Contribution of Z-phase Precipitation to Recovery of Martensitic Structure in High Chromium Creep Resistant Steel

机译：Z相析出对高铬蠕变钢中马氏体组织恢复的贡献

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The precipitation site, main metallic composition and number density of Z phase have been investigated in T91 in order to clarify the influence of Z phase formation on recovery of martensitic structure and creep strength degradation. The Z phase particles were mainly present around prior austenite grain boundaries and/or packet boundaries in the steels crept at 550℃ and 600℃. The Z phase particles were found in specimens crept at 550℃ to 650℃. There was no indication of Z phase formation up to about 62475.0 h at 500℃ and 14106.5 h at 700℃. The Nb content of Z phase observed at 550℃ was lower than that at 600℃. The number density of Z phase measured at 550℃ was lower that that at 600℃, indicating that the preferential recovery of martensitic lath structure around prior austenite grain boundary is not remarkable at 550℃ in contrast with 600℃.

机译：在T91中研究了Z相的析出部位，主要金属成分和数量密度，以阐明Z相形成对马氏体组织恢复和蠕变强度退化的影响。在550℃和600℃下蠕变的钢中，Z相颗粒主要存在于先前的奥氏体晶界和/或包晶界附近。在550℃至650℃蠕变的样品中发现Z相颗粒。没有迹象表明在500℃下约62475.0 h和700℃下约14106.5 h的Z相形成。 550℃下Z相的Nb含量低于600℃下的Nb含量。 550℃下测得的Z相数密度低于600℃下的Z相数密度，表明在550℃下与600℃相比，在先奥氏体晶界周围的马氏体板条结构的优先恢复并不明显。

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来源
《International Conference on Proceeding amp; Manufacturing of Advanced Materials; 20060704-08; Vancouver(CA)》|2006年|P.3000-3005|共6页
会议地点 Vancouver(CA)
作者
Kota Sawada; Hideaki Kushima; Kazuhiro Kimura;
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作者单位

National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047, Japan;

National Institute for Materials Science (NIMS), 2-2-54 Nakameguro, Meguro-ku, Tokyo 153-0061, Japan;

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原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
long-term creep; 9Cr steel; Z-phase; elemental mapping;

机译：长期蠕变9Cr钢Z相元素映射;

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专利

1. On the Relationship between the Chromium Concentration, the Z-Phase Formation and the Creep Strength of Ferritic-Martensitic Steels [J] . Yu Hao, Xu Wei, van der Zwaag Sybrand Steel Research International . 2018,第10期

机译：在铁素体 - 马氏体钢的铬浓度，Z相形成与蠕变强度的关系
2. On the Relationship between the Chromium Concentration, the Z-Phase Formation and the Creep Strength of Ferritic-Martensitic Steels [J] . Yu Hao, Xu Wei, van der Zwaag Sybrand Steel Research International . 2018,第10期

机译：在铁素体 - 马氏体钢的铬浓度，Z相形成与蠕变强度的关系
3. Effect of creep temperature on Z-phase formation in heat-resistant 9% Cr-3% Co martensitic steel [J] . A. Fedoseeva, I. Nikitin, N. Dudova, Materials Science and Engineering . 2021,第Jana2期

机译：蠕变温度对耐热9％Cr-3％CO马氏体钢Z相形成的影响
4. Contribution of Z-phase Precipitation to Recovery of Martensitic Structure in High Chromium Creep Resistant Steel [C] . Kota Sawada, Hideaki Kushima, Kazuhiro Kimura International Conference on Processing amp; Manufacturing of Advanced Materials; 20060704-08; Vancouver(CA) . 2006

机译：Z相析出对高铬蠕变钢中马氏体组织恢复的贡献
5. Precipitation reactions in a martensitic precipitation-strengthened stainless steel and the effects of nickel and silicon on precipitation reactions and toughness. [D] . Hitit, Aytekin. 2002

机译：马氏体沉淀强化不锈钢中的沉淀反应以及镍和硅对沉淀反应和韧性的影响。
6. Precipitation behavior in a nitride-strengthened martensitic heat resistant steel during hot deformation [O] . Wenfeng Zhang, Qingyong Su, Mi Xu, 2015

机译：氮化强化马氏体耐热钢在热变形过程中的析出行为
7. On the Cobalt − Tungsten/Chromium Balance in Martensitic Creep Resistant Steels [O] . Hao Yu, Wei Xu, Sybrand van der Zwaag 2017

机译：在马氏体蠕变钢材中的钴 - 钨/铬平衡
8. Martensitic High Chromium Heat Resistant Steels [R] . Singleton, R. H. 1953

机译：马氏体高铬耐热钢

Contribution of Z-phase Precipitation to Recovery of Martensitic Structure in High Chromium Creep Resistant Steel

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