高温共焦激光扫描显微镜在钢铁原位组织观察中的应用
Application of High Temperature Confocal Laser Scanning Microscope in Observation of In-situ Structure of Steel
摘 要
简介了高温共焦激光扫描显微镜（CLSM）的基本结构和成像原理。针对其可进行高温下实时观察和记录的特点对YF45MnV非调质钢和12L14易切削钢进行了原位组织观察。结果表明：CLSM 可清晰记录YF45MnV非调质钢在不同温度下的奥氏体晶粒变化情况以及12L14易切削钢液相→高温铁素体→奥氏体的相变过程；确定了YF45MnV非调质钢的奥氏体晶粒粗化温度为1 220 ℃；12L14易切削钢凝固过程中，奥氏体形核于铁素体相的三叉晶界处，初始为薄片状，后沿铁素体相晶界呈胞状或拇指状发展并迅速长大。
实时观察
晶粒长大
高温相变
CLSM
real-time observation
grain growth
high temperature phase transition
Abstract
The basic configuration and imaging principle of high temperature confocal laser scanning microscopy (CLSM) were described. According to the characteristics of real-time observation and recording under high temperature, observation of in-situ structure of YF45MnV non-quenched and tempered steel and 12L14 free cutting steel was carried out. The results show that austenite grain changes of YF45MnV non-quenched and tempered steel at different temperatures and transition process from liquid phase→high temperature ferrite→austenite in 12L14 free cutting steel could be recorded clearly through CLSM. Austenite grain coarsening temperature of YF45MnV non-quenched and tempered steel was 1 220℃. In solidification process of 12L14 free cutting steel, austenite nucleated at the trigeminal grain boundary of ferrite phase, which initially was in sheet shape, and then developed rapidly in cellulation or thumb shape along the grain boundary of ferrite phase.
中图分类号 TG115.21+5.2 DOI 10.11973/lhjy-wl202001006
所属栏目 试验技术与方法
基金项目
收稿日期 2018/12/25
修改稿日期
网络出版日期
作者单位点击查看
备注温娟(1978-),女,高级工程师,主要从事金属材料微观结构、性能及热处理研究工作,wenjuan_506@163.com
引用该论文: WEN Juan,QI Qige,JU Xinhua,ZHANG Lixia,JIA Huiping. Application of High Temperature Confocal Laser Scanning Microscope in Observation of In-situ Structure of Steel[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2020, 56(1): 21～25
温娟,其其格,鞠新华,张莉霞,贾惠平. 高温共焦激光扫描显微镜在钢铁原位组织观察中的应用[J]. 理化检验－物理分册, 2020, 56(1): 21～25
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】YIN H B,SHIBATA H,EMI T,et al. “In-situ” observation of collision,agglomeration and cluster formation of alumina inclusion particles on steel melts. [J]. ISIJ International,1997,37(10):936-945.
【2】REID M,PHELAN D,DIPPENAAR R. Concentric solidification for high temperature laser scanning confocal microscopy[J]. ISIJ International,2004,44(3):565-572.
【3】HASEGAWA H,NAKAJIMA K,MIZOGUCHI S. Effects of MnS on the heterogeneous nucleation of Cu precipitates in Fe-10 and -5 mass% Cu alloys[J]. ISIJ International,2003,43(7):1021-1029.
【4】MCDONALD N J,SRIDHAR S. Peritectic reaction and solidification in iron-nickel alloys[J]. Metallurgical and Materials Transactions A,2003,34(9):1931-1940.
【5】周磊磊,周灿栋,林刚,等. 双相不锈钢高温组织相含量的测定[J]. 理化检验(物理分册),2006,42(11):554-557.
【6】梁高飞,王成全,方园. AISI 304不锈钢加热过程中高温δ相形核与生长的原位观察[J]. 金属学报,2006,42(8):805-809.
【7】苏德达. 65Mn钢奥氏体晶粒长大与孪晶的动态观察[J]. 金属制品,2002,28(6):55-59.
【8】苏德达. 钢的高温金相学[M]. 天津:天津大学出版社,2007.
【9】史远,黄胜永,安治国. 冷却速率对30CrNiMo8钢过冷奥氏体转变的影响[J]. 理化检验(物理分册),2017,53(11):782-785.
【10】万长杰,白瑞娟,申丽娟,等. 45钢原始奥氏体晶界的显示方法[J]. 理化检验(物理分册),2016,52(3):174-176.
【2】REID M,PHELAN D,DIPPENAAR R. Concentric solidification for high temperature laser scanning confocal microscopy[J]. ISIJ International,2004,44(3):565-572.
【3】HASEGAWA H,NAKAJIMA K,MIZOGUCHI S. Effects of MnS on the heterogeneous nucleation of Cu precipitates in Fe-10 and -5 mass% Cu alloys[J]. ISIJ International,2003,43(7):1021-1029.
【4】MCDONALD N J,SRIDHAR S. Peritectic reaction and solidification in iron-nickel alloys[J]. Metallurgical and Materials Transactions A,2003,34(9):1931-1940.
【5】周磊磊,周灿栋,林刚,等. 双相不锈钢高温组织相含量的测定[J]. 理化检验(物理分册),2006,42(11):554-557.
【6】梁高飞,王成全,方园. AISI 304不锈钢加热过程中高温δ相形核与生长的原位观察[J]. 金属学报,2006,42(8):805-809.
【7】苏德达. 65Mn钢奥氏体晶粒长大与孪晶的动态观察[J]. 金属制品,2002,28(6):55-59.
【8】苏德达. 钢的高温金相学[M]. 天津:天津大学出版社,2007.
【9】史远,黄胜永,安治国. 冷却速率对30CrNiMo8钢过冷奥氏体转变的影响[J]. 理化检验(物理分册),2017,53(11):782-785.
【10】万长杰,白瑞娟,申丽娟,等. 45钢原始奥氏体晶界的显示方法[J]. 理化检验(物理分册),2016,52(3):174-176.
相关信息
