An increased risk of lung, stomach, and colon cancer as well as of brain tumours has been reported in previous studies. The only significantly increased risks were those of lung cancer among men (SIR 130, 95% CI 100-167, cohorts A and B combined), and skin cancer among glass blowers (SIR 625, 95% CI 129-1827). The risk of cancer was analysed by primary site, type of work, years since first exposure, and age at diagnosis. In cohort B (450 men, 685 women), the relative risk of cancer was close to unity for both men (57 cases) and women (75 cases). Among women the risk was low (65 cases, SIR 64). In cohort A (1353 men, 1261 women), 106 primary cancers were diagnosed among men, and their standardised incidence ratio (SIR) for all cancers was 99. Our results provide atomistic insights for different signatures of the β relaxation that could be helpful for understanding the low-temperature dynamics and properties of MGs.A total of 3749 workers employed for at least three months in two Finnish glass factories (cohorts A and B) were followed up for cancer in 1953-86 through the Finnish Cancer Registry. Structurally, they are promoted by the higher tendency of cage-breaking events of their neighbors. Relative to that of excess wings, we find that MGs having pronounced β relaxations contain larger numbers of such jumps. However, a long-standing puzzle remains elusive: why some glasses exhibit β relaxations as pronounced peaks while others present as unobvious excess wings? Using microsecond atomistic simulation of two model metallic glasses (MGs), we demonstrate that such a difference is associated with the number of string-like collective atomic jumps. Our results provide atomistic insights for different signatures of the β relaxation that could be helpful for understanding the low-temperature dynamics and properties of MGs.ĪB - In glassy materials, the Johari-Goldstein secondary (β) relaxation is crucial to many properties as it is directly related to local atomic motions. N2 - In glassy materials, the Johari-Goldstein secondary (β) relaxation is crucial to many properties as it is directly related to local atomic motions. DE-AC02-07CH11358, including a grant of computer time at the National Energy Research Supercomputing Center (NERSC) in Berkeley, CA.Ĭopyright © 2018 American Chemical Society. Department of Energy, Basic Energy Sciences, Materials Science and Engineering Division, under Contract No. Work conducted at Ames Laboratory was supported by the U.S. acknowledges support from the German Science Foundation within the FOR 1394, P1. acknowledges support from the National Science Foundation of China (NSFC 51601064) and the National Thousand Young Talents Program of China. The computational work was carried out at the TianHe-1(A) of the National Supercomputer Center in Tianjin, China and the TianHe-2 of the National Supercomputer Center in Guangzhou, China and the Gesellschaft fur wissenschaftliche Datenverarbeitung, Göttingen (GWDG), Germany. T1 - Fundamental Link between β Relaxation, Excess Wings, and Cage-Breaking in Metallic Glasses
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