which lies between 300 and 500 Hv (whereas its thickness lies between 100 and 160 mu m) is made of an intimate mixture of alpha-Ti, TiB2 and TiB, the metallic phase being the major one. Underlying, a-Ti is only heat affected with, just beneath the cermet layer, acicular looking grains, Crystallographic analyses of TIE, indicate that the phase presents rather large crystallites with sizes of about 0.07 mu m and 1 mu m along the [00l] and [h00] directions, respectively. This phase presents no preferred orientation and almost no network strains.

引用

页码：1905 / 1908

页数：4