摘要
根据固体中的弹性波理论,通过测量M50NiL及M50钢中超声横波、纵波声速及材料密度,评定了M50NiL钢退火、淬火和回火态及M50钢回火态的杨氏模量及泊松比。结果表明,M50NiL钢退火、淬火和回火态的杨氏模量差别很小,泊松比几乎相同;M50钢回火态比M50NiL钢回火态的杨氏模量大2.3%。声学法测得M50NiL钢回火态的杨氏模量与拉伸试验测定值及文献中的参考值相近,表明声学法评估材料弹性模量的方法可行。
Based on the theory of elastic waves in solids, by measuring ultrasonic longitudinal and transverse wave velocity and materials density, Young＇s modulus and Poisson＇s ratio of annealed, quenched, tempered MSONiL and tempered M50 bearing steel were evaluated. The results show that there is small variation among the annealed, quenched and tempered MSONiL, and the Poisson＇s ratio is almost the same. Young＇s modu]us of the tempered M.50 is 2.3% higher than that of the tempered M50NiL. Young＇s modulus of the tempered M50NiL determined by ultrasonic method is similar to that by tensile test and value from references. Experimental results prove the feasibility of the ultrasonic method.
出处
《金属热处理》
CAS
CSCD
北大核心
2013年第6期54-57,共4页
Heat Treatment of Metals
