Effect of Cooling Rate after hot Deformation on Structure and Mechanical Properties of Low Alloy Wea

来源 :稀土学报(英文版) | 被引量 : 0次 | 上传用户:midou2000
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The effect of cooling rate after 40% hot deformation on structure and mechanical properties of low alloy wear resistance cast iron was investigated by metallographic, scanning electron microscopes and detection of properties. The results show that for the cast steel after deformed, the amount of granular carbides of precipitation during the cooling decreased with the increase of the cooling rate, but the hardness was obviously enhanced, as a result, better mechanical properties will be obtained by force air cooling (cooling rate is about 7℃·s-1). And the reason of the change for structure and mechanical properties of the cast steel were analyzed.
其他文献
继续医学教育是医学教育的重要组成部分,同时又是卫生人力资源开发的主要途径和重要手段。因此,有必要对目前继续医学教育开展中存在的问题进行探讨,以不断改革和完善继续医学教
潮州市饶平县华侨中学创办于1958年3月,2004年12月晋升为广东雪一级学校,2009年成为饶平县第二所高级中学。
在实际钻井勘探中常遇到钻井液遭受CO2污染问题,这使得钻井液的性能发生恶化现象,而且对环境也造成污染。下面我们通过对钻井液CO2污染机理进行研究,找到可以解决这一问题的
化学需氧量是衡量水中有机物含量多少的一个重要指标,目前国标重铬酸钾法回流时间长,试剂消耗量大.本文采用密封微波消解测定COD,具有消解时间短,一次处理样品多,使用试剂量
功能梯度材料是一种新型材料,由于其结构和性能的优异特性,已成为材料领域研究的热点.对国内外功能梯度材料的研究进展进行了综述,重点阐述了功能梯度材料的制备、应用及其发
不管在什么时期,一个企业的管理中,安全永远是第一位的,只有拥有了完善的安全管理体系,才能使企业蓬勃、长效、稳定的发展。
The kinetics of pressure leaching high iron sphalerite concentrate was studied. The effects of agitation rate, temperature, oxygen partial pressure, initial aci
Heavy duty engine valve head was prepared by Ni76Cr19AlTi alloy. It was coated by cobalt-base alloy on the surface to promote its wear-resistance. Hardness test
Effect of rapid quenching on the electrochemical properties of AB5 and AB3.5-type hydrogen storage alloys was studied. The results indicated that the discharge
Alumina nanostructures were obtained by two-step anodization process. The porous anodic aluminum oxide(AAO) membranes were anodized in oxalic acid, which was su