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首页> 外文期刊>Journal de Physique, IV: Proceedings of International Conference >Effects of In-Situ Proton-Irradiation and Thermal-Pulse on the High-Cycle Fatigue Properties of Low Carbon 316 Stainless Steels
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Effects of In-Situ Proton-Irradiation and Thermal-Pulse on the High-Cycle Fatigue Properties of Low Carbon 316 Stainless Steels

机译:原位质子辐照和热脉冲对低碳316不锈钢高循环疲劳性能的影响

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摘要

For the modified 316L stainless steel in which the dislocation interaction governs the fatigue hardening process, the high-cycle fatigue tests were carried out between 300 and 403 K. The in situ irradiation tests and the in situ thermal-pulse tests indicate that dislocation rearrangements due to thermal-pulse give rise to an increase in the areal density of persistent slip bands (PSBs), resulting in elongation of the fatigue life Nnd an introduction of obstacles to dislocation motions, irradiation induced lattice defects or the fatigue induced precipitates, brings about a decrease in the areal density of PSBs, giving shortening of Nf.
机译:对于位错相互作用决定疲劳硬化过程的改性316L不锈钢,在300至403 K之间进行了高周疲劳试验。原位辐照试验和原位热脉冲试验表明,位错重排是由于热脉冲会导致持久滑带(PSB)的面密度增加,从而延长疲劳寿命Nnd引入了位错运动,辐照引起的晶格缺陷或疲劳引起的析出物的障碍,从而导致降低PSB的面密度,从而缩短Nf。

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