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试验在Ｇｌｅｂｌｅ－１５００模拟试验机上以加氮和不加氮１８－８型不锈钢焊缝金属为对象，进行了热塑性及其相应高温组织形态的研究。研究表明用热模拟技术对凝固组织重新加热到高温时，以激冷方式“固定”高温组织基本形态，以便室温下加以分析的方法是可行的。用该方法观察到１８－８型焊缝由于氮的加入，使焊缝金属凝固方式从先铁素体模型转变成先奥氏体模型，从组织结构上说明了加氮后焊缝热塑性（抗热裂性）下降的内在原因。
Test On the Gleble-1500 simulator, nitrogen and nitrogen-free 18-8 stainless steel weld metal was used as the object to study the thermoplasticity and its corresponding high-temperature microstructure. Studies have shown that when using thermal simulation to reheat the solidified tissue to high temperatures, it is feasible to “fix” the fundamental morphology of the high temperature tissue by chilling to allow for analysis at room temperature. Using this method, it was observed that the 18-8 type weld changed into a pre-austenite model due to the addition of nitrogen and the solidification mode of the weld metal changed from the pre-ferrite model to the pre-austenite model. Thermal cracking) the decline of the underlying causes.