Effects of B and Si on the fracture toughness of the Nb-Si alloys

Zhiping Sun; Xiping Guo; Xiaodong Tian; Liang Zhou

doi:10.1016/j.intermet.2014.06.005

Effects of B and Si on the fracture toughness of the Nb-Si alloys

Zhiping Sun
, Xiping Guo
, Xiaodong Tian
, Liang Zhou

School of Materials Sience and Engineering

Chang'an University

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

28 Scopus citations

Abstract

Nb-Si alloys have been widely considered as the potential candidate materials for turbine applications. Optimal amounts of B and Si addition to Nb-18Ti-14Si (at%, F1) were identified based on Nb-Ti-Si-B phase diagram. Nb-18Ti-14Si-4.5B (F2) had been obtained desirable (Nb) + T2 eutectic and significantly improved fracture toughness from 7.85 (F1) to 11.98 MPa m ^1/2. With extra 3Si addition, F3 (Nb-18Ti-17Si-4.5B) consisted of primary T2 and (Nb) + T2 eutectic, it retained comparable fracture toughness of 11.76 MPa m^1/2, even excessive amounts of primary T2 do not compromise fracture toughness.

Original language	English
Pages (from-to)	143-147
Number of pages	5
Journal	Intermetallics
Volume	54
DOIs	https://doi.org/10.1016/j.intermet.2014.06.005
State	Published - Nov 2014

Keywords

A. Composites
A. Multiphase intermetallics
B. Alloy design
B. Fracture toughness
C. Casting

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10.1016/j.intermet.2014.06.005

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title = "Effects of B and Si on the fracture toughness of the Nb-Si alloys",

abstract = "Nb-Si alloys have been widely considered as the potential candidate materials for turbine applications. Optimal amounts of B and Si addition to Nb-18Ti-14Si (at\%, F1) were identified based on Nb-Ti-Si-B phase diagram. Nb-18Ti-14Si-4.5B (F2) had been obtained desirable (Nb) + T2 eutectic and significantly improved fracture toughness from 7.85 (F1) to 11.98 MPa m 1/2. With extra 3Si addition, F3 (Nb-18Ti-17Si-4.5B) consisted of primary T2 and (Nb) + T2 eutectic, it retained comparable fracture toughness of 11.76 MPa m1/2, even excessive amounts of primary T2 do not compromise fracture toughness.",

keywords = "A. Composites, A. Multiphase intermetallics, B. Alloy design, B. Fracture toughness, C. Casting",

author = "Zhiping Sun and Xiping Guo and Xiaodong Tian and Liang Zhou",

year = "2014",

month = nov,

doi = "10.1016/j.intermet.2014.06.005",

language = "英语",

volume = "54",

pages = "143--147",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Effects of B and Si on the fracture toughness of the Nb-Si alloys

AU - Sun, Zhiping

AU - Guo, Xiping

AU - Tian, Xiaodong

AU - Zhou, Liang

PY - 2014/11

Y1 - 2014/11

N2 - Nb-Si alloys have been widely considered as the potential candidate materials for turbine applications. Optimal amounts of B and Si addition to Nb-18Ti-14Si (at%, F1) were identified based on Nb-Ti-Si-B phase diagram. Nb-18Ti-14Si-4.5B (F2) had been obtained desirable (Nb) + T2 eutectic and significantly improved fracture toughness from 7.85 (F1) to 11.98 MPa m 1/2. With extra 3Si addition, F3 (Nb-18Ti-17Si-4.5B) consisted of primary T2 and (Nb) + T2 eutectic, it retained comparable fracture toughness of 11.76 MPa m1/2, even excessive amounts of primary T2 do not compromise fracture toughness.

AB - Nb-Si alloys have been widely considered as the potential candidate materials for turbine applications. Optimal amounts of B and Si addition to Nb-18Ti-14Si (at%, F1) were identified based on Nb-Ti-Si-B phase diagram. Nb-18Ti-14Si-4.5B (F2) had been obtained desirable (Nb) + T2 eutectic and significantly improved fracture toughness from 7.85 (F1) to 11.98 MPa m 1/2. With extra 3Si addition, F3 (Nb-18Ti-17Si-4.5B) consisted of primary T2 and (Nb) + T2 eutectic, it retained comparable fracture toughness of 11.76 MPa m1/2, even excessive amounts of primary T2 do not compromise fracture toughness.

KW - A. Composites

KW - A. Multiphase intermetallics

KW - B. Alloy design

KW - B. Fracture toughness

KW - C. Casting

UR - https://www.scopus.com/pages/publications/84903608414

U2 - 10.1016/j.intermet.2014.06.005

DO - 10.1016/j.intermet.2014.06.005

M3 - 文章

AN - SCOPUS:84903608414

SN - 0966-9795

VL - 54

SP - 143

EP - 147

JO - Intermetallics

JF - Intermetallics

ER -

Effects of B and Si on the fracture toughness of the Nb-Si alloys

Abstract

Keywords

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