Stainless steels are known for their high corrosion resistance and strength to be used for load-bearing components. While the fatigue behavior of common stainless steel grades such as 304 and 316 are thoroughly investigated, research on multiaxial fatigue of AISI 410 is lacking. In-phase and 90° out-of-phase multiaxial fatigue loading tests were performed on AISI 410 specimens under strain-controlled conditions. Like other stainless steel grades, additional stress hardening of the alloy was observed under non-proportional loading. The evolution of equivalent stress amplitude with cycling shows that the material exhibits cyclic stress softening. In general, the fatigue damage model of Fatemi-Socie was found to overestimate the multiaxial fatigue lives of SS 410, particularly, for $90°$ out-of-phase loading path. Itoh's non-proportional strain range was also found to overestimate multiaxial fatigue lives, however, it was found to provider better estimate for the 90° out-of-phase loading path. This observation suggests that Itoh's non-proportional factor $f_{NF}$, plays an important role in the modeling of out-of-phase multiaxial fatigue behavior of SS 410 stainless steel.

不锈钢以其高耐腐蚀性和强度而闻名，可用于承重部件。尽管对诸如304和316等常见不锈钢等级的疲劳行为进行了深入研究，但仍缺乏AISI 410的多轴疲劳研究。在AISI 410试样上，在应变受控条件下进行了同相和90°异相多轴疲劳载荷测试。像其他不锈钢牌号一样，在非比例载荷下也观察到了合金的附加应力硬化。等效应力幅值随循环的演变表明，材料表现出循环应力软化。通常，发现Fatemi-Socie的疲劳损伤模型高估了SS 410的多轴疲劳寿命，特别是对于$90°$异相加载路径。还发现伊藤的非比例应变范围高估了多轴疲劳寿命，但是，发现它可以更好地估计90°异相加载路径。这一发现表明伊藤的非比例因素$F_{ñF}$，在SS 410不锈钢异相多轴疲劳行为建模中起重要作用。