Toughening and strengthening behavior of an Nb-8Si-20Ti-6Hf alloy with addition of Cr

J. Sha; C. Yang; J. Liu

doi:10.1016/j.scriptamat.2010.02.023

Toughening and strengthening behavior of an Nb-8Si-20Ti-6Hf alloy with addition of Cr

J. Sha^*
, C. Yang
, J. Liu

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

61 Scopus citations

Abstract

The microstructure, fracture toughness and effect of temperature on the strength of Nb-8Si-20Ti-6Hf-(6,10,14)Cr alloys were studied. Fracture toughness was decreased by addition of Cr. It is interesting that, up to 1150 °C, the hardness or strength was improved by addition of Cr, whereas above that temperature the strength decreased. As the Cr content increased from 6 to 14 at.%, the yield strength σ_0.2 increased from 268 to 313 MPa at 1150 °C, but decreased from 125 to 85 MPa at 1350 °C.

Original language	English
Pages (from-to)	859-862
Number of pages	4
Journal	Scripta Materialia
Volume	62
Issue number	11
DOIs	https://doi.org/10.1016/j.scriptamat.2010.02.023
State	Published - Jun 2010

Keywords

Fracture toughness
High-temperature strength
Intermetallics
Microstructure

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10.1016/j.scriptamat.2010.02.023

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title = "Toughening and strengthening behavior of an Nb-8Si-20Ti-6Hf alloy with addition of Cr",

abstract = "The microstructure, fracture toughness and effect of temperature on the strength of Nb-8Si-20Ti-6Hf-(6,10,14)Cr alloys were studied. Fracture toughness was decreased by addition of Cr. It is interesting that, up to 1150 °C, the hardness or strength was improved by addition of Cr, whereas above that temperature the strength decreased. As the Cr content increased from 6 to 14 at.\%, the yield strength σ0.2 increased from 268 to 313 MPa at 1150 °C, but decreased from 125 to 85 MPa at 1350 °C.",

keywords = "Fracture toughness, High-temperature strength, Intermetallics, Microstructure",

author = "J. Sha and C. Yang and J. Liu",

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T1 - Toughening and strengthening behavior of an Nb-8Si-20Ti-6Hf alloy with addition of Cr

AU - Sha, J.

AU - Yang, C.

AU - Liu, J.

PY - 2010/6

Y1 - 2010/6

N2 - The microstructure, fracture toughness and effect of temperature on the strength of Nb-8Si-20Ti-6Hf-(6,10,14)Cr alloys were studied. Fracture toughness was decreased by addition of Cr. It is interesting that, up to 1150 °C, the hardness or strength was improved by addition of Cr, whereas above that temperature the strength decreased. As the Cr content increased from 6 to 14 at.%, the yield strength σ0.2 increased from 268 to 313 MPa at 1150 °C, but decreased from 125 to 85 MPa at 1350 °C.

AB - The microstructure, fracture toughness and effect of temperature on the strength of Nb-8Si-20Ti-6Hf-(6,10,14)Cr alloys were studied. Fracture toughness was decreased by addition of Cr. It is interesting that, up to 1150 °C, the hardness or strength was improved by addition of Cr, whereas above that temperature the strength decreased. As the Cr content increased from 6 to 14 at.%, the yield strength σ0.2 increased from 268 to 313 MPa at 1150 °C, but decreased from 125 to 85 MPa at 1350 °C.

KW - Fracture toughness

KW - High-temperature strength

KW - Intermetallics

KW - Microstructure

UR - https://www.scopus.com/pages/publications/77949916868

U2 - 10.1016/j.scriptamat.2010.02.023

DO - 10.1016/j.scriptamat.2010.02.023

M3 - 文章

AN - SCOPUS:77949916868

SN - 1359-6462

VL - 62

SP - 859

EP - 862

JO - Scripta Materialia

JF - Scripta Materialia

IS - 11

ER -

Toughening and strengthening behavior of an Nb-8Si-20Ti-6Hf alloy with addition of Cr

Abstract

Keywords

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