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<正> 铍青铜(QBe2-CY)[Cu-1.86Be-0.24Ni-0.11Fe)经过硬态分级时效处理(200℃×1h,320℃×2h二次时效),其强韧性配合较好,σ_b=1365MN/m~2、Hv=415,δ=2.5%,现已广泛应用于电子工业等弹力元件中。采用高压开关中弹簧触片制成微型拉伸试样(20×2×0.2mm),经抛光腐蚀晶粒内仍有滑移线存在,晶界上有少量γ相析出,该处理是过饱和固溶体α相的共格脱溶过程。将试样装在TH拉伸台上,再送入JSM-35CF扫瞄电镜中利用手动加载方式进行原位观察。
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电子显微学报
ISSN: 1000-6281
CN: 11-2295/TN
Year: 1993
Issue: 02
Page: 132
Cited Count:
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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