Garcia et al. produced W-Cr-Ti ternary alloys—WCr12Ti2.5 (wt%) alloys by MA and hot isostatic pressing (HIP) techniques and investigated the oxidation behavior of the alloy. The results showed that the Δ m/S of the WCr₁₂Ti_2.5 alloy was 1.25 × 10^-2 to 4 × 10^-2 times higher than that of the W-Cr alloy during the first 15 h of oxidation at 800 °C. In addition, the former is 2 × 10^-2 to 5 × 10^-2 times higher than the latter for the first 5 h of oxidation at 1000 °C. With increasing oxidation time, the oxide layer of the WCr₁₂Ti_2.5 alloy becomes thicker and its porosity gradually increases. In addition, the oxidized alloy has a similar cross-sectional structure, consisting of black, dark gray and light gray phases from inside to outside, respectively.

The W-Si ternary alloys own a longer oxidation life than W-Si binary alloys. The oxidation behavior of different ternary alloys is significantly lower compared to those of pure W and WSi13 alloys. In the temperature range of 600-1000°C, the oxidation rate of WSi₁₃Zr₁₃ alloy is only 0.16-0.27 times that of WSi₁₃ alloy. the oxidation rate of W-Si-Cr alloy is lower than that of WSi₉Y₁₃ alloy, while the oxidation rates of WSi₈Cr₁₂ and WSi₁₂Cr₇ alloys at 1000°C are only 0.25 and 0.023 times that of WSi₉Y₁₃ alloy, respectively. 0.25 and 0.023 times, respectively.

Cr is a traditional antioxidant beneficial element that is widely used in the oxidation protection process of metals. In addition, it has the same body-centered cubic structure as the tungsten element. Therefore, the oxidation behavior of W-Cr binary alloys has been studied extensively by related scholars. Telu et al. prepared W_0.7Cr_0.3, W_0.5Cr_0.5 and W_0.4Cr_0.6 alloys by mechanical alloying (MA) and observed that the two phases (Wss, Crss) have significantly different brightness.

W-Si binary alloys are mainly composed of Si and W-Si compounds. During oxidation behavior of W-Si alloys, the surface of the alloy is readily oxidized, producing a dense and continuous protective film of SiO₂. It will act as a diffusion barrier and delay further diffusion of oxygen into the alloy.