钨和H13钢的耐铝液腐蚀-磨损性能与机理

来源期刊:中国有色金属学报2013年第11期

论文作者:陈维平 方思聪 曾 勇 吴 晶 罗洪峰

文章页码:3127 - 3135

关键词:钨;H13钢;铝液;腐蚀;磨损

Key words:tungsten; H13 steel; molten aluminum; corrosion; wear

摘    要:通过铝液中的静态腐蚀,高温下的摩擦磨损和铝液中的腐蚀-磨损试验,对钨和H13钢的耐铝液腐蚀-磨损性能和机理进行研究。结果表明:钨在铝液中的平均腐蚀速率约为H13钢的1/14,在高温下的摩擦磨损性能与H13钢的相当,在腐蚀-磨损条件下钨的材料损失率仅约为H13钢的1/24,远远优于H13钢的耐铝液腐蚀-磨损性能。在腐蚀-磨损过程中,试验材料均发生了磨粒磨损,而钨的腐蚀-磨损表面生成的产物起到了很好的保护基体材料的作用。腐蚀和磨损的交互作用是造成试验材料在腐蚀-磨损条件下材料损失急剧增大的主要原因。

Abstract: The corrosion-wear resistant performance and mechanisms of tungsten and H13 steel in molten aluminum were investigated through static corrosion in molted aluminum, friction-wear tests in air at high temperature, and corrosion-wear experiments in molten aluminum. The results show that the average corrosion rate of tungsten in molten aluminum is about 1/14 of H13 steel’s, and the performances of these two materials at high temperature friction-wear condition are nearly the same. The loss rate of tungsten under corrosion-wear condition is only about 1/24 of H13 steel’s, demonstrating that the corrosion-wear resistance of tungsten is much superior to that of H13 steel. Abrasive wear occurs in the corrosion-wear tests of these two experimental materials. In addition, the matrix is well protected by reaction products of tungsten on the corrosion-wear surface. The interaction behavior of corrosion and wear under corrosion-wear condition is the main reason for the rapid increment mass loss of the test materials.

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