- Type of paper
: Paper in journal
Title: DISTRIBUTION OF ELEMENTS IN PHASES PRESENT IN G-AlMg5Si
CAST ALLOY
- Authors:
- Pirš, Jože (37306)
Journal: ALUMINIUM
Number: 5
ISSN: 0002-6689
Volume: 69
Year: 1993
Pages: from 462 to 465
Number of references: 5
Language: engleski
Summary: The mechanical properties of most aluminium alloys
dependmarkedly on chemical composition, casting methods and heattreatment.
Alloys of the G-AlMg5Si type are known for their goodcorrosion resistance
and mechanical properties at elevatedtemperatures. Under the designation
"Hydronalium" (Hy 511) theyare used for the production of cylinder heads
for air-cooleddiesel engines. To obtain better mechanical
characteristics,titanium is added to the alloy. This paper deals with the
resultsobtained during investigations of the distribution of elements
inbinary eutectic Mg2Si and ternary eutectic, as well as thedistribution of
titanium in specimens of Hy 511 obtained duringthe casting of cylinder
heads. The element distribution wasstudies using EDX/WDX spectrometry
Keywords: Scanning electron microscopy, Energy dispersive analysis, Wavelength dispersive analysis
- Type of paper
: Paper in journal
Title: CONTRIBUTION TO THE INVESTIGATIONS OF FORMATION AND GROWTH
OF FATIGUE CORROSION IN STAINLESS SPECIALLY STEELS IN CHLORINE WATER
SOLUTIONS
- Authors:
- Pirš, Jože (37306)
- Pomenić, Loreta (108592)
Journal: ZBORNIK TEHNIČKOG FAKULTETA RIJEKA
Number: 12
ISSN: 0350-281
Volume: 12
Year: 1992
Pages: from 193 to 201
Language: hrvatski
Summary: This paper presents the influence of chloride ions and
alloyingelements on pitting potential of stainless steels,
particularyaustenitic stainless steels, and on the resistance of steels
onpitting corrosion respectively, which is one of the reason forthe
nucleation of corrosion fatigue crack. In addition, theinfluence of
chloride ions on nucleation and growth of corrosionfatigue crack is also
presented, regarding of variousconcentration of chloride ions and thier
different activities aswell as definite mechanical strain and frequency.
Keywords: growth of fatigue corrosion crack, austenitic steels, chlorine water solutions
- Type of paper
: Paper in journal
Title: CYLINDER LINERS OF A DIESEL ENGINE CORRODED BY UNUSUITABLE
COOLIN WATER
- Authors:
- Pirš, Jože (37306)
Journal: ALLIANZ REPORT
Number: 3
ISSN: 0943-4569
Volume: 66
Year: 1993
Pages: from 106 to 111
Number of references: 6
Language: njemački
Summary: Cooling water, when used as the coolant in the closed
coolingcycle of diesel engines, is just as important as the lubricantand
the fuel. Unsuitable cooling water can cause corrosion,cavitation and
deposits and can therefore initiate seriousfaults. The present article
considers sever corrosive damage tocylinder liners. It has been
investigated by metallographic grainstructure methods and the damage may be
attributed to anunsuitable method of dealing with untreated water where
thetreated water is to be used for cooling purposes.
Keywords: cylinder liner, woling vater, corrosion, metallographic analysis
- Type of paper
: Paper in journal
Title:
- Authors:
- Pirš, Jože (37306)
- Pavlin, M
Journal: Der Maschinen Schaden
Number: 1
Volume: 51
Year: 1978
Pages: from 149 to 154
Language: njemački
- Type of paper
: Paper in journal
Title:
- Authors:
- Pirš, Jože (37306)
Journal: Der Maschinen Schaden
Number: 5
Volume: 48
Year: 1975
Pages: from 133 to 168
Language: njemački
- Type of paper
: Paper in journal
Title:
- Authors:
- Pirš, Jože (37306)
Journal: Der Maschinen Schaden
Volume: 51
Year: 1978
- Type of paper
: Paper in journal
Title:
- Authors:
- Pirš, Jože (37306)
Journal: Der Maschinen Schaden
Number: 51
Volume: 51
Year: 1978
Language: njemački
- Type of paper
: Paper in journal
Title:
- Authors:
- Pirš, Jože (37306)
Journal: ALLIANZ REPORT
Number: 3
ISSN: -
Year: 1993
Pages: from 106
Language: njemački
- Type of paper
: Paper in journal
Title:
- Authors:
- Pirš, Jože (37306)
Journal: Kikai no songai
Number: 2
ISSN: 0910-2159
Year: 1994
Pages: from 71 to 75
Language: njemački
- Type of paper
: Paper in journal
Title:
- Authors:
- Pirš, Jože (37306)
Journal: ALLIANZ REPORT
Number: 3
Volume: 67
Year: 1994
Pages: from 106 to 113
Language: njemački
- Type of paper
: Paper in proceedings
Title: INVESTIGATIONS OF THE DISTRIBUTION OF ELEMENTS IN PHASES
PRESENT IN G-AlMg5Si CAST ALLOY WITH EDX/WDX SPECTROMETERS AND AES
- Authors:
- Pirš, Jože (37306)
- Pomenić, Loreta (108592)
- Editors
- Pirš, Jože (37306)
Proceedings title: VERHANDLUNGEN
Language: engleski
Place: Regensburg, NJEMAČKA
Year: 1992
ISBN/ISSN: 0420-0195
Pages: from 1100 to 1100
Meeting: Fruhjahrstagung des Arbeitskreises Festkorperphysik bei der DPG
Held: from 03/16/92 to 03/20/92
Summary: The mechanical properties of most aluminium alloys depend
heavilyon chemical composition, casting methods and heat treatment,Alloys
of type G-AlMg5Si are know for good corrosion resistanceand mechanical
properties at elevated temperatures. Under thedesignation Hydronalium (Hy
511) they are used for the productionof heads for air cooled diesel
engines. To obtain bettermechanical characteristic, titanium is added to
the alloy. Thispaper deals with the results obtained during investigations
ofthe distribution of elements in binary eutectic and ternaryeutectic as
well as the distribution of titanium in samples of Hy511, obtained during
casting of cylinder heads. Studies of thedistribution of the elements were
performed using EDX/WDXspectrometers, and the distribution of titanium was
studied alsowith Auger electron spectroscopy.
- Type of paper
: Paper in proceedings
Title: FAILURES OF ORTHOPAEDIC FIXATION DEVICES
- Authors:
- Pirš, Jože (37306)
- Editors
- Pirš, Jože (37306)
Proceedings title: THE PROCESSING PROPERTIES AND APPLICATIONS OF METALLIC AND CERAMIC MATERIALS
Language: engleski
Place: Kyoto, JAPAN
Year: 1991
ISBN/ISSN: 0-08-034912-9
Pages: from 0 to 0
Meeting: THE SIXTH INTERNATIONAL CONFERENCE ON MECHANICAL BEHAVIOR OF MATERIALS
Held: from 07/28/91 to 08/02/91
Summary: Fractured surgical implants were examined and causes of
failureswere investigated. Here the results of examinations of fracturesof
artifical joint endoprostheses nade from cast and forgedimplant materials
are presented. In the case of fixation devicemade from cast Co-Cr-Mo alloy
brittle fracture mode was observed.The failure of subject prosthesis made
from stainless steel wascauses by initiation and propagation of two crack,
one of thembeing a fatigue crack, which initiated at the outside surface
ofthe bend and propagated across the section. On the inner surfacethe bend
in the stem, there were also cracks of transgranularnature present.
Keywords: Cast Co-Cr base alloy, 316 L stainles steel, prosthetic hip joints, stress corrosion cracking
- Type of paper
: Paper in proceedings
Title: INVESTIGATION OF ORTODONTIC WIRES BY SCANNING ELECTRON
MICROSCOPY AND AUGER ELECTRON SPECTROSCOPY
- Authors:
- Pirš, Jože (37306)
- Pomenić, Loreta (108592)
- Editors
- Pirš, Jože (37306)
Proceedings title: VACUUM
Language: engleski
Place: Beč, Austria
Year: 1991
ISBN/ISSN: 0042-207X
Pages: from 613 to 615
Meeting: 3rd European Vacuum Conference and Austrian-Hungarian-Yugoslav Fifth Joint Vacuum Conference
Held: from 09/23/91 to 09/27/91
Summary: An investigation has been conducted to clarify the
possiblemechanisms of oxidation and corrosion of orthodontic
wires.Ortodontic wires, which are produced from 316 L stainless steelare
used for the mounting and holding of the active free plate,which is a
correction instrument for teeth growth. Orthodonticwires can break during
service life and the fracture mode isfatigue failure. The fractured surface
is covered with acontaminating layer, varying in thickness. During
previousinvestigations it was shown that the contaminating layer iscomposed
of carbon and sputum products. The chemical compositionwas determined by
using AES. During this investigation thecomposition of the surface layer on
the fracture surface formedwas determined by AES. The results showed that
the ptincipalconstituents of the surface layer were oxygen, sulphur,
calciumand carbon.
Keywords: stainless steel, corrosion, scanning electron microscopy, Auger electrons spectroscopy
- Type of paper
: Paper in proceedings
Title: ENVIRONMETALLY ASSISTED CORROSION OF METALS
- Authors:
- Pirš, Jože (37306)
- Pomenić, Loreta (108592)
- Editors
- Pirš, Jože (37306)
Proceedings title: Zbornik radova 3 SONT
Language: hrvatski
Place: Zagreb
Year: 1991
ISBN/ISSN: 86-81997-01-7
Pages: from 61 to 64
Meeting: 3. MEĐUNARODNI SIMPOZIJ O NOVIM TEHNOLOGIJAMA
Held: from 10/15/91 to 10/17/91
Summary: Environments can have a much more powerful effect on
corrosion ofmetals than is commonly realized either by chemical engineers
orby the practizing designer or by the operator of plants, ofmachines and
structures. For this reason, a significant fractionof the service failures
of modern high technology equipment isdue to the environment-assisted
cracking. This paper presents thephenomena and most important influential
crack growth,particulary stress corrosion cracking and corrosion fatigue.
More particular attention need to be done prevent stresscorrosion cracking
and corrosion fatigue during all stages ofequipment manufacture and
operation, from the early stages ofmanufacuring to the final stage of
steady state operation andshutdown. The principles of devloping rigorous
design equationswhich can be used with confidence by the design community
arementioned too.
- Type of paper
: Paper in proceedings
Title: DISTRIBUTION OF ELEMENTS IN PHASES PRESENT IN G-AlMg5Si
CAST ALLOY
- Authors:
- Pirš, Jože (37306)
- Editors
- Pirš, Jože (37306)
Proceedings title: ADVANCED MANUFACTURING SYSTEMS AND TECHNOLOGY (AMST 93)
Language: engleski
Place: Udine, Italia
Year: 1993
Pages: from 189 to 196
Meeting: 3rd INTERNATIONAL CONFERENCE ON ADVANCED MANUFACTURING SYSTEMS AND TECHNOLOGY PROCEEDING
Held: from 04/26/93 to 04/27/93
Summary: The mechanical properties of most aluminium alloys
dependmarkedly on chemical composition, casting methods and heattreatment.
Alloys of the G-AlMg5Si type are known for their goodcorrosion resistance
and mechanical properties at elevatedtemperatures. Under the designation
"Hydronalium" (Hy 511) theyare used for the production of cylinder heads
for air-cooleddiesel engines. To obtain better mechanical
characteristics,titanium is added to the alloy. This paper deals with the
resultsobtained during investigations of the distribution of elements
inbinary eutectic Mg2Si and ternary eutectic, as well as thedistribution of
titanium in specimens of Hy 511 obtained duringthe casting of cylinder
heads. The element distribution wasstudies using EDX/WDX spectrometry
Keywords: Cast Aluminium Alloy, EDX/WDX Specrometry, Auger Electron Spectroscopy
- Type of paper
: Paper in proceedings
Title: FAILURES OF ORTHOPAEDIC FIXATION DEVICES
- Authors:
- Pirš, Jože (37306)
- Editors
- Pirš, Jože (37306)
Proceedings title: THE PROCESSING, PROPERTIES AND APPLICATION OF METALLIC AND CERAMIC MATERIALS
Language: engleski
Place: Birmingham, Engleska
Year: 1992
Pages: from 861 to 866
Meeting: IRC in Materials for High Performance Applications
Held: from 09/06/92 to 09/10/92
Summary: Fractured surgical implants were examined and causes of
failureswere investigated. Here the results of examinations of fracturesof
artifical joint endoprostheses nade from cast and forgedimplant materials
are presented. In the case of fixation devicemade from cast Co-Cr-Mo alloy
brittle fracture mode was observed.The failure of subject prosthesis made
from stainless steel wascauses by initiation and propagation of two crack,
one of thembeing a fatigue crack, which initiated at the outside surface
ofthe bend and propagated across the section. On the inner surfacethe bend
in the stem, there were also cracks of transgranularnature present.
Keywords: Cast Co-Cr base alloy, 316 L stainles steel, prosthetic hip joints, stress corrosion cracking
- Type of paper
: Paper in proceedings
Title: FAILURES OF ORTHOPAEDIC FIXATION DEVICES
- Authors:
- Pirš, Jože (37306)
- Editors
- Pirš, Jože (37306)
Proceedings title: ADVANCED MATERIALS AND PROCESSES
Language: engleski
Place: Cambridge, Engleska
Year: 1991
ISBN/ISSN: 3-88355-161-8
Pages: from 272 to 278
Meeting: Procedings of the Second European Conference on Advanced Materials and Processes EUROMAT 91
Held: from 07/22/91 to 07/24/91
Summary: Since the first use of chromium nickel molybdenum steels
forimplants in the thirties rapid progress has been made in thedevelopment
of stainless steels. Until today these improvementshave scarcely been taken
into consideration by material standardsfor implants. In agreement with the
characteristic potentials forlokalized corrosion a statistical evaluation
of failures showsthat pitting, crevice corrosion and corrosion fatigue as a
resultfrom the latter can easily be avided by higher contents ofchromium
and molybdenum. Steels in accordance with theserequirements are specified
in all standards and would solely fromthe economic point of view justify
their use.
Keywords: materials standards for implantats, stainless steel, pitting corrosion
