钢材淬透性磁电测试方法的研究

Study on Magynetoelectric Measurement Method of Steel Hardenability

提出了一种新型的测量钢材淬透性的方法．它是利用钢材淬火过程中．组织变化（Ａ－Ｍ）．以及各种组织（Ａ．Ｍ．Ｐ）对电磁感应特性不同．而测出工件截面组织变化模拟曲线．并建立相应的数学模型，据此计算出钢材的淬透性．此方法与常规淬透性测量方法相比，具有可测量各种钢材在不同介质中的淬透性、不须破损工件、操作方便、迅速等优点，在淬透性测量方面有突破性贡献．

A new method of measuring sted hardenability is introduced. It is know that variation inthe microstructure of steel products (A→M)occurs during gthe course of their hardening, andmicrortructurcs (A. M. P) differ in their charactcristics of electrompnetic induction. On the basis ofthis fact,the analogue curves arc detcctedcfor the microstructure variation on the cross-section of theworkpieces, and the corresponding mathcmaaitcmodcl is studied and established,so the steelhardcnability can be calculated. In comparison with the usual hardenability measurement method, themain advantage of the present method is without workpiece broken. In addition, it is adaptable tomeasure the hardenability for various stool products in different hardening media, and the operation isconvenient and rapid.Overall, an unusual way in measuring sted hardenabillty is initiated.