3月22日,Major All Stars总决赛在马来西亚首度吉隆坡落下帷幕,代表中国参赛的iG收获了最终冠军。值得一提的是,这也是B神加盟iG以来收获的首个线下赛冠军!MB组合线下首秀参加本次MAS总决赛的共有8支队伍,除了iG之外,还有Na’Vi、Empire...3月22日,Major All Stars总决赛在马来西亚首度吉隆坡落下帷幕,代表中国参赛的iG收获了最终冠军。值得一提的是,这也是B神加盟iG以来收获的首个线下赛冠军!MB组合线下首秀参加本次MAS总决赛的共有8支队伍,除了iG之外,还有Na’Vi、Empire、Rave等世界一线队伍。在这些参赛队中,Na’Vi和Empire无疑是iG的最大对手。展开更多
The effects of laser shock peening(LSP)on the microstructural evolution and mechanical properties of the Ti6242 alloy,including the residual stress,surface roughness,Vickers microhardness,tensile mechanical response,a...The effects of laser shock peening(LSP)on the microstructural evolution and mechanical properties of the Ti6242 alloy,including the residual stress,surface roughness,Vickers microhardness,tensile mechanical response,and high-cycle fatigue properties,were studied.The results showed that the LSP induced residual compressive stresses on the surface and near surface of the material.The maximum surface residual compressive stress was−661 MPa,and the compressive-stress-affected depth was greater than 1000μm.The roughness and Vickers micro-hardness increased with the number of shocks,and the maximum hardness-affected depth was about 700μm after three LSP treatments.LSP enhanced the fraction of low-angle grain boundaries,changed the grain preferred orientations,and notably increased the pole density ofαphase on the near surface from 2.41 to 3.46.The surface hardness values of the LSP samples increased with the increase of the number of shocks due to work hardening,while the LSP had a limited effect on the tensile properties.The high-cycle fatigue life of the LSP-treated sample was significantly enhanced by more than 20%compared with that of the untreated sample,which was caused by the suppression of the initiation and propagation of fatigue cracks.展开更多
文摘3月22日,Major All Stars总决赛在马来西亚首度吉隆坡落下帷幕,代表中国参赛的iG收获了最终冠军。值得一提的是,这也是B神加盟iG以来收获的首个线下赛冠军!MB组合线下首秀参加本次MAS总决赛的共有8支队伍,除了iG之外,还有Na’Vi、Empire、Rave等世界一线队伍。在这些参赛队中,Na’Vi和Empire无疑是iG的最大对手。
基金the National Natural Science Foundation of China(No.52205240).
文摘The effects of laser shock peening(LSP)on the microstructural evolution and mechanical properties of the Ti6242 alloy,including the residual stress,surface roughness,Vickers microhardness,tensile mechanical response,and high-cycle fatigue properties,were studied.The results showed that the LSP induced residual compressive stresses on the surface and near surface of the material.The maximum surface residual compressive stress was−661 MPa,and the compressive-stress-affected depth was greater than 1000μm.The roughness and Vickers micro-hardness increased with the number of shocks,and the maximum hardness-affected depth was about 700μm after three LSP treatments.LSP enhanced the fraction of low-angle grain boundaries,changed the grain preferred orientations,and notably increased the pole density ofαphase on the near surface from 2.41 to 3.46.The surface hardness values of the LSP samples increased with the increase of the number of shocks due to work hardening,while the LSP had a limited effect on the tensile properties.The high-cycle fatigue life of the LSP-treated sample was significantly enhanced by more than 20%compared with that of the untreated sample,which was caused by the suppression of the initiation and propagation of fatigue cracks.
