1949
DOI: 10.1021/ac60036a024
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Determination of Aluminum Nitride Nitrogen in Steel

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Cited by 100 publications
(14 citation statements)
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“…Furthermore, there are considerable experimental difficulties in performing these measurements at high temperatures. Some authors rely on the Beeghly's, method [29] involving sample dissolution followed by filtering of the particles: the accuracy of this method is questioned because of its potential lack of sensitivity when very fine precipitates are present [1,2]. Others rely only on measurements of soluble nitrogen to calculate the amount of nitride precipitated.…”
Section: Precipitation In Austenite In Carbon Steelsmentioning
confidence: 99%
“…Furthermore, there are considerable experimental difficulties in performing these measurements at high temperatures. Some authors rely on the Beeghly's, method [29] involving sample dissolution followed by filtering of the particles: the accuracy of this method is questioned because of its potential lack of sensitivity when very fine precipitates are present [1,2]. Others rely only on measurements of soluble nitrogen to calculate the amount of nitride precipitated.…”
Section: Precipitation In Austenite In Carbon Steelsmentioning
confidence: 99%
“…The residues were examined by X-ray diffraction and the results are summarized in Table 2. The "combined" nitrogen contents of the alloys were determined using a 3g alloy sample weight by the Beeghly procedure [2] and the method described in BS l l21/Part 39, after fuming the extracted residue strongly in concentrated sulphuric acid. The results are given in Table 2.…”
Section: Nitride Residues From Ternary ( Fe -M-n) and Quaternary Allomentioning
confidence: 99%
“…However, the examination of many inclusions in this way is prohibitively long and for many purposes, it is better to extract the inclusions in bulk from the steel and subsequently examine them as a powdered sample. This paper is concerned with the identification and determination of nitrides present in such bulk extracted residues.Scholes and White [1 ] stated that with the exception of aluminium nitride [2], no reliable specific techniques exist for the quantitative determination of individual nitride phases, and more recently [3] the hitherto accepted Beeghly method [2] for aluminium nitride determination has been questioned. In the search for new approaches differential thermal decomposition was considered [1] to have potential and this has been developed [4][5][6][7] into a technique involving simulta--neous differential thermal analysis and evolved gas analysis, (DTA/EGA) for the examina~on of carbides, nitrides and sulphides present in residues extracted from steel.…”
mentioning
confidence: 99%
“…'rhcse eleme n ts wer e deLer .. m ined on drillin gs from the ingot at the base of the hot top. Ana]yses for n itrogen, oxygen , hy drogen, al uminum, aluminum nitride, and aluminum oxide were m a de a t the National Bureau of Standards on samples prepa red from the frac tured Charpy specimens by methods as follows: Total nitrogen, oxygen, aud hydrogen by vacuum fu sion ; aluminum nitride as described by Beeghl y [37]; aluminum oxide b y solution in H N O,; aluminum by spectrochem ical analysis. The determina tions J or the ga ses and their compound s a re comidered to he accura te to within a pproximately ± 0.001 pcrcent.…”
Section: Chemical Composition Of Steels-p3rcentage By Weightmentioning
confidence: 99%