Influence of Trace Oxygen on the Mechanical Properties of High Pure Silver during Natural Aging
Two kinds of high pure silver materials with 5.3 ppm oxygen and 32.7 ppm oxygen were prepared by various melting processes, both samples were subjected to accumulative rolling with 95％ thickness reduction.Their mechanical properties were tested during long natural aging. Results showed that the Ag sheet with 5.3 ppm oxygen is at full annealed state when natural aging 58 days or kept at 150℃ for 30 minutes, and the Ag sheet with 32.7 ppm oxygen is a little of recovery when natural aging a year. It is suggested that appropriate oxygen interstitial solute in Ag solid solution and a few of Ag2O particles at Ag grain boundaries impede the recovery and recrystallization of Ag sheets.
silver trace oxygen natural aging mechanical property
XIE Hongchao ZHUANG Dianxiang LI Ji CHEN Liangwei YANG Anheng LUO Yanbo ZHU Yong
State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Sino- Shool of Materials Science and Technology, Kunming University of Science and Techology, Kunming 6500
国际会议
5th International Conference Platinium Metals(第五届国际贵金属会议)
昆明
英文
154-158
2012-10-15（万方平台首次上网日期，不代表论文的发表时间）