Influence of superplastic strain-heat treatment on the mechanical behaviour of aluminum-lithium alloy 1420

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Influence of superplastic strain-heat treatment on the mechanical behaviour of aluminum-lithium alloy 1420. / Rabinovich, M. Kh; Markushev, M. V.; Murashkin, M. Yu.

In: Materials Science Forum, Vol. 170-172, 01.12.1994, p. 243-248.

Research output: Contribution to journal › Conference article › peer-review

BibTeX

@article{ded9eb0ceaad44178d8b972ce8368382,

title = "Influence of superplastic strain-heat treatment on the mechanical behaviour of aluminum-lithium alloy 1420",

abstract = "The peculiarities of the influences of superplastic strain-heat treatment (SPSHT) on the mechanical properties, especially crack resistance, have been established for the aluminum alloy 1420 (Al-Mg-Li). SPSHT of coarse-crystalline (CC) blanks leads to the formation of microcrystalline (MC) structure in them, while a conventional treatment (isothermal forging) produces preferably unrecrystallized structure. The influence of grain refinement and SPSHT is directly manifested in the difficulty of static cracks initiation and in facilitating their growth. Blanks with MC structure and those obtained by superplastic deformation are recommended for the production of the principle parts whose service life is limited by the first crack appearance. When it is necessary to ensure the exploitation of parts with cracks the use of CC blanks manufactured by conventional hot isothermal forming is preferable.",

author = "Rabinovich, {M. Kh} and Markushev, {M. V.} and Murashkin, {M. Yu}",

year = "1994",

month = dec,

day = "1",

language = "English",

volume = "170-172",

pages = "243--248",

journal = "Materials Science Forum",

issn = "0255-5476",

publisher = "Trans Tech Publications Ltd",

note = "Proceedings of the 1994 International Conference on Superplasticity in Advanced Materials (ICSAM-94) ; Conference date: 24-05-1994 Through 26-05-1994",

}

RIS

TY - JOUR

T1 - Influence of superplastic strain-heat treatment on the mechanical behaviour of aluminum-lithium alloy 1420

AU - Rabinovich, M. Kh

AU - Markushev, M. V.

AU - Murashkin, M. Yu

PY - 1994/12/1

Y1 - 1994/12/1

N2 - The peculiarities of the influences of superplastic strain-heat treatment (SPSHT) on the mechanical properties, especially crack resistance, have been established for the aluminum alloy 1420 (Al-Mg-Li). SPSHT of coarse-crystalline (CC) blanks leads to the formation of microcrystalline (MC) structure in them, while a conventional treatment (isothermal forging) produces preferably unrecrystallized structure. The influence of grain refinement and SPSHT is directly manifested in the difficulty of static cracks initiation and in facilitating their growth. Blanks with MC structure and those obtained by superplastic deformation are recommended for the production of the principle parts whose service life is limited by the first crack appearance. When it is necessary to ensure the exploitation of parts with cracks the use of CC blanks manufactured by conventional hot isothermal forming is preferable.

AB - The peculiarities of the influences of superplastic strain-heat treatment (SPSHT) on the mechanical properties, especially crack resistance, have been established for the aluminum alloy 1420 (Al-Mg-Li). SPSHT of coarse-crystalline (CC) blanks leads to the formation of microcrystalline (MC) structure in them, while a conventional treatment (isothermal forging) produces preferably unrecrystallized structure. The influence of grain refinement and SPSHT is directly manifested in the difficulty of static cracks initiation and in facilitating their growth. Blanks with MC structure and those obtained by superplastic deformation are recommended for the production of the principle parts whose service life is limited by the first crack appearance. When it is necessary to ensure the exploitation of parts with cracks the use of CC blanks manufactured by conventional hot isothermal forming is preferable.

UR - http://www.scopus.com/inward/record.url?scp=0040243903&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0040243903

VL - 170-172

SP - 243

EP - 248

JO - Materials Science Forum

JF - Materials Science Forum

SN - 0255-5476

T2 - Proceedings of the 1994 International Conference on Superplasticity in Advanced Materials (ICSAM-94)

Y2 - 24 May 1994 through 26 May 1994

ER -

ID: 42940757