说明 组织结构珠光体-铁素体 本标准未规定材料的化学成分。球墨铸铁(GGG) 是一种铁-碳铸造材料, 其中含有以石墨成分存在的碳组分, 其石墨几乎全部以较大的球形形态存在。 碳当量计算 GGG-60 机械性能 抗拉强度σb Mpa 屈服点σs Mpa 断后伸长率或延伸率δ % ≥600 ≥380 ≥3近似对照表 铸铁 中国 日本...
该标准不涵盖球墨铸铁的技术交货条件(参见 EN 1559-1 和 EN 1559-3)。 用于管线和零部件的球墨铸铁也不涵盖在此标准范围内。 碳当量计算 EN-GJS-600-3 机械性能 抗拉强度 σb Mpa屈服点 σs Mpa断后伸长率或延伸率 δ % ≥600≥370≥3 新旧牌号替代列表 ...
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The study found that the average value of co-efficient of friction showed an increasing trend as the load was increased, as predicted by Amonton's law of friction. The weight loss incurred in the seat material was found to increase with increasing value of load, which follows Archard's ...
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The results showed that the microstructure has a strong effect on the material's strength, especially the density of graphite nodules in the material. This difference reinforces the idea that cast iron can undergo mechanical changes due to changes in the casting process, confirming the importance ...
A ferritic matrix in ductile cast iron is usually developed by heat treatment, giving the material increased ductility and shock resistance. The effect of microstructure and the independent influence of ferrite grain size on mechanical p... E.M.,El-Banna - 《Materials Letters》 被引量: 7发表:...
该标准不涵盖球墨铸铁的技术交货条件(参见 EN 1559-1 和 EN 1559-3)。 用于管线和零部件的球墨铸铁也不涵盖在此标准范围内。 碳当量计算 EN-GJS-600-3 机械性能 抗拉强度 σb Mpa屈服点 σs Mpa断后伸长率或延伸率 δ % ≥600≥370≥3 新旧牌号替代列表 ...
The aim of this study is to assess the feasibility of 23–8N steel as a valve material with GGG-60 seat insert by investigating the influence of temperature on its friction-wear behaviour. Reciprocating tests were performed on the tribo-pair under 20N load and at temperatures of 50°C, 100...