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Experimental determination of TRIP-parameter K for mild- and high-strength low-alloy steels and a super martensitic filler material

机译:低强度和高强度低合金钢和高马氏体填充材料的TRIP参数K的实验测定

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摘要

A combined experimental numerical approach is applied to determine the transformation induced plasticity (TRIP)-parameter K for different strength low-alloy steels of grade S355J2+N and S960QL as well as the super martensitic filler CN13-4-IG containing 13 wt% chromium and 4 wt% nickel. The thermo-physical analyses were conducted using a Gleeble® 3500 facility. The thermal histories of the specimens to be tested were extracted from corresponding simulations of a real gas metal arc weldment. In contrast to common TRIP-experiments which are based on complex specimens a simple flat specimen was utilized together with an engineering evaluation method. The evaluation method was validated with literature values for the TRIP-parameter. It could be shown that the proposed approach enables a correct description of the TRIP behavior.
机译:采用组合实验数值方法来确定S355J2 + N和S960QL级不同强度低合金钢以及含13wt%铬的超级马氏体填料CN13-4-IG的相变诱导塑性(TRIP)参数K和4wt%的镍。热物理分析是使用Gleeble ® 3500设备进行的。从真实的气体金属电弧焊件的相应模拟中提取了待测样品的热历史。与基于复杂样本的常见TRIP实验相反,简单的平面样本与工程评估方法一起使用。评估方法已通过TRIP参数的文献值进行了验证。可以证明,所提出的方法使得能够正确描述TRIP行为。

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