Bibliothek

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
Datenquelle
Materialart
Erscheinungszeitraum
  • 1
    Digitale Medien
    Digitale Medien
    Tensile and fatigue properties of Fe-Mn-Al-C alloys (1989)
    Springer
    Journal of materials science 24 (1989), S. 1117-1120 
    Details
    ISSN: 1573-4803
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract The tensile properties and fatigue behaviour of three solution-treated Fe-29 Mn-9 Al-C (wt%) alloys having various carbon contents leading to different volume fractions of austenite and ferrite phases were investigated. The carbon contents were 1.06%, 0.60% and 0.26%, respectively and the corresponding volume fractions of austenite were 100%, 90% and 45%, respectively. The alloy having 1.06% carbon possessed the best tensile properties but its fatigue behaviour was only comparable to the other two alloys with lower carbon contents. The alloy having 0.60% carbon possessed the lowest yield strength, but its fatigue life was slightly better than other two alloys. The alloy having 0.26% C possessed lowest elongation and medium strength, and its fatigue life was comparable to the other two alloys. Their tensile properties and fatigue behaviour were explained in terms of crack initiation, crack propagation, grain size, constituent arrangement and constituent fraction.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01148807
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Studies on the stress-strain relations of dual-phase steels (1981)
    Springer
    Journal of materials science 16 (1981), S. 2682-2688 
    Details
    ISSN: 1573-4803
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract The correlations of the work-hardening exponent,n, with quenching temperature, martensite volume-fraction (MVF) and solute concentration in ferrite are discussed and derived for dual-phase steel. The flow stress of dual-phase steel at low strain is suggested to be expressed by the combination of the terms due to plastic deformation in ferrite and elastic deformation of martensite. Previous experimental results are compared with the behaviour suggested by this theoretical work. In addition, an expression for the work hardening exponents at moderate strains and at the onset of necking are also theoretically suggested.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00552950
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Stability and work hardening of an Fe-12Cr-23Mn austenitic steel (1985)
    Springer
    Journal of materials science 20 (1985), S. 2757-2766 
    Details
    ISSN: 1573-4803
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract The effect of pre-strain on the strain-induced martensitic transformation of an Fe-12Cr-23Mn austenitic steel has been investigated through transmission electron microscopy and X-ray analysis. Pre-strain was performed either at room temperature or at 200° C. Final strain was carried out at liquid-nitrogen temperature. Theε phase was shown to form on {1 1 1} planes of the austenite matrix predominantly by overlapping of stacking faults. The martensite transformation sequence wasγ →ε →α. Nucleation of theα phase mainly occurred at intersections ofε bands. Austenite stability was shown to increase by pre-strain at 25° C or 200° C. Pre-strain at 200° C has a greater effect on austenite stability than does pre-strain at 25° C. The mechanism was discussed in terms of martensite transformation rate and various substructures introduced during straining. Work hardening was shown to depend on the degree of pre-strain and final strain. The correlation between work hardening and substructures introduced during straining was examined.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00553037
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    Effects of TAHA treatments on the fatigue life of a 7075 aluminium alloy (1986)
    Springer
    Journal of materials science 21 (1986), S. 799-802 
    Details
    ISSN: 1573-4803
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract The effects of TAHA treatments including pre-ageing, plastic deformation and final-ageing on the fatigue life of a 7075 Al-Zn-Mg alloy were investigated. Pre-ageing was carried out at 100° C (TAHA1) and room temperature (TAHA2). Experimental results indicated that the improvement in fatigue life due to TAHA1 and TAHA2 was at least 19.5 and 26%, respectively, when compared to the conventional T-6 treatment. Scanning electron microscopy showed that fracture features such as dimple distribution, fatigue striation, tearing ridge and platelets could be correlated with fatigue behaviour. The correlation between the peak fatigue life, peak elongation, residual stress and substructure, such as subcell and precipitate, is also discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01117357
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    Tensile and fatigue properties of a thermomechanically treated 7475 aluminium alloy (1988)
    Springer
    Journal of materials science 23 (1988), S. 4115-4120 
    Details
    ISSN: 1573-4803
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract High-purity Al-Zn-Mg alloy was thermomechanically treated. The process included solution treatment, pre-ageing, cold-working by rolling and final ageing. Pre-ageing was carried out at 100°C (TAHA1) and room temperature (TAHA2). Experimental results indicated that the TAHA1 process improved the tensile strength significantly while the TAHA2 process improved the fatigue life more substantially. Fatigue crack initiation sites were examined carefully by scanning electron microscopy. A correlation between fatigue crack initiation, fatigue striation, tearing ridge, dimple distribution and fatigue life was observed. The experimental results are discussed in terms of substructure and are also compared with the tensile and fatigue properties of a thermomechanically treated 7075 Al-Zn-Mg alloy which were previously reported by one of the authors.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01106845
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    The effects of pre-ageing on a thermomechanically treated 6201 aluminium alloy (1988)
    Springer
    Journal of materials science 23 (1988), S. 852-855 
    Details
    ISSN: 1573-4803
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract The effects of pre-ageing on the tensile properties of a thermomechanically treated 6201 aluminium alloy were examined. It was found that the pre-ageing effects can be either beneficial or detrimental depending on the amount of cold work applied prior to final ageing. The pre-ageing performed was at 135° C for 30 min. The final ageing was at 140° C for various time periods. Pre-ageing combined with 60% cold work improves the tensile properties. However, pre-ageing combined with 80% cold work shows a detrimental effect on the tensile properties of 6201 alloy. The mechanisms are explained in terms of transmission electron microscopy.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01153978
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Fatigue studies on dual-phase low carbon steel (1981)
    Springer
    Journal of materials science 16 (1981), S. 2521-2526 
    Details
    ISSN: 1573-4803
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract Low cycle fatigue studies have been carried out on 2 wt% Mn, 2 wt% Si and 0.1 wt% C steels with dual-phase and tempered martensitic structures. Fatigue crack initiation and propagation were investigated using scanning electron microscopy as well as optical microscopy. In addition, taper-section and cross-section techniques were also performed for more detail studies on the correlation of crack initiation with the internal microstructures of the testing samples. Internal microstructures were also investigated on the dual-phase steel sample before and after fatigue fracture by transmission electron microscopy.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01113591
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Effect of nitrogen and nickel on the stability of an Fe-12Cr-23Mn austenitic steel (1986)
    Springer
    Journal of materials science 21 (1986), S. 2866-2870 
    Details
    ISSN: 1573-4803
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract The effect of nitrogen and nickel on the austenite stability and the structural changes as a result of cold work of an Fe-12Cr-23Mn alloy steel has been examined by transmission electron microscopy and X-ray analysis. Prestrain was performed either at room temperature or at 200° C. Final strain was carried out at liquid nitrogen temperature. The volume fraction of strain-induced martensite decreased by 40% and 12% due to the addition of 2.43% Ni and 0.11% N, respectively, despite whether prestrain was performed or not. The mechanisms are discussed in terms of the ɛ phase, stacking faults, dislocation cells and dislocation tangles induced by prestrain and final strain.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00551504
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    Fatigue and tensile properties of a newly developed tin-copper alloy (1992)
    Springer
    Journal of materials science 11 (1992), S. 1596-1598 
    Details
    ISSN: 1573-4811
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00740844
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Thermal fluctuations in bulk granular superconductors (1978)
    Springer
    Journal of low temperature physics 30 (1978), S. 529-534 
    Details
    ISSN: 1573-7357
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: The resistive transitions and the temperature dependence of the current-voltage (I–V) characteristics of Nb-powder bulk granular superconductors near the transition temperature are investigated. Experimental results on the resistive transition are explained in terms of Anderson's theory as thermally activated phase slippage, and the I–V characteristics are compared with the effects of thermal fluctuations on an array of Josephson weak links in a simplified model based on Ambegaokar and Halperin's theory of thermal noise in the Josephson effect.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00114967
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...