Purpose

The purpose of this paper is to determine the failure reasons and failure mechanism of the commercially pure titanium air conditioning condenser.

Design/methodology/approach

In this paper, chemical analysis, metallographic observation, visual examination and scanning electron microscope examination, corrosion products analysis and working conditions analysis were adopted for determining the reasons for the failure of the condenser.

Findings

The results indicated that TA2 titanium pipe perforation failure is caused by the synergistic effect of crevice corrosion and deposit corrosion. The corrosion processes can be divided into three steps.

Originality/value

This research is an originality study on the failure case of a commercially pure titanium air conditioning condenser. This study makes up for the shortage of titanium alloy failure cases and also gives the result of the failure reason and failure mechanism for titanium, which has an engineering significance.

中文翻译：

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某空调冷凝器商用纯钛管失效分析

目的

本文旨在确定商用纯钛空调冷凝器的故障原因和故障机理。

设计/方法/方法

本文采用化学分析、金相观察、外观检查和扫描电镜检查、腐蚀产物分析和工作条件分​​析等方法来确定冷凝器失效的原因。

发现

结果表明，TA2钛管穿孔失效是由缝隙腐蚀和沉积腐蚀的协同作用引起的。腐蚀过程可分为三个步骤。

原创性/价值

本研究是对商用纯钛空调冷凝器故障案例的独创性研究。本研究弥补了钛合金失效案例的不足，也给出了钛合金失效原因和失效机理的结果，具有工程意义。