Analysis of Inclusions in a Counter-pressure Casting Aluminum Alloy Steering Knuckle

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Analysis of Inclusions in a Counter-pressure Casting Aluminum Alloy Steering Knuckle
Vol. 38, Issue 1, Pages: 40-44(2018)
Published： 2018 ，
DOI： 10.15980/j.tzzz.2018.01.011

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[1]李鹏飞,杨弋涛.差压铸造铝合金汽车转向节的夹杂物分析[J].特种铸造及有色合金,2018,38(01):40-44.

Li Pengfei, Yang Yitao. Analysis of Inclusions in a Counter-pressure Casting Aluminum Alloy Steering Knuckle. [J]. Special Casting & Nonferrous Alloys 38(1):40-44(2018)
[1]李鹏飞,杨弋涛.差压铸造铝合金汽车转向节的夹杂物分析[J].特种铸造及有色合金,2018,38(01):40-44. DOI： 10.15980/j.tzzz.2018.01.011.

Li Pengfei, Yang Yitao. Analysis of Inclusions in a Counter-pressure Casting Aluminum Alloy Steering Knuckle. [J]. Special Casting & Nonferrous Alloys 38(1):40-44(2018) DOI： 10.15980/j.tzzz.2018.01.011.

对差压铸造生产的A356铝合金转向节铸件进行了疲劳性能测试、疲劳断口扫描、XRF观察、金相组织观察与夹杂物统计、电解萃取夹杂物、XRD和EDS等试验。结果表明

铸件中夹杂物主要是氧化夹杂物

还包括少量的氮化物、碳化物和金属杂质等

而且铸件上部的夹杂物多于下部

右侧中Al

和SiO

夹杂物的含量略高于左侧的铸件。

Some experiments for counter-pressure casting A356 aluminum alloy steering knuckle were carried out including fatigue performance test

fatigue fracture scanning

XRF experiment

metallographic observation and statistics of inclusions

electrolytic extraction inclusions

XRD and EDS analysis.The results show that inclusions in the steering knuckle are mainly the oxidized inclusions with a small amount of nitrides

carbides and metal impurities.In addition

the inclusions in the upper part are more than those in the lower part

and the inclusions such as Al

and SiO

in right side steering knuckle are slightly higher than those of the left ones.

A356铝合金夹杂物电解萃取断口分析

A356Aluminum AlloysInclusionsElectrolytic ExtractionFracture Analysis

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