This paper Presents experimental data on effect of carbon concentration and laser processing regimes on retained austenite quantity. The data on retained austenite decomposition during subsequent temperings at vario...This paper Presents experimental data on effect of carbon concentration and laser processing regimes on retained austenite quantity. The data on retained austenite decomposition during subsequent temperings at various temperatures as well as after holding at room temperature during 3 years are given.Correla- tion between structural broadening of the X - ray lines of retained gamma - phase and the amount of the latter has been discovered.Mechanisms responsible for the increased quantity of the retained austen- ite in carbon and low alloyed steels after laser hardening are described.展开更多
Spot laser welding was applied for fastening of protective bearing washers.Corresponding technology and laser welding plants are described. Correlation between appearance of the spot welds and their quality was dis...Spot laser welding was applied for fastening of protective bearing washers.Corresponding technology and laser welding plants are described. Correlation between appearance of the spot welds and their quality was discovered. Mechanism of the welding distortion has been revealed.展开更多
文摘This paper Presents experimental data on effect of carbon concentration and laser processing regimes on retained austenite quantity. The data on retained austenite decomposition during subsequent temperings at various temperatures as well as after holding at room temperature during 3 years are given.Correla- tion between structural broadening of the X - ray lines of retained gamma - phase and the amount of the latter has been discovered.Mechanisms responsible for the increased quantity of the retained austen- ite in carbon and low alloyed steels after laser hardening are described.
文摘Spot laser welding was applied for fastening of protective bearing washers.Corresponding technology and laser welding plants are described. Correlation between appearance of the spot welds and their quality was discovered. Mechanism of the welding distortion has been revealed.
