Investigative Methods for Determining Phases in High Speed Steels
Both carbide studies and matrix studies were carried out for X-ray
phase determination on the high speed steel S 6-5-2. The carbide
phase was isolated chemically, the isolate yield being 10.5% by
weight. The isolate was analysed and its phases investigated
X-radiographically. The X-ray diagram showed that M6C carbide is to
be considered the main constituent of the carbide. VC is present in
small amounts. The two types of carbide in the cut surface could be
distinguished metallographically by a potentiostatic etching
procedure. Microprobe studies gave the composition of the two
carbide types. The M6C carbide is essentially a Fe4(WMo)2C with
slight V and Cr impurities in the iron group. The VC is a V-rich
mixed carbide in which about 25% of Fe, Cr, Mo and W are dissolved.
The proportionate amounts of M6C and VC in the isolate were
determined by a balance calculation using the composition of the
carbides and isolate analysis obtained with the microprobe. After
corresponding conversions the results obtained were compared with
the carbide-type constituents determined metallographically. The
isolate was utilized as standard for X-ray determination of
carbide. The calculation of the absorption coefficients necessary
for X-ray deter- mination of carbides was carried out on the basis
of the composition of carbide types for Cr and Mo radiation
determined with the microprobe.
General
Imprint: |
Springer-Verlag
|
Country of origin: |
Austria |
Series: |
Mikrochimica Acta Supplementa, 6 |
Release date: |
October 1975 |
First published: |
1975 |
Editorial coordinators: |
M K Zacherl
|
Dimensions: |
235 x 155 x 25mm (L x W x T) |
Format: |
Paperback
|
Pages: |
480 |
ISBN-13: |
978-3-211-81328-7 |
Languages: |
English
•
German
|
Categories: |
Books >
Science & Mathematics >
Physics >
General
|
LSN: |
3-211-81328-4 |
Barcode: |
9783211813287 |
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