双级时效对7050铝合金力学性能及氢脆敏感性的影响
任建平1,宋仁国2(
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Effect of Two-stage Ageing on Mechanical Properties and Sensitivity to Hydrogen Embrittlement of 7050 Aluminum Alloy
REN Jianping1,SONG Renguo2()
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图7. 7050铝合金时效状态下的显微组织
Fig.7. Intragranular and grain boundary structures of 7050 aluminum alloy after ageing under the cond-itions of 743 K/70 min+393 K/8 h+423 K/different time: (a) 17 h (first peak); (b) 33 h (vale); (c) 45 h (second peak); (d) 57 h (after second peak)
