在脉冲与连续激光表面处理时,钢的原始组织对激光作用区形成特性的影响的一些观点,已在文献中论述过。但是,组织形成的规律性还未充分讨论。本文的目的是更详细地分析(?)15钢经连续CO_2激光处理时组织的形成特性。试样尺寸为25×25×150毫米,经840℃淬10%NaCl水溶液后,在200和260℃回火2小时的组织为回火马氏体,在400℃回火的组织为屈氏体——索氏体,在650℃回 Some points of view of the effect of the primary structure of steel on the formation characteristics of the laser action zone during pulsed and continuous laser surface treatment have been discussed in the literature. However, the regularity of the formation of organizations has not yet been fully discussed. The purpose of this paper is to analyze in more detail (?) The formation behavior of 15 steel with continuous CO2 laser treatment. The sample size was 25 × 25 × 150 mm. After quenching 10% NaCl solution at 840 ℃, the microstructure of tempered martensite at 200 ℃ and 260 ℃ for 2 hours was tempered martensite. The microstructure tempered at 400 ℃ was troostite Sorbite, at 650 ℃ back