ION MICROPROBE ANALYSIS FOR NIOBIUM HYDRIDE IN HYDROGEN-EMBRITTLED NIOBIUM.

Peter Williams, Charles A. Evans, Martin L. Grossbeck, Howard K. Birnbaum

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

A hydrogen-embrittled niobium sample, fractured above the solvus temperature, has been examined using an ion microprobe. Ion images taken with Nb** plus , NbH** plus , H** plus , and NbO** plus ions reveal strong enhancement of the emission of the hydrogen-containing ion species from the walls of the main fracture and from a secondary crack. Comparison of the NbH** plus /Nb** plus ion ratio from the crack walls with that observed from known niobium hydride precipitates demonstrates that the hydrogen-rich phase found on the fracture walls is niobium hydride. The results confirm a postulated mechanism of hydrogen embrittlement by stress-induced precipitation of niobium hydride.

Original languageEnglish (US)
Pages (from-to)964-968
Number of pages5
JournalAnalytical Chemistry
Volume48
Issue number7
StatePublished - Jun 1976
Externally publishedYes

Fingerprint

Niobium
Hydrides
Hydrogen
Ions
Cracks
Hydrogen embrittlement
Precipitates

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Williams, P., Evans, C. A., Grossbeck, M. L., & Birnbaum, H. K. (1976). ION MICROPROBE ANALYSIS FOR NIOBIUM HYDRIDE IN HYDROGEN-EMBRITTLED NIOBIUM. Analytical Chemistry, 48(7), 964-968.

ION MICROPROBE ANALYSIS FOR NIOBIUM HYDRIDE IN HYDROGEN-EMBRITTLED NIOBIUM. / Williams, Peter; Evans, Charles A.; Grossbeck, Martin L.; Birnbaum, Howard K.

In: Analytical Chemistry, Vol. 48, No. 7, 06.1976, p. 964-968.

Research output: Contribution to journalArticle

Williams, P, Evans, CA, Grossbeck, ML & Birnbaum, HK 1976, 'ION MICROPROBE ANALYSIS FOR NIOBIUM HYDRIDE IN HYDROGEN-EMBRITTLED NIOBIUM.', Analytical Chemistry, vol. 48, no. 7, pp. 964-968.
Williams, Peter ; Evans, Charles A. ; Grossbeck, Martin L. ; Birnbaum, Howard K. / ION MICROPROBE ANALYSIS FOR NIOBIUM HYDRIDE IN HYDROGEN-EMBRITTLED NIOBIUM. In: Analytical Chemistry. 1976 ; Vol. 48, No. 7. pp. 964-968.
@article{bf85c9e5b0134b73bcd13f6237035fe6,
title = "ION MICROPROBE ANALYSIS FOR NIOBIUM HYDRIDE IN HYDROGEN-EMBRITTLED NIOBIUM.",
abstract = "A hydrogen-embrittled niobium sample, fractured above the solvus temperature, has been examined using an ion microprobe. Ion images taken with Nb** plus , NbH** plus , H** plus , and NbO** plus ions reveal strong enhancement of the emission of the hydrogen-containing ion species from the walls of the main fracture and from a secondary crack. Comparison of the NbH** plus /Nb** plus ion ratio from the crack walls with that observed from known niobium hydride precipitates demonstrates that the hydrogen-rich phase found on the fracture walls is niobium hydride. The results confirm a postulated mechanism of hydrogen embrittlement by stress-induced precipitation of niobium hydride.",
author = "Peter Williams and Evans, {Charles A.} and Grossbeck, {Martin L.} and Birnbaum, {Howard K.}",
year = "1976",
month = "6",
language = "English (US)",
volume = "48",
pages = "964--968",
journal = "Analytical Chemistry",
issn = "0003-2700",
publisher = "American Chemical Society",
number = "7",

}

TY - JOUR

T1 - ION MICROPROBE ANALYSIS FOR NIOBIUM HYDRIDE IN HYDROGEN-EMBRITTLED NIOBIUM.

AU - Williams, Peter

AU - Evans, Charles A.

AU - Grossbeck, Martin L.

AU - Birnbaum, Howard K.

PY - 1976/6

Y1 - 1976/6

N2 - A hydrogen-embrittled niobium sample, fractured above the solvus temperature, has been examined using an ion microprobe. Ion images taken with Nb** plus , NbH** plus , H** plus , and NbO** plus ions reveal strong enhancement of the emission of the hydrogen-containing ion species from the walls of the main fracture and from a secondary crack. Comparison of the NbH** plus /Nb** plus ion ratio from the crack walls with that observed from known niobium hydride precipitates demonstrates that the hydrogen-rich phase found on the fracture walls is niobium hydride. The results confirm a postulated mechanism of hydrogen embrittlement by stress-induced precipitation of niobium hydride.

AB - A hydrogen-embrittled niobium sample, fractured above the solvus temperature, has been examined using an ion microprobe. Ion images taken with Nb** plus , NbH** plus , H** plus , and NbO** plus ions reveal strong enhancement of the emission of the hydrogen-containing ion species from the walls of the main fracture and from a secondary crack. Comparison of the NbH** plus /Nb** plus ion ratio from the crack walls with that observed from known niobium hydride precipitates demonstrates that the hydrogen-rich phase found on the fracture walls is niobium hydride. The results confirm a postulated mechanism of hydrogen embrittlement by stress-induced precipitation of niobium hydride.

UR - http://www.scopus.com/inward/record.url?scp=0016961432&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0016961432&partnerID=8YFLogxK

M3 - Article

VL - 48

SP - 964

EP - 968

JO - Analytical Chemistry

JF - Analytical Chemistry

SN - 0003-2700

IS - 7

ER -