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6. 7050铝合金充氢后断口形貌特征
Fig.6. Fracture surfaces of 7050 aluminum alloy after ageing under the conditions of 743 K/70 min+393 K/8 h+423 K/different time and then hydrogen charging for 3 h; (a) 17 h (first peak), (b) 33 h (vale), (c) 45 h (second peak), (d) 57 h (after second peak)
