铜仁学院学报
銅仁學院學報
동인학원학보
JOURNAL OF TONGREN UNIVERSITY
2011年
4期
133-138
,共6页
A356合金%疲劳寿命%拟合%数理统计
A356閤金%疲勞壽命%擬閤%數理統計
A356합금%피로수명%의합%수리통계
A356 alloys%fatigue life%fitting%mathematical statistics
研究了不同加钛方式和钛含量对A356合金低周疲劳性能的影响，并重点对实验数据进行了数理统计分析，拟合了四种合金的Manson-Confin方程，分析了实验数据的统计可靠性与显著性。结果表明，A356合金低周疲劳寿命对加钛方式不敏感，其疲劳寿命仅受合金中Ti含量影响。无论电解加钛合金还是熔配加钛合金，Ti含量为0．1％的合金较0．14％的合金具有更优异的低周疲劳性能。
研究瞭不同加鈦方式和鈦含量對A356閤金低週疲勞性能的影響，併重點對實驗數據進行瞭數理統計分析，擬閤瞭四種閤金的Manson-Confin方程，分析瞭實驗數據的統計可靠性與顯著性。結果錶明，A356閤金低週疲勞壽命對加鈦方式不敏感，其疲勞壽命僅受閤金中Ti含量影響。無論電解加鈦閤金還是鎔配加鈦閤金，Ti含量為0．1％的閤金較0．14％的閤金具有更優異的低週疲勞性能。
연구료불동가태방식화태함량대A356합금저주피로성능적영향，병중점대실험수거진행료수리통계분석，의합료사충합금적Manson-Confin방정，분석료실험수거적통계가고성여현저성。결과표명，A356합금저주피로수명대가태방식불민감，기피로수명부수합금중Ti함량영향。무론전해가태합금환시용배가태합금，Ti함량위0．1％적합금교0．14％적합금구유경우이적저주피로성능。
The effects of Ti-addition methods and Ti contents on the low-cycle fatigue （LCF） properties of A356 alloys were investigated, as well as the mathematical statistics analysis of the experimental data of four alloys was chiefly performed, including their fittings of Manson-Confin equations and the analysis of statistics reliability and significance. It is fotmd that the LCF life of A356 alloys is insensitive to the Ti-addition method, and is only influenced by the Ti content in the alloys. Whether added by electrolysis or by melting AI-Ti master alloy, A356 alloys with 0.1%Ti content exhibited the better LCF properties in comparion to those of A356 alloys with 0.14%Ti content.
