金属学报  1982, Vol. 18 Issue (1): 95-137

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00Cr18Ni5Mo3Si2双相不锈钢组织稳定性及其对脆性影响的研究

吴玖;陈荣仙;李雪缘;陆金生;季绍华;霍淑云;李殿坤

北京冶金工业部钢铁研究总院;北京冶金工业部钢铁研究总院;北京冶金工业部钢铁研究总院;北京冶金工业部钢铁研究总院;北京冶金工业部钢铁研究总院;北京冶金工业部钢铁研究总院;北京冶金工业部钢铁研究总院

MICROSTRUCTURAL STABILITY AND ITS INFLUENCE ON EMBRITTLEMENT OF FERRITIC-AUSTENITIC STAINLESS STEEL 00Cr18NiSMo3Si2

Wu Jiu; Chen Rongxian; Li Xueyuan; Lu Jinsheng; Ji Shaohua; Huo Shuyun; Li Diankun (Central Iron and Steel Researeh Institute; Ministry of Metallurgical Industry; Beijing)

吴玖;陈荣仙;李雪缘;陆金生;季绍华;霍淑云;李殿坤. 00Cr18Ni5Mo3Si2双相不锈钢组织稳定性及其对脆性影响的研究[J]. 金属学报, 1982, 18(1): 95-137.
, , , , , , . MICROSTRUCTURAL STABILITY AND ITS INFLUENCE ON EMBRITTLEMENT OF FERRITIC-AUSTENITIC STAINLESS STEEL 00Cr18NiSMo3Si2[J]. Acta Metall Sin, 1982, 18(1): 95-137.

摘要 参考文献 相关文章 Metrics 全文: PDF(4037 KB)   摘要: 本文就铁素体—奥氏体型双相不锈钢00Cr18Ni5Mo3Si2组织稳定性及其对脆性的影响进行了探讨。980℃固溶处理及在450—900℃温度区间时效后产生α→γ′+X(σ)及α→α′+脱溶产物两种类型的组织转变。在450—750℃时效沿晶界发现有一种片状的Fe_3Cr_3Mo_2Si_2金属间相,在铁素体晶内有一种Fe_(2.4)Cr_(1.3)=MoSi拓扑密排相(R相),而在750—900℃时效发现x相只是一个能转变为σ相的亚稳相。本文就α-铁素体等温转变动力学曲线进行了研究。前人研究结果认为本钢脆性是由σ相造成的,本文研究结果发现在550—650℃及800—900℃不同温度区间脆性断裂特征不同,在550—650℃区间沿晶脆性断裂主要是由于沿晶规则排列的片状Fe_3Cr_3Mo_2Si_2金属间相的析出造成的,而在800—900℃区间的准解理断裂则与α相分解为块状的σ相、x相有关。 Abstract：The influence of the microstructural stability on the embrittlement in ferriticaustenitic stainless steel, 00Crl8Ni5Mo3Si2, was investigated. After solution treated at 980℃ and subsequently aged between 450—900℃, the steel has undergone two types of transformations, namely α→γ'+χ(σ) and α→α'+precipitates of intermetallic phases. During aging in temperature range of 450—750℃, the lamellar intermetallic phases Fe_3Cr_3Mo_2Si_2 precipitates preferentially along grain boundaries and a topological close packed phase Fe_(2.4)Cr_(1.3)MoSi (R phase) appears in the ferrite grains, while in 750—900℃ the χ phase is merely a metastable one which changes easily to σ phase. A study was also made of the kinetic curve of isothermal decompcsition of α-ferrite. The results indicated that the fracture feature of the steel between 550—650℃ is quite different from that between 800—900℃. In the range of 550—650℃, the intergranular brittle fracture is caused substantially by the precipitation of the lamellari ntermetallic phase Fe_3Cr_3Mo_2Si_2 arranged regularly along grain boundaries, but in 800—900℃, thequasicleavage fracture is connected with the lumpy precipitates of σ and χ phases. 收稿日期: 1982-01-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 吴玖 陈荣仙 李雪缘 陆金生 季绍华 霍淑云 李殿坤 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1982/V18/I1/95 1 Carlen, J. C., Int. Corrosion Forum Devoted Exclusively to the Protection and Performance of Materials, March 1973, Anaheim, Calif., paper No 13, 13/1-13/15． 2 郭可信,金属学报,14(1978) ,73． 3 Birks, L. S.; Siomkajlo, J. M.; Koh, P. K., Trans. Metall. Soc. AIME, 218 (1960) , 806． 4 田村今男;石礒上勝行;牧正志;藤原正二,日本金属学会誌,40(1976) ,353． 5 中野惠司;金尾正雄;星野明彦,铁钢,62(1976) ,1219． 6 Gustaf, L.; Ljungberg, F., U. S. Pat.No 3337 331, 1967． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed