Structural mechanisms of the mechanical degradation of Ti-Al-V alloys:: in situ study during annealing

被引：19

作者：

Berberich, F ^{[1
]}

Matz, W ^{[1
]}

Richter, E ^{[1
]}

Schell, N ^{[1
]}

Kreissig, U ^{[1
]}

Möller, W ^{[1
]}

机构：

[1] Rossendorf Inc, Forschungszentrum Rossendorf EV, D-01314 Dresden, Germany

来源：

SURFACE & COATINGS TECHNOLOGY | 2000年 / 128卷

关键词：

Ti-6Al-4V; ion implantation; XRD; hardness;

D O I：

10.1016/S0257-8972(00)00595-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

The aim of this work was to investigate the structural mechanisms of the enhanced hardness of the technical alloy Ti-6Al-4V due to N+-implantation and its degeneration. Ti-6Al-4V samples were implanted with fluences (1-6) x 10(17) N+/cm(2) at 80 keV. The structural implications of the loss of hardness during annealing were studied by in situ XRD experiments with synchrotron radiation. Additional sample characterisation was performed by SEM, ERDA and Vickers hardness tests. The hardness reduction due to annealing is caused by phase transformation from TiN to Ti2N in consequence of the diffusion of nitrogen as well as by rearrangements in the alpha-Ti and beta-Ti phase of the alloy. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：450 / 454

页数：5

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