通过综合分析指出对流管发生失效的原因是奥氏体不锈钢长期在高温下工作引起的热脆化开裂。
Through the comprehensive analysis, the result shows that crack failure reason is embrittlement of the austenite stainless steel at high temperature.
再热裂纹与再热脆化的机理相同，两者同时发生，降低应力防止再热裂纹并不能防止再热脆化。
Mechanism of reheat embrittlement and reheat crack is the same. Reheat embrittlement cannot be avoided by reducing stress.
阐述了优质钢及合金钢连铸坯热装时产生热脆的机理及解决连铸坯热送热装时钢的热脆的途径。
The mechanism of hot-shortness of high-quality steel and alloy steel continuous casting billet in hot charging and the ways to resolve it are discussed.
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