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首页> 外文会议>International Conference on Manufacturing Engineering and Intelligent Materials >Gradually Changing Surface Microstructure and Impact Resistance of Hot Formed 10CrNi3MoV Marine Steel
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Gradually Changing Surface Microstructure and Impact Resistance of Hot Formed 10CrNi3MoV Marine Steel

机译：逐步改变热形成的热形成的表面微观结构和抗冲击性

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Microstructural changes of 10CrNi3MoV marine steel before and after hot forming were detected by testing devices such as X-ray diffractometer, the formation causes and law of gradually changing surface microstructure of hot-formed material and those of the interior martensite structure were analyzed. The study shows that the gradually changing surface microstructure formed in 10CrNi3MoV marine steel after hot forming makes the material hardness increases sharply from surface to interior within the 0-0.25mm surface depth scope, and the hardness is maintained at 40-45HRC after reaching the 0.25mm depth; the material malleability decreases evidently from surface to interior within the 0-0.25mm surface depth scope, with the change amplitude being great, and the decrease amplitude is obviously reduced at the 0.25-0.50mm depth scope, and becomes very small after the 0.50mm depth is reached; the role of its gradually changing surface microstructure and the display of large malleability characteristic by the soft outer layer prevent the interior high-strength martensite from premature failure in the impact process, and enable a gentle structural peak value, and the gentle impact level and the gradual failure of the material enable the structure to keep a high energy absorption capacity and impact resistance. This indicates that hot-formed 10CrNi3MoV marine steel combines the excellent properties of single-phase materials, and is suitable for structural members that should withstand impact and absorb energy.
机译：通过诸如X射线衍射仪的测试装置，分析了诸如X射线衍射仪的试验装置之前和之后的10crni3mov船钢的微观结构变化，逐渐改变热成形材料表面微观结构的形成原因和定律及内部马氏体结构的结构。该研究表明，在热成形后，在10crNi3MoV船钢中形成的逐渐变化的表面微观结构使得材料硬度从表面到0-0.25mm的表面深度范围内急剧增加，并且在达到0.25后，硬度保持在40-45HRC之后mm深;在0-0.25mm的表面深度范围内，材料磁带性显然从表面到内部减少，变化幅度很大，减小幅度明显减少在0.25-0.50mm深度范围内，并且在0.50mm后变得非常小深度达到;其逐渐变化的表面微观结构和大型磁性外层的显示器的作用防止了内部高强度马氏体在冲击过程中的过早失效，并实现了温和的结构峰值，以及温和的冲击水平材料的逐渐失效使得结构保持高能量吸收能力和抗冲击性。这表明热成型的10Crni3Mov船用钢结合了单相材料的优异性能，适用于应承受撞击和吸收能量的结构构件。

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