理化检验-物理分册2011，Vol.47Issue(5)：327-328,332,3.
供热管道开裂原因分析
Analysis on Cracking Cause of Hot Supply Pipeline
杨晓洁 1袁兴栋 2马洪涛1
作者信息
- 1. 山东省产品质量监督检验研究院,济南250100
- 2. 山东建筑大学材料科学与工程学院,济南250101
- 折叠
摘要
Abstract
The cracking cause of hot supply pipeline was analyzed by means of macroscopic examination, chemical composition analysis, metallographic examination and so on. The results showed that lots of tertiary cementite precipitated along the ferrite grain boundary due to the improper heat treatment The reticular and line distribution of tertiary cementite resulted in the great reduce of the plasticity and ductility of the hot supply pipeline, and finally led to cracking on the hot supply pipeline. At last the measures were presented.关键词
供热管道/三次渗碳体/微裂纹/沿晶开裂Key words
hot supply pipeline/ tertiary cementite/ microcrack/ intergranular cracking分类
矿业与冶金引用本文复制引用
杨晓洁,袁兴栋,马洪涛..供热管道开裂原因分析[J].理化检验-物理分册,2011,47(5):327-328,332,3.
