合金钢强韧化热处理组织结构高通量高分辨率三维重建  

High-throughput, high-resolution 3D reconstruction of alloy steel microstructure after strengthening-toughening heat treatment

作　　者：周祝兵 闫扶摇 张雁祥 赵军 徐跃明 闫牧夫 ZHOU Zhu-bing;YAN Fu-yao;ZHANG Yan-xiang;ZHAO Jun;XU Yue-ming;YAN Mu-fu(National Key Laboratory for Precision Hot Processing of Metals,School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China;Jiangsu Fasten Hopesun Group Co Ltd,Jiangsu 214445,China;Beijing Research Institute of Mechanical&Electrical Technology Ltd,Beijing 100083,China)

机构地区：[1]哈尔滨工业大学材料科学与工程学院金属精密热加工国家级重点实验室,黑龙江哈尔滨150001 [2]江苏法尔胜缆索有限公司,江苏江阴214445 [3]北京机电研究所有限公司,北京100083

出　　处：《材料热处理学报》2020年第10期170-174,共5页Transactions of Materials and Heat Treatment

基　　金：科技部重点研发项目课题(2018YFB2001901)。

摘　　要：应用距离相关函数法,重构了桥梁锚具用40Cr合金钢淬火层和航空高速重载传动件用18Ni合金钢低温稀土共渗层的三维组织结构。结果表明:该方法分辨率取决于组织结构的二维图像,因此可以达到超高分辨率。另外,提出的多级重构算法突破了传统算法重构尺寸极限(150~3体元),可在短时内重建200~3体元尺寸,因此具有高通量特性。该方法为合金钢组织结构的表征提供了一种简单易用的、介于二维体视学与三维成像技术之间的有效途径。Based on distance correlation functions, the three-dimensional(3 D) microstructure from a single 2 D micrograph of the cable socket used 40 Cr steel after quenching and the aerospace high-speed, heavy-load transmission part used 18 Ni steel after low-temperature rare-earth heat treatment was reconstructed. The results show that the resolution of this method depends on the two-dimensional image of the structure, so it can achieve ultra-high resolution. In addition, the proposed multi-stage reconstruction algorithm exceeds the limit of domain size(150~3) of the traditional algorithm, and can accomplish 3 D reconstruction with 200~3 voxels in an acceptable duration, so it has high throughput characteristics. This method provides a simple and easy-to-use way to characterize the microstructure of alloy steel, which is between two-dimensional stereology and three-dimensional imaging.

关 键 词：合金钢 三维组织结构 强韧化热处理 

分 类 号：TG142.3[一般工业技术—材料科学与工程]