Microcracking behavior of a TiAl-base alloy with different microstructures during compression

Weijun Zhang; Guoliang Chen; E. Evangelista; L. Francesconi

Microcracking behavior of a TiAl-base alloy with different microstructures during compression

Weijun Zhang^*
, Guoliang Chen
, E. Evangelista
, L. Francesconi

^*Corresponding author for this work

University of Science and Technology Beijing

Research output: Contribution to journal › Article › peer-review

Abstract

The microcracking behavior of TiAl-based alloys with the duplex and fully-lamellar microstructures was studied during compression. It was found that the fracture involves propagation of the existing microcracks and development of more new nuclei, instead of being a nucleation-controlled event. The lamellar interfaces, especially those having an angle of about 0°-30° to the loading axis, were found to be the favorable nucleation sites. Microcrack nucleation is likely to be initiated by tensile normal stress concentrated on the lamellar interfaces.

Original language	English
Pages (from-to)	415-418
Number of pages	4
Journal	Shiyou Huagong/Petrochemical Technology
Volume	27
Issue number	10
State	Published - 1998
Externally published	Yes

Cite this

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title = "Microcracking behavior of a TiAl-base alloy with different microstructures during compression",

abstract = "The microcracking behavior of TiAl-based alloys with the duplex and fully-lamellar microstructures was studied during compression. It was found that the fracture involves propagation of the existing microcracks and development of more new nuclei, instead of being a nucleation-controlled event. The lamellar interfaces, especially those having an angle of about 0°-30° to the loading axis, were found to be the favorable nucleation sites. Microcrack nucleation is likely to be initiated by tensile normal stress concentrated on the lamellar interfaces.",

author = "Weijun Zhang and Guoliang Chen and E. Evangelista and L. Francesconi",

year = "1998",

language = "英语",

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AU - Zhang, Weijun

AU - Chen, Guoliang

AU - Evangelista, E.

AU - Francesconi, L.

PY - 1998

Y1 - 1998

N2 - The microcracking behavior of TiAl-based alloys with the duplex and fully-lamellar microstructures was studied during compression. It was found that the fracture involves propagation of the existing microcracks and development of more new nuclei, instead of being a nucleation-controlled event. The lamellar interfaces, especially those having an angle of about 0°-30° to the loading axis, were found to be the favorable nucleation sites. Microcrack nucleation is likely to be initiated by tensile normal stress concentrated on the lamellar interfaces.

AB - The microcracking behavior of TiAl-based alloys with the duplex and fully-lamellar microstructures was studied during compression. It was found that the fracture involves propagation of the existing microcracks and development of more new nuclei, instead of being a nucleation-controlled event. The lamellar interfaces, especially those having an angle of about 0°-30° to the loading axis, were found to be the favorable nucleation sites. Microcrack nucleation is likely to be initiated by tensile normal stress concentrated on the lamellar interfaces.

UR - https://www.scopus.com/pages/publications/0032274848

M3 - 文章

AN - SCOPUS:0032274848

SN - 1000-8144

VL - 27

SP - 415

EP - 418

JO - Shiyou Huagong/Petrochemical Technology

JF - Shiyou Huagong/Petrochemical Technology

IS - 10

ER -

Microcracking behavior of a TiAl-base alloy with different microstructures during compression

Abstract

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