The current work investigates the impression creep behavior of the die-cast MRI230D alloy. The impression creep experiments are carried out in the temperature range of 150–225 °C and stress range 225–325 MPa by impressing a cylindrical indenter on the surface of the specimen. The microstructure of MRI230D consists of α-Mg phase, (Mg,Al)2Ca (C36) phase, and a few Al-Mn-rich phases. All the creep plots exhibit a well-defined primary creep followed by secondary (steady state) creep. The tertiary stage is missing in all the plots owing to the compressive nature of the tests. XRD and microstructural observation of the as-cast and creep tested specimens confirm the superior creep resistance of the MRI230D alloy due to the presence of the thermally stable C36 phase along grain boundaries.
KulekciMK. Magnesium and its alloys applications in automotive industry. Int J Adv Manuf Technol2008; 39: 851–865.
2.
RashnoSNamiBMiresmaeiliSM. Impression creep behavior of a cast MRI153 magnesium alloy. Mater Des2014; 60: 289–294.
3.
HommaTNakawakiSKamadoS. Improvement in creep property of a cast Mg-6Al-3Ca alloy by Mn addition. Scr Mater2010; 63: 1173–1176.
4.
LaserTHartigCNürnbergMR, et al.The influence of calcium and cerium mischmetal on the microstructural evolution of Mg-3Al-1Zn during extrusion and resulting mechanical properties. Acta Mater2008; 56: 2791–2798.
5.
NamiBRazaviHMirdamadiS, et al.Effect of Ca and rare earth elements on impression creep properties of AZ91 magnesium alloy. Metall Mater Trans A2010; 41: 1973–1982.
6.
LiJCM. Impression creep and other localized tests. Mater Sci Eng A2002; 322: 23–42.
7.
YangFLiJCM. Impression test—A review. Mater Sci Eng R Rep2013; 74: 233–253.
8.
KimH-K. The correlation between the impression and double shear creep of AZ31 magnesium alloy. Mater Sci Eng A2012; 551: –6.
9.
MondalAKKesavanARRavi Kiran ReddyB, et al.Correlation of microstructure and creep behaviour of MRI230D Mg alloy developed by two different casting technologies. Mater Sci Eng A2015; 631: 45–51.
10.
SrinivasanAPillaiUTSPaiBC. Effects of elemental additions (Si and Sb) on the ageing behavior of AZ91 magnesium alloy. Mater Sci Eng A2010; 527: 6543–6550.
11.
KabirianFMahmudiR. Impression creep behavior of a cast AZ91 magnesium alloy. Metall Mater Trans A2009; 40: 116–127.
12.
ZhangYYangLGeC, et al.Influence of Ca and Sr addition on impression creep behavior of Mg-4Al-RE alloy. J Mater Eng Perform2019; 28: 394–403.
13.
NamiBMiresmaeiliSMJamshidiF, et al.Effect of Ca addition on microstructure and impression creep behavior of cast AZ61 magnesium alloy. Trans Nonferr Met Soc China2019; 29: 2056–2065.
14.
KermaniEBiniyazanFRezaeeB, et al.An investigation on the microstructure and impression creep behavior of the magnesium alloys. J Mod Process Manuf Prod2020; 9: 43–49.
15.
RajeswariREbenezerDKoteswara RaoSR, et al.High temperature impression creep behavior and microstructures of wrought ZM21 magnesium alloy. Proc Inst Mech Eng Part L J Mater Des Appl2022; 236: 524–532.
16.
RaoSKEbenezerD. Impression creep behavior of an Mg–Zn–RE alloy at elevated temperatures. Metall Mater Trans A2022; 53: 823–836.
17.
MahmudiRAllamiAGeranmayehAR. Impression creep of a cast Ag-doped AZ91 magnesium alloy. Mater Sci Eng A2025; 921: 147599.
18.
EbrahimiRGherekhlou NareSZirakiS, et al.Investigating the impression creep behavior of AZ31B alloy in a wide range of temperature and stress. Mech Time-Dependent Mater2025; 29: 2025.
19.
LiangSMChenRSBlandinJJ, et al.Thermal analysis and solidification pathways of Mg – Al – Ca system alloys. Mater Sci Eng A2008; 480: 365–372.
20.
OzturkKZhongYLiuZ, et al.Creep resistant Mg-Al-Ca alloys: computational thermodynamics and experimental investigation. JOM2003; 55: 40–44.
21.
TeradaYSotaRIshimatsuN, et al.A thousandfold creep strengthening by Ca addition in die-cast AM50 magnesium alloy. Metall Mater Trans A Phys Metall Mater Sci2004; 35: 3029–3032.
22.
SlutskyLJGarlandCW. Elastic constants of magnesium from 4.2°K to 300°K. Phys Rev1957; 107: 972–976.
23.
BankotiAKSMondalAKDieringaH, et al.Impression creep behaviour of squeeze-cast Ca and Sb added AZ91 magnesium alloy. Mater Sci Eng A2016; 673: 332–345.
24.
ArunachaleswaranAPereiraIMDieringaH, et al.Creep behavior of AE42 based hybrid composites. Mater Sci Eng A2007; 460–461: 268–276.
25.
SkleničkaVLangdonTG. Creep properties of a fiber-reinforced magnesium alloy. J Mater Sci2004; 39: 1647–1652.
26.
SomekawaHHiraiKWatanabeH, et al.Dislocation creep behavior in Mg–Al–Zn alloys. Mater Sci Eng A2005; 407: 53–61.
27.
LuoMPBAlanAPowellBR. Creep and microstructure of magnesium-aluminum-calcium based alloys. Metall Mater Trans A2002; 33: 567–574.
