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“层状撕裂”是控轧钢板一种常见的开裂现象。使用中是否因出现“层状撕裂”现象而不安全呢?为此我们就其主要力学性能对16Mn控轧钢进行了研究。经过对四种不同的控轧制度的16Mn钢低温拉伸、低温冲击和不同温度不同层数的DT试验进行了大量的试验分析。室温27℃到-100℃的拉伸试验!强度有一定的增加,但塑性井无明显地降低。从系列温度夏比冲击和不同温度不同层数的DT试验(同时记录力——时间曲线)得到:由于层裂产生使冲击韧性和DT能随温度转变曲线分成四个阶段,并加宽了过渡区的温度范围,导致了下平台向低温侧的移动。总之由于层裂出现使材料韧性指标提高了,并对温度变化也不敏感了。@栗玉珍$“层状撕裂”是控轧钢板一种常见的开裂现象。使用中是否因出现“层状撕裂”现象而不安全呢?为此我们就其主要力学性能对16Mn控轧钢进行了研究。经过对四种不同的控轧制度的16Mn钢低温拉伸、低温冲击和不同温度不同层数的DT试验进行了大量的试验分析。室温27℃到-100℃的拉伸试验!强度有一定的增加,但塑性井无明显地降低。从系列温度夏比冲击和不同温度不同层数的DT试验(同时记录力——时间曲线)得到:由于层裂产生使冲击韧性和DT能随温度转变曲线分成四个阶段,并加宽了过渡区的温度范围,导致了下平台向低温侧的移。
“Layered tear” is a common cracking of rolled steel sheet. Is it unsafe to use the “lamellar tearing” phenomenon? For this reason we have studied 16Mn controlled rolling steels for their main mechanical properties. After a lot of experiments and analyzes on four kinds of different rolling control of 16Mn steel low temperature tensile, low temperature impact and different temperature DT test different layers. Tensile test at room temperature from 27 ℃ to -100 ℃! There is a certain increase in strength, but no obvious decrease in plastic wells. From the series of temperature Charpy impact and DT tests of different layers at different temperatures (simultaneous recording of the force-time curve), the transition ductility and DT energy change with temperature are divided into four phases and the transition is broadened The temperature range of the zone has caused the lower platform to move toward the low temperature side. In short, due to the emergence of the splint to make the material toughness index increased, and the temperature changes are not sensitive. @ Li Yuzhen $ “Layered tear” is a common cracking of rolled steel plate. Is it unsafe to use the “lamellar tearing” phenomenon? For this reason we have studied 16Mn controlled rolling steels for their main mechanical properties. After a lot of experiments and analyzes on four kinds of different rolling control of 16Mn steel low temperature tensile, low temperature impact and different temperature DT test different layers. Tensile test at room temperature from 27 ℃ to -100 ℃! There is a certain increase in strength, but no obvious decrease in plastic wells. From the series of temperature Charpy impact and DT tests of different layers at different temperatures (simultaneous recording of the force-time curve), the transition ductility and DT energy change with temperature are divided into four phases and the transition is broadened The temperature range of the zone results in the lower platform moving to the lower temperature side.