CAJ | 학술논문

研究了不同淬火温度、不同冷却方式对新型D2钢硬度及组织的影响。讨论了不同淬火温度下新型D2钢组织和性能变化的原因。结果表明，随着淬火温度的升高，在水冷、油冷、雾冷、风冷等冷却方式下，试样的硬度值都大致呈现先升高后降低的趋势，同时试样的硬度峰值出现在不同的淬火温度，水冷的硬度峰值在980℃。油冷的硬度峰值出现在980℃和1020℃。而雾冷和风冷，获得硬度峰值的淬火温度出现在980℃和1040℃左右，在1040℃淬火其峰值硬度达到61 HRC。
연구료불동쉬화온도、불동냉각방식대신형D2강경도급조직적영향。토론료불동쉬화온도하신형D2강조직화성능변화적원인。결과표명，수착쉬화온도적승고，재수랭、유랭、무랭、풍랭등냉각방식하，시양적경도치도대치정현선승고후강저적추세，동시시양적경도봉치출현재불동적쉬화온도，수랭적경도봉치재980℃。유랭적경도봉치출현재980℃화1020℃。이무랭화풍랭，획득경도봉치적쉬화온도출현재980℃화1040℃좌우，재1040℃쉬화기봉치경도체도61 HRC。
Effects of different austenizing temperature and cooling mode on microstructure and hardness of new type D2 steel were studied. The reasons of microstructure and hardness variation of D2 steel under different quenching processes were discussed. The results show that under different cooling modes, induding water cooling, oil cooling, atomizing cooling and forced air cooling the hardness of D2 steel increases and approaches a maximum value, and then decreases with the increase of austenizing temperature. The peak values of hardness appear at 980 ℃when cooled in water, and at 980 ℃ and 1020 ℃ when cooled in oil, and at 980 ℃ and 1040 ℃ when cooled by atomizing and forced air cooling. The peak value of the hardness of 61 HRC can be obtained when austenized at 1040 ℃ then by atomizing and forced air cooling.