Mechanical properties of directionally solidified lead-antimony alloys

Küçük Resim Yok

Tarih

2011

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

SPRINGER

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

The Pb-17w% Sb alloy was directionally solidified under two solidification conditions: with different temperature gradients (G=0.93-3.67 K/mm) at a constant growth rate (V=17.50 mu m/s) and with different growth rates (V=8.3-497 mu m/s) at a constant temperature gradient (G=3.67 K/mm) in a Bridgman furnace. Microstructure parameters, such as primary dendrite arm spacing (lambda(1)), secondary dendrite arm spacing (lambda(2)), and dendrite tip radius (R), were measured. The microhardness (Hv) and ultimate tensile strength (sigma) of the directional solidification samples were also measured. The influences of solidification and microstructure parameters on Hv and sigma were investigated. The results obtained in this work were compared with similar experimental researches in literatures. It is shown that the Hv and sigma values increase with the increase of G and V, but decrease with the increase of lambda(1), lambda(2), and R.

Açıklama

Anahtar Kelimeler

lead-antimony alloy, directional solidification, microstructure, mechanical properties

Kaynak

INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS

WoS Q Değeri

Q2

Scopus Q Değeri

Q1

Cilt

18

Sayı

5

Künye