ANALYSIS OF MATERIAL RELIABILITY OF AlSi17Cu5 ALLOY USING STATISTICAL WEIBULL DISTRIBUTION

被引：0

作者：

Piatkowski, J. ^{[1
]}

Jablonska, M. ^{[1
]}

机构：

[1] Silesian Tech Univ, Fac Mat Sci & Met, Katowice, Poland

来源：

METALURGIJA | 2014年 / 53卷 / 04期

关键词：

cast Al-Si alloy; material and technological reliability; Weibull distribution; reliability theory;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Analysis of reliability of AlSi17Cu5 alloy was carried out using the so-called "permanence measure". Two-parameter Weibull distribution, defining stability of material features, is its numerical equivalent. Mechanical properties (HB hardness HB, tensile strength R-m ' and yield strength R-0,R-2) were selected as parameters for statistical evaluation, whereas inoculation with phosphorus (CuP10) and overheating to 920 degrees C (separately and jointly) together with intense cooling of the alloy were the factors shaping the influence of technology type. Statistical calculations, preceded by verification of hypotheses on conformity of distribution of the investigated resultant characteristics with normal distribution, were supported with variance estimators, and correlation and regression analyses.

引用

页码：617 / 620

页数：4

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