评定结构材料临界脆性温度的新方法简介

Brief Introduction of New Methods for Structure Materials Critical Brittle Temperature Evaluation

在重要零部件（特别是核容器）的产品质量控制和防脆断安全分析中，经常使用以不同试验方法所取得的材料脆性断裂抗力参量：如冲击转变温度Ｔｒ和ＦＡＴＴ，无延性转变温度ＴＮＤＴ以及参考转变温度ＲＴＮＤＴ，近年来，原苏联学者在ＣＮＩＴＴ－ＭＡＳＣＨ开发了一种计算材料临界脆性温度（ＣＢＴ）的新方法。本文特就此作一简介。

The material fracture resistance parameters:as impact transition temperature Tr and FATT,nil-duclity transition temperature TNDT as well as reference transition temperation RTNDT are obtained by different test methods during quatitative control and safe analysis to avoid brittle fracture for important spares and component.In the past few years,the new critecal brittle temperature(CBT)evaluation procedure has been developed by scholars of USSR in CNITT-MASCH.