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氧化铝矿用渣浆泵过流件高铬铸铁Cr28的腐蚀磨损性能-资料的硬度和冲击韧度

date.png 2021-06-19 09:29:42

氧化铝矿用渣浆泵过流件高铬铸铁Cr28的腐蚀磨损性能-资料的硬度和冲击韧度:

洛氏硬度和冲击韧度的测试结果分别见表2,能够看出,树料在热处置后的冲击韧度和硬度与铸态相比都有较大的进步由于铸态组织基体大局部为奥氏体,成分很不平均,残留铸造应力和缺陷等缘由,硬度和冲击韧度均较低,经过热处置后的组织中析出二次碳化物弗局部转变为马氏体,硬度得到大幅度的进步,同时随着组织的平均化,冲击韧度也有所进步

Corrosion and wear properties of high chromium cast iron Cr28 used in alumina slurry pump

The test results of Rockwell hardness and impact toughness are shown in Table 2 respectively. It can be seen that the impact toughness and hardness of the tree material after heat treatment are greatly improved compared with that of the as cast structure. The hardness and impact toughness are relatively low due to the fact that the majority of the as cast structure matrix is austenite, the composition is very uneven, and the residual casting stress and defects, After heat treatment, the secondary carbides precipitate in the structure and transform into martensite locally. The hardness is greatly improved. At the same time, the impact toughness is also improved with the average structure


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联系人

赵立建

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0312-3596262

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18032078988

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河北省保定市安国市石佛镇工业园区

 
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