Effects of aging time and temperature of Fe-1wt.%Cu on magnetic Barkhausen noise and FORC
Effects of aging time and temperature of Fe-1wt.%Cu on magnetic Barkhausen noise and FORC
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效果%20of%20时效%20时间%20和%20温度%20of%20Fe-1wt.%Cu%20on%20磁性%20巴克豪森%20噪声%20和%20FORC
DOI：
10.1063/1.4944767
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
J. McCloy
中科院分区：
文献类型：
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作者：
Muad Saleh;Yue Cao;David Edwards;P. Ramuhalli;B. Johnson;J. McCloy
对在 700°C 等温时效 0.5 – 25 小时的 Fe-1wt.%Cu (Fe-Cu) 样品进行磁巴克豪森噪声 (MBN)、磁滞测量、一阶反转曲线 (FORC)、维氏显微硬度和透射电子显微镜 (TEM) 分析，以获得具有不同尺寸的 Cu 析出物和位错结构的样品。 Fe-Cu用于模拟含铜核反应堆材料（例如冷却系统管道和压力容器材料）中的热和辐照引起的缺陷。随着时效时间的推移，样品系列的硬度和矫顽力呈现出最初的增加，随后下降，这是通过 TEM 测量观察到的 Cu 沉淀物的形成和生长来解释的。此外，随着年龄的增长，MBN 包络线的幅度不断减小，并出现第二个峰值。此外，FORC 图显示了多个峰，其强度和位置随老化时间的不同而变化。 FORC 图的变化归因于...的综合变化
Magnetic Barkhausen noise (MBN), hysteresis measurements, first order reversal curves (FORC), Vickers microhardness, and Transmission Electron Microscopy (TEM) analyses were performed on Fe-1wt.%Cu (Fe-Cu) samples isothermally aged at 700°C for 0.5 – 25 hours to obtain samples with different sized Cu precipitates and dislocation structures. Fe-Cu is used to simulate the thermal and irradiation-induced defects in copper-containing nuclear reactor materials such as cooling system pipes and pressure vessel materials. The sample series showed an initial increase followed by a decrease in hardness and coercivity with aging time, which is explained by Cu precipitates formation and growth as observed by TEM measurements. Further, the MBN envelope showed a continuous decrease in its magnitude and the appearance of a second peak with aging. Also, FORC diagrams showed multiple peaks whose intensity and location changed for different aging time. The changes in FORC diagrams are attributed to combined changes of the ...
DOI：
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发表时间：
2009
期刊：
影响因子：
--
作者：
A.Takahashi;M.Kawanabe;K.Kurata;K.Nakashima;N.Soneda
通讯作者：
N.Soneda