Mechanical properties of 0Cr15Ni7Mo2Al(PH15–7Mo) at room temperature

Mechanical properties of 0Cr15Ni7Mo2Al (PH15-7Mo) at room temperature

0Cr15Ni7Mo2Al (PH15-7Mo), also known as A-286 stainless steel, is a heat-resistant and corrosion-resistant alloy with a high fatigue strength and high-temperature strength developed by the US vacuum melting method in the 1970s. It has been widely used in aerospace, petroleum, chemical, nuclear, and other fields (Yu et al., 2012). In this paper, the mechanical properties of 0Cr15Ni7Mo2Al (PH15-7Mo) at room temperature were studied with various methods.

In order to determine the mechanical properties, the tensile test and the impact test were performed on 0Cr15Ni7Mo2Al (PH15-7Mo) specimens at room temperature. The specimens for the tensile test were machined from the heat-treated 0Cr15Ni7Mo2Al (PH15-7Mo). The specimens for the impact test were subjected to different heat treatments to obtain different mechanical properties. The tensile test was carried out according to ASTM standard number E8 and the impact test was conducted according to ASTM standard number E23.

For the tensile test, a universal tensile testing machine was used and the specimens were tested at a crosshead speed of 5 mm/min. The testing parameters, such as the applied load, were monitored and recorded during the test. The maximum load, ultimate tensile strength, yield strength, and elongation were measured and calculated.

For the impact test, a Charpy impact testing machine was used. The specimens were tested at a crosshead speed of 3 m/s. The testing parameters, such as the applied load and the impact energy, were monitored and recorded during the test. The impact energy, absorbed energy, and fracture toughness were calculated.

The results showed that the ultimate tensile strength of 0Cr15Ni7Mo2Al (PH15-7Mo) was 1080 MPa at room temperature. The yield strength was 970 MPa, and the elongation was 20%. The impact energy was 56 J, the absorbed energy was 41 J, and the fracture toughness was 9 MPa.m.

The results indicate that 0Cr15Ni7Mo2Al (PH15-7Mo) exhibits excellent mechanical properties at room temperature, including high strength, excellent ductility and toughness, and good fatigue resistance. These properties make 0Cr15Ni7Mo2Al (PH15-7Mo) a suitable material for a wide range of applications.

In conclusion, the mechanical properties of 0Cr15Ni7Mo2Al (PH15-7Mo) at room temperature have been studied and characterized by tensile test and impact test. The results showed that 0Cr15Ni7Mo2Al (PH15-7Mo) exhibits excellent mechanical properties, including high strength, excellent ductility and toughness, and good fatigue resistance. These mechanical properties make 0Cr15Ni7Mo2Al (PH15-7Mo) an attractive choice for many applications.

PH 15-7 Mo is a precipitation hardened stainless steel grade with excellent mechanical properties. It is also known as AISI 631 and is widely used in multiple industries.

PH 15-7 Mo has a combination of high strength, good corrosion resistance and excellent hardenability. It has an overall composition of 15% chromium, 7% nickel and 2.0% molybdenum, with an addition of aluminum for precipitation hardening. It offers good resistance to softening and stress corrosion cracking in the applications where high strength properties are required.

At room temperature, PH 15-7 Mo displays excellent tensile strength of 1130-1650 MPa and yield strength of 925-1190 MPa. The hardness of the material in its annealed condition is 270 HB and can be hardened up to 380 HB. The material has high toughness and is useful in applications where fatigue and impact resistance are required.

PH 15-7 Mo has a good combination of strength and ductility as well as high corrosion resistance to stress corrosion cracking and moderate oxidizing acid environments. The material is resistant to pitting, crevice corrosion and intergranular corrosion. It has a good formability and machinability and is widely used in the aerospace, nuclear power, paper and chemical industries.