The white layer is practically nanocrystalline quenched martensite with great lattice distortion and internal stress.
白亮层的本质是纳米晶淬火马氏体,晶格畸变大,内应力大;另一方面,模具几何尺寸如尖角效应,也产生局部应力集中。
It has been found that the reasor of early fracture of sheller is that the retained austenite was transformed into the quenched martensite and strain induced martensite during the service.
结果表明,造成退壳器早期断裂失效的原因是,零件在低温(-60℃)和循环载荷作用下,在使用期间部分残余奥氏体转变为淬火马氏体及应变诱发马氏体,从而在构件内部产生大量的应力集中源,疲劳裂纹首先萌发于此处,然后快速扩展直至断裂。
The white layer is practically nanocrystalline quenched martensite with great lattice distortion and internal stress.
白亮层的本质是纳米晶淬火马氏体,晶格畸变大,内应力大；另一方面,模具几何尺寸如尖角效应,也产生局部应力集中。
In this paper, the experiments on stress-phase transformation interactions during martensitic quenching of steel are conducted.
本文进行了有关钢在马氏体淬火过程中应力与相变相互作用的实验研究，在此基础上提出了一种预测钢的马氏体淬火残余应力的较完整的数学模型。
The process and properties of 77752 rolling mill bearing made by 100CrMo7 steel bainite hardening were introduced.
介绍了 1 0 0 Cr Mo7钢制 77752轧机轴承的贝氏体淬火处理工艺及其性能 ;用 1 0 0 Cr Mo7钢制轧机轴承进行贝氏体淬火代替 G2 0 Cr2 Ni4A钢制轧机轴承渗碳淬火 ,具有良好的经济技术效益。
With the same condition of 850 ℃quenching temperature,the hysteresis property of tempered troostite spring element is less than that of tempered martensite and tempered sorbite.
结果表明,下贝氏体组织弹误差体滞后误差最小;850℃相同淬火温度条件下,回火屈氏体组织弹性体的滞后性小于回火马氏体和回火索氏体组织弹性体的;亚温淬火和高温淬火增大弹性体的滞后性。