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摘要:
The effect of short-time aging in the temperature range between 400 and 1000 ℃ on the pitting corrosion behavior and mechanical property of a novel lean duplex stainless steel (LDSS) 2002 was investigated through the potentiostatic critical pitting temperature (CPT) tests and the Charpy impact tests.Both the pitting corrosion resistance and the toughness of aged specimens degraded due to the precipitation of detrimental secondary phases and the most significant reduction of CPT and impact energy emerged at 650 ℃ concurrently.The CPT of LDSS 2002 specimen aged at 650 ℃ decreased by 28 ℃,and the impact energy dropped from 69 to 29 J/cm2 compared with the solution-annealed sample.Transmission electron microscopy characterization showed that the main precipitates in LDSS 2002 were Cr2N and M23C6 along the ferriteaustenite grain boundaries.
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篇名 Effect of Short-Time Aging on the Pitting Corrosion Behavior of a Novel Lean Duplex Stainless Steel 2002
来源期刊 金属学报(英文版) 学科
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年,卷(期) 2019,(6) 所属期刊栏目
研究方向 页码范围 755-763
页数 9页 分类号
字数 语种 英文
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金属学报(英文版)
月刊
1006-7191
21-1361/TG
16开
沈阳文化路72号
1988
eng
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2302
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1
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