Rheological Behavior of Partially-solidified Sn-15Pb Alloy Based on Constant-velocity Impression Test

Zhang Yifan; Zhou Cheng; Cao Guoming; Zhang Jing

doi:10.15980/j.tzzz.2016.01.008

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Rheological Behavior of Partially-solidified Sn-15Pb Alloy Based on Constant-velocity Impression Test
Vol. 36, Issue 1, Pages: 26-30(2016)
Published： 2016 ，
DOI： 10.15980/j.tzzz.2016.01.008

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[1]张祎凡,周成,曹国明,张菁.恒速压入法对部分凝固Sn-15Pb合金流变行为的影响[J].特种铸造及有色合金,2016,36(01):26-30.

Zhang Yifan, Zhou Cheng, Cao Guoming, et al. Rheological Behavior of Partially-solidified Sn-15Pb Alloy Based on Constant-velocity Impression Test. [J]. Special Casting & Nonferrous Alloys 36(1):26-30(2016)
[1]张祎凡,周成,曹国明,张菁.恒速压入法对部分凝固Sn-15Pb合金流变行为的影响[J].特种铸造及有色合金,2016,36(01):26-30. DOI： 10.15980/j.tzzz.2016.01.008.

Zhang Yifan, Zhou Cheng, Cao Guoming, et al. Rheological Behavior of Partially-solidified Sn-15Pb Alloy Based on Constant-velocity Impression Test. [J]. Special Casting & Nonferrous Alloys 36(1):26-30(2016) DOI： 10.15980/j.tzzz.2016.01.008.

摘要

利用恒速压入法研究了部分凝固Sn-15Pb合金的流变行为

压入速度分别为0.01、0.10以及1.00mm/s。试验温度分别为198、193、188、183℃

压入变形区呈半圆形（纵截面）。压入试验结果表明

压入载荷随着压入深度增加而增大

并最终趋于一个稳定值。通过计算证实

Sn-15Pb合金表观粘度符合经典的幂律模型与指数模型。

Abstract

The rheological behavior of semi-solid Sn-15 Pb alloy was analyzed by constant-velocity impression testing with 0.01

0.10 and 1.00mm/s at varied 198、193、188、183 ℃.The results reveal that with increasing in impression depth

impression force is increased to be constant.The calculation results reveal that apparent viscosity of Sn-15 Pb alloy is followed Ostwald power-law model and exponential relationship.

关键词

压入法部分凝固合金Sn-15Pb流变行为有限元法

Keywords

Impression TestPartially-solidified AlloySn-15Pb AlloyRheological BehaviorFinite-ele ment Method

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Overview and Prospect of Semi-Solid Casting