金属学报  2007, Vol. 43 Issue (12): 1233-1238

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高氮奥氏体钢低温断面的晶体学分析

陈汝淑;刘德义;刘世程;刘世永

大连交通大学

CRYSTALLOGRAPHIC ANALYSIS OF THE FRACTURE FACETS IN LOW TEMPERATURE BRITTLE FRACTURE OF A HIGH NITROGEN BEARING AUSTENITIC STEEL

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大连交通大学

陈汝淑; 刘德义; 刘世程; 刘世永 . 高氮奥氏体钢低温断面的晶体学分析[J]. 金属学报, 2007, 43(12): 1233-1238 .
, , , . CRYSTALLOGRAPHIC ANALYSIS OF THE FRACTURE FACETS IN LOW TEMPERATURE BRITTLE FRACTURE OF A HIGH NITROGEN BEARING AUSTENITIC STEEL[J]. Acta Metall Sin, 2007, 43(12): 1233-1238 .

摘要 参考文献 相关文章 Metrics 全文: PDF(2004 KB)   摘要: 用扫描电镜对18Cr-18Mn-0.7N高氮奥氏体钢的组织及低温脆断断面的晶体学特征进行了分析. 结果表明: 低温脆断断口上有退火孪晶界断面、沿晶断面及穿晶断面3种断裂刻面. 退火孪晶界断面为一光滑、平坦的{111}面, 上有折线状台阶, 其它3组{111}面上的形变组织在退火孪晶界断面上形成3组交角为60°的直线状平行迹线; 沿晶断面为一光滑曲面, {111}面的形变组织在其上形成几组不同交角的曲线状平行迹线; 穿晶断面粗糙不平,显示平行于{111}面的台阶、河流花样或棱状花样, 它们是不同{111}面上的裂纹在扩展中合并形成的. 关键词 ： 高氮奥氏体钢,  低温脆断,  断裂刻面     Abstract：Microstructures and crystallographic features in low temperature brittle fracture of 18Cr-18Mn-0.7N high nitrogen bearing austenitic steel were investigated by means of scanning electronic microscopy. The results showed that there are three kinds of fracture facets on the fracture surface: annealing twin boundary fracture facet, intergranular fracture facet and transgranular fracture facet. Annealing twin boundary facture facet is one of planar and smooth {111} planes, with bent steps on it, and the planar deformations proceeding on the other three sets of {111} planes form a pattern of three sets of straight-lines intersected at 60º on the annealing twin boundary facet. Intergranular facture facet is a kind of smoothly curved facet on which the planar deformations proceeding on {111} planes form a pattern of several sets of curved parallel lines that intersect each other at different angles. Transgranular facture facet is rough and uneven, with steps parallel to {111} plane and river patterns or edge patterns on it, which is the consequence of coalescence of cracks propagating on different {111} planes. Key words： high nitrogen bearing austenitic steel    brittle fracture at low temperature    three kinds of fracture f 收稿日期: 2007-02-01      ZTFLH:  TG146.1   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 陈汝淑 刘德义 刘世程 刘世永 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y2007/V43/I12/1233 [1]Cui D W,Qu X H,Li K.Mater Rev,2005;19(12):64 (崔大伟，曲选辉，李科．材料导报，2005；19(12)：64) [2]Tsuchiyama T,Ito H,Kataoka K.Metall Mater Trans, 2003;34A:1626 [3]Tobler R L,Leyn D.Metall Thins,1988;19A:1626 [4]Tomota Y,Endo S.Iron Steel lnst Jpn Int,1990;30:656 [5]Tomota Y,Xia Y,Inoue K.Acta Mater,1998;46:1577 [6]Chen K M,Dai Q X.J Iron Steel Res,1998;10(1):38 (陈康敏，戴起勋．钢铁研究学报，1998；10(1)：38) [7]Wang A D,Dai Q X,Cheng X N.J Jiangsu Univ Sci Technol(Nat Sci),2000;21(5):59 (王安东，戴起勋，程晓农．江苏理工大学学报(自然版)，2000；21(5)：59) [8]Liu S C,Hashida T,Takahashi H,Kuwano H,Hamaguchi Y.Metall Mater Trans,1998;29A:791 [9]Liu S C,Liu D Y,Dai Y K.Acta Metall Sin,2002;38: 1042 (刘世程，刘德义，戴雅康．金属学报，2002；38：1042) [10]Liu S Y,Liu S C,Liu D Y.J Mater Sci,2004;39:28418 [11]Liu S C,Liu D Y,Chen R S,Dai Y K.Trans Mater Heat Treat,2005;26(4):33 (刘世程，刘德义，陈汝淑，戴雅康．材料热处理学报，2005；26(4)：33) [12]Liao Q C,Sun F Y,Lan F L.Acta Metall Sin,1979;15(1): 77 (廖乾初，孙福玉，蓝芬兰．金属学报，1979；15(1)：77) [1] 刘世程; 刘德义; 戴雅康 . 高氮奥氏体钢低温断裂途径与断口形貌[J]. 金属学报, 2002, 38(10): 1042-1046 . [2] 黄正;姚枚. 低碳钢冷脆特征温度的研究[J]. 金属学报, 1990, 26(2): 31-36. Viewed Full text Abstract Cited   Shared      Discussed