中碳V-Ti-N+微合金钢奥氏体晶界显示技术.pdfVIP

中国体视学与图像分析 2003 年3 月 第8 卷 第1 期 CHINESE JOURNAL OF STEREOLOGY AND IMAGE ANALYSIS Vol.8 No.1 Mar.2003 59 ·经验与交流· 文章编号：1007-1482(2003)01-0059-06 中碳V-Ti-N微合金钢奥氏体晶界显示技术 1,2 1 1 1 1 刘胜新 ，刘国权 ，王辅忠 ，钟云龙 ，钟声 （1.北京科技大学，北京 100083 ； 2.河北科技大学，石家庄 050054 ） 黄建凯,王 成，施 琪 (无锡西姆莱斯钢管有限公司, 江苏无锡 214026) 【摘要】用两种不同试剂对不同状态的热轧非调质无缝油井管用中碳微合金钢的奥氏体晶界进行 了热化学浸蚀法显示,并对影响奥氏体晶界显示效果的因素进行分析。结果表明：利用控温控时水 浴锅采用传统饱和苦味酸滴加微量氢氟酸和二甲苯的试剂可清晰显示不同状态下的奥氏体晶界。 【关键词】热化学浸蚀；微合金钢；奥氏体晶粒 REVEALING TECHNIQUES OF AUSTENITE GRAIN BOUNDARY IN MEDIUM-CARBON V-TI-N MICROALLOYED STEEL Liu Shen-xin1,2 ，Liu Guo-quan1 ，Wang Fu-zhong1 Zhong Yun-long1 Zhong Sheng1 (1.University of Science and Technology Beijing, Beijing100083, China; 2.Hebei University of Science and Technology, Shijiazhuang 050054, China) Huang Jian-kai ，Wang Cheng ，Shi Qi (Wuxi Seamless Steel Tube Company, Ltd., Wuxi 214026, China) 【ABSTRACT 】Two different thermal chemical etching techniques have been used to reveal the prior-austenite grain boundaries of medium-carbon non-quenched/tempered steels under different heat-treated or thermo-mechanical conditions. The results show that the proper chemical ingredient is the key factor affecting the quality of visual grain boundary. With the aid of a water-heater controllable in both temperature and time, the chemical etching method adding a bit hydrofluoric acid and xylene in traditional picric acid saturated solution, can clearly reveal the austenite grain boundary of the steels under different heat-treated or thermo-mechanical conditions. 【KEYWORDS 】Thermal ch