International Scientific-Technical and Production Journal
June
2011
#6
English translation of the monthly «Avtomaticheskaya Svarka» (Automatic Welding) journal published in Russian since 1948
Founders: E.O. Paton Electric Welding Institute of the NAS of Ukraine
International Association «Welding»
Editor-in-Chief B.E.Paton
Publisher: International Association «Welding»
CONTENTS
Editorial board:
Yu. <...> V. SHVETS , A.V. KAVUNICHENKO , V.I. SHVETS ,
2
2
S.D. TARANENKO and V.A. PROSHCHENKO
1
E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
2
OJSC «Dnepropetrovsky strelochny zavod», Dnepropetrovsk, Ukraine
The features of defects formation in butt welds, made by flash-butt welding of cast billets of steel 110G13L (GOST
7432—87) with austenite rolled billets of steel 12Kh18N10T (GOST 5949—75), which are used in manufacture of welded
railway frogs, were investigated. <...> It was established that casting defects, being located in the butt weld zone, lead to
formation of defects and, depending on conditions of their formation, affect the strength properties of welded joints in
different ways. <...> K e y w o r d s : pulsed flash-butt welding, high-manganese
steel 110G13L, rail steel M76, austenite insert
At the E.O. Paton Electric Welding Institute the technology and equipment for flash-butt welding of railway
frogs [1] were developed, the main feature of which is
the application of a pulsed flashing [2], which allows
producing joints of high-manganese cast steel 110G13L
with rail steel M76 through an insert of rolled chromium-nickel austenite steel 12Kh18N10T. <...> The frog with
welded-on rail ends is shown in Figure 1. <...> The purpose of this work is the investigation of
influence of weld defects, connected with available
defects in initial materials before welding, on mechanical properties of the joints. <...> After that the facing of specimens was carried out in
such a way that during welding a defect could get
into the zone of joining. <...> The investigations of microstrucutre were performed using optical microscope
«Neophot-32», and the analysis of chemical heteroge-
Figure 1. <...> In Figure 2 a macrosection is represented, cut out
from specimen with an artificial flaw, which was fractured during the tests along the rail end (steel M76)
at the force of 1100 <...>
The_Paton_Welding_Journal_№6_2011.pdf
International Scientific-Technical and Production Journal
June
2011
# 6
English translation of the monthly «Avtomaticheskaya Svarka» (Automatic Welding) journal published in Russian since 1948
Editor-in-Chief B.E.Paton
Yu.S.Borisov V.F.Khorunov
A.Ya.Ishchenko I.V.Krivtsun
B.V.Khitrovskaya L.M.Lobanov
V.I.Kyrian A.A.Mazur
S.I.Kuchuk-Yatsenko
Yu.N.Lankin I.K.Pokhodnya
V.N.Lipodaev V.D.Poznyakov
V.I.Makhnenko K.A.Yushchenko
O.K.Nazarenko A.T.Zelnichenko
I.A.Ryabtsev
CONTENTS
SCIENTIFIC AND TECHNICAL
. and
.
Peculiarities of influence of defects in cast billets of steel
110G13L on mechanical properties of joints during
flash-butt welding ......................................................................... 2
. and
N.P.Alyoshin (Russia)
U.Diltey (Germany)
Guan Qiao (China)
D. von Hofe (Germany)
V.I.Lysak (Russia)
N.I.Nikiforov (Russia)
B.E.Paton (Ukraine)
Ya.Pilarczyk (Poland)
G.A.Turichin (Russia)
Zhang Yanmin (China)
A.S.Zubchenko (Russia)
V.N.Lipodaev, V.I.Lokteva
A.T.Zelnichenko (exec. director)
A.A.Fomin, O.S.Kurochko,
I.N.Kutianova, T.K.Vasilenko
N.A.Dmitrieva
D.I.Sereda, T.Yu.Snegiryova
.
Forecasting the content of σ-phase in the HAZ of welded
joints of duplex steels in arc welding ............................................. 6
. and
. Induction system for local treatment of surfaces by
liquid metal flows .......................................................................... 9
. Studying the features of mass transfer in
the process of friction stir welding using physical
modelling ..................................................................................... 13
INDUSTRIAL
. Modern market of welding equipment
and materials ............................................................................... 18
. and
.
Welding fume – factors of influence, physical properties
and methods of analysis (Review) ................................................. 33
. and
. Electron beam
welding of thin-sheet three-dimensional structures of
aluminium alloys .......................................................................... 36
. Level of effect of preparation and
assembly for welding on quality of welded joints for
industrial pipelines ....................................................................... 40
BRIEF INFORMATION
State Registration Certificate
KV 4790 of 09.01.2001
$324, 12 issues per year,
postage and packaging included.
Back issues available.
All rights reserved.
This publication and each of the articles
contained herein are protected by copyright.
Permission to reproduce material contained in
this journal must be obtained in writing from
the Publisher.
Copies of individual articles may be obtained
from the Publisher.
© PWI, International Association «Welding», 2011
. and
. Experience of application of S355 J2
steel in metal structures of the roofing over NSC
«Olimpijsky» (Kiev) ....................................................................... 45
NEWS
Industrial Exhibition «Paton Expo-2011» ........................................ 47
Plasma-arc welding of large-sized products from carbon
materials to metals ....................................................................... 49
Technical Seminar on Welding Consumables ................................ 50
International Conference «Titanium-2011 in CIS» .......................... 52
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Kuchuk-Yatsenko S.I., Shvets Yu.V., Kavunichenko A.V.,
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Pub
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Proshchenko V.A
Editorial b
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S.V
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Nesterenkov V.M
Zankovets P.V
Poznyakov V.D., Zhdanov S.L., Sineok A.G
Maksimenko A.A
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Стр.1
PECULIARITIES OF INFLUENCE OF DEFECTS
IN CAST BILLETS OF STEEL 110G13L
ON MECHANICAL PROPERTIES
OF JOINTS DURING FLASH-BUTT WELDING
S.I. KUCHUK-YATSENKO1, Yu.V. SHVETS1, A.V. KAVUNICHENKO1, V.I. SHVETS1,
S.D. TARANENKO2 and V.A. PROSHCHENKO2
1E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
2OJSC «Dnepropetrovsky strelochny zavod», Dnepropetrovsk, Ukraine
The features of defects formation in butt welds, made by flash-butt welding of cast billets of steel 110G13L (GOST
7432—87) with austenite rolled billets of steel 12Kh18N10T (GOST 5949—75), which are used in manufacture of welded
railway frogs, were investigated. It was established that casting defects, being located in the butt weld zone, lead to
formation of defects and, depending on conditions of their formation, affect the strength properties of welded joints in
different ways.
Keywords: pulsed flash-butt welding,
steel 110G13L, rail steel M76, austenite insert
high-manganese
At the E.O. Paton Electric Welding Institute the technology
and equipment for flash-butt welding of railway
frogs [1] were developed, the main feature of which is
the application of a pulsed flashing [2], which allows
producing joints of high-manganese cast steel 110G13L
with rail steel M76 through an insert of rolled chromium-nickel
austenite steel 12Kh18N10T. The frog with
welded-on rail ends is shown in Figure 1.
The actual task at the modern stage is the increase
of reliability and life of operation of railway frogs.
Its solution is closely connected with the development
of rational methods of non-destructive testing both of
a ready product (welds) and also incoming materials,
which are used in producing of a welded frog.
The purpose of this work is the investigation of
influence of weld defects, connected with available
defects in initial materials before welding, on mechanical
properties of the joints. This is especially important
in welding of cast billets, as far as this problem practically
was not investigated.
The evaluation of influence of defects of butt
welds, occurring as a result of getting the defects of
casting (cavities, pores) into the zone of welded joint,
on strength properties of the latter and their detection
using radiographic method of inspection were conducted
on specimens of a rail profile R65. For this
purpose the batch of castings of steel 110G13L was
cast with violation of casting technology which resulted
in formation of cast defects. The ends of castings
were subjected to radiographic inspection to the depth
of up to 100 mm, from the results of which the sites
of location of defects and their sizes were determined.
After that the facing of specimens was carried out in
such a way that during welding a defect could get
into the zone of joining. In the specimens of castings,
where natural defects were absent, the holes were
drilled which simulated the hollows in the casting.
The mechanical tests of specimens were carried out
according to the TS U 27.3-26524137-1342:2006 [3].
Before the tests the radiographic inspection of welds
on specimens was carried out to check up the presence
of defects.
Having performed the mechanical tests of welded
specimens on static bending in the areas, where defects
of casting caused the fracture along the line of joint
of 12Kh18N10T to 110G13L, the sections were cut
out and metallographic examinations were carried out.
The sections were also cut out from the defective sites,
which were found in welds using radiographic inspection,
though they did not lead to fracture of specimens
along the joining line. The investigations of microstrucutre
were performed using optical microscope
«Neophot-32», and the analysis of chemical heterogeFigure
1. Frog with welded-on rail ends
© S.I. KUCHUK-YATSENKO, Yu.V. SHVETS, A.V. KAVUNICHENKO, V.I. SHVETS, S.D. TARANENKO and V.A. PROSHCHENKO, 2011
2
6/2011
Стр.2