| EFFECT OF AGING ON HYDROGEN EMBRITTLEMENT SUSCEPTIBILITY OF STEEL Cr21Ni6Mn9N |
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| 作者姓名： | LIU Jianchao GUO Yunyi XING Zhongshu SHI Changxu Institute of Metal Research Academia Sinica Shenyang China LIANG Wubiao No. Automobile Factory Shiyan Hubei China Professor Institute of Metal Research Academia Sinica Shenyang China |
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| 作者单位： | LIU Jianchao GUO Yunyi XING Zhongshu SHI Changxu Institute of Metal Research，Academia Sinica Shenyang，China LIANG Wubiao No.2 Automobile Factory，Shiyan，Hubei，China Professor，Institute of Metal Research，Academia Sinica，Shenyang，110015，China |
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| 摘 要： | Effects of 650℃ aging for 1—1000 h on structure and hydrogen embrittlement susceptibility(HES)of steel Cr21Ni6Mn9N have been investigated.The results show that M_(23)C_6 typecarbide precipitates at grain boundaries and Cr-depletive region appears beside them duringaging.The precipitates grow and connect each other as the aging time prolongs.Meanwhile,the degree of Cr-depletion aggravates first and then recovers gradually while the aging time isvery long,i.e.,1000 h.The HES of the steel increases with increasing aging time but does notreduce with the recovery of Cr content at the Cr-depletive region.That implies that the ex-isting of carbides at grain boundaries might be the main reason which promotes the HES ofsteel during aging.
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| 收稿时间： | 1989-06-25 |
| 修稿时间： | 1989-06-25 |
EFFECT OF AGING ON HYDROGEN EMBRITTLEMENT SUSCEPTIBILITY OF STEEL Cr21Ni6Mn9N |
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| LIU Jianchao GUO Yunyi XING Zhongshu SHI Changxu Institute of Metal Research,Academia Sinica Shenyang,China LIANG Wubiao No. Automobile Factory,Shiyan,Hubei,China Professor,Institute of Metal Research,Academia Sinica,Shenyang,,China.EFFECT OF AGING ON HYDROGEN EMBRITTLEMENT SUSCEPTIBILITY OF STEEL Cr21Ni6Mn9N[J].Acta Metallurgica Sinica(English Letters),1989,2(3):168-173. |
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| Authors: | LIU Jianchao GUO Yunyi XING Zhongshu SHI Changxu Institute of Metal Research Academia Sinica Shenyang China LIANG Wubiao No Automobile Factory Shiyan Hubei China Professor |
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| Affiliation: | LIU Jianchao GUO Yunyi XING Zhongshu SHI Changxu Institute of Metal Research,Academia Sinica Shenyang,China LIANG Wubiao No. Automobile Factory,Shiyan,Hubei,China Professor,Institute of Metal Research,Academia Sinica,Shenyang,,China |
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| Abstract: | Effects of 650℃ aging for 1—1000 h on structure and hydrogen embrittlement susceptibility (HES)of steel Cr21Ni6Mn9N have been investigated.The results show that M_(23)C_6 type carbide precipitates at grain boundaries and Cr-depletive region appears beside them during aging.The precipitates grow and connect each other as the aging time prolongs.Meanwhile, the degree of Cr-depletion aggravates first and then recovers gradually while the aging time is very long,i.e.,1000 h.The HES of the steel increases with increasing aging time but does not reduce with the recovery of Cr content at the Cr-depletive region.That implies that the ex- isting of carbides at grain boundaries might be the main reason which promotes the HES of steel during aging. |
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| Keywords: | aging hydrogen embrittlement M_(23)C_6 steel Cr21Ni6Mn9N |
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