The influence of rolling temperatures performed at ambient and cryogenic conditions in the interval of deformations ε = <10; 50> (%) on structural development and mechanical properties of steel grade AISI 316LN was studied. The evaluations of microstructures were studied by optical and transmission electron microscopy. The initial strength properties of the material after solution annealing tested at 293 K were: R_P0,2 = 325 MPa, R_m = 640 MPa, and A5 = 49%. The biggest values of strength properties were obtained by material processing at cryorolling conditions with thickness reduction of 50% and tested at 77 K as follows: R_P0,2 = 1571 MPa, R_m = 1880 MPa, and A5 = 4%. From the analysis, it is resulted that the dislocation slip is the main mechanism of plastic deformation realized by rolling at ambient temperatures; at cryogenic temperatures, it is possible to observe a combination of dislocation slip accompanied with deformation twinning.

中文翻译：

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加工条件对AISI 316LN钢种性能的影响

轧制温度在环境温度和低温条件下的变形间隔ε  = <10; 50>（％）对钢种AISI 316LN的组织发展和力学性能进行了研究。通过光学和透射电子显微镜研究了微观结构的评价。在293 K下进行固溶退火后，材料的初始强度特性为：R _P0.2  = 325 MPa，R _m  = 640 MPa，A5 = 49％。强度性能的最大值是在低温轧制条件下通过材料加工获得的，厚度减小了50％，并在77 K下进行了如下测试：R _P0.2  = 1571 MPa，R _m = 1880 MPa，A5 = 4％。分析表明，位错滑移是环境温度下轧制实现塑性变形的主要机理。在低温下，可以观察到位错滑移和变形孪生的组合。