Effect of Hot Isostatic Pressing on Microstructures and Stress-Rupture Properties of CM 939 Weldable Alloy

Effect of hot isostatic pressing (HIP) treatment on the microstructure and the stress rupture properties of CM 939 Weldable alloy have been investigated. The results shown that the HIP has the function of densification and homogenization, all of the microporosity have been almost removed, the segregation of the alloy have been reduced, the microstructure became better, the stress rupture life of CM 939 Weldable alloy have been obviously improved, Meanwhile, the data dispersion of stress rupture properties have been reduced for the alloy after HIP.

CM 939 WELDABLE ALLOY

Alloy IN 939 was developed for turbine airfoils and has been used extensively in industrial gas turbines. However, the development of the alloy and the joining technology required for application to large structural components in aero engines includes risks. This datasheet covers a weldable version of the alloy. This datasheet provides information on composition and tensile properties. It also includes information on casting. Filing Code: Ni-719. Producer or source: Cannon-Muskegon Corporation.

ALCAN 6056 T4/T78

Alcan 6056 alloy is an Al-Si-Mg-Zn-Cu-Mn weldable alloy, developed to provide medium strength similar to the incumbent 2024 alloy, with a lower density. This datasheet covers Alcan 6056 in several tempers as fuselage bare sheets. The alloy posesses, in several tempers, a superior combination of weldability, strength, and corrosion resistance. This datasheet provides information on composition, physical properties, microstructure, tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: AL-430. Producer or source: Alcan Inc. and Alcan Aerospace.

ALCAN 6056 T4511/T6511/T78511

Alcan 6056 alloy is an Al-Si-Mg-Zn-Cu-Mn weldable alloy, developed to provide medium strength similar to the incumbent 2024 alloy, with a lower density. This datasheet covers ALCAN 6056 in several tempers as thin extrusions. The alloy possesses, in several tempers, a superior combination of weldability, high-strength, and corrosion resistance. This datasheet provides information on composition and tensile properties as well as fatigue. It also includes information on corrosion resistance as well as forming and heat treating. Filing Code: AL-419. Producer or source: Alcan Inc.

ALCAN 2195 T8R78

Alcan 2195 T8R78 is an addition to the Weldalite Al-Cu-Li-Ag-Mg-Zr family of alloys. It is a highly damage tolerant weldable alloy for aerospace applications. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on low temperature performance and corrosion resistance as well as forming, heat treating, and machining. Filing Code: AL-410. Producer or source: Alcan Inc.

CM 939 Weldable® Alloy Update

Cannon-Muskegon has developed a proprietary chemistry modified version of IN 939 designated CM 939 Weldable®. As presented in 2004, emphasis was placed on optimizing aim chemistry, utilizing Cannon-Muskegon ultra high purity manufacture technology, and obtaining superior casting microstructure for improved weldability and mechanical properties. This paper will review the unique properties that make this alloy desirable, with particular attention to production experience and ongoing developments. Significant market interest has resulted in extensive vacuum casting experience throughout the gas turbine industry. In the 2–3 years since introduction, CM 939 Weldable alloy has accumulated substantial engine performance experience in industrial gas turbine vane applications. New application programs, including vane rings and turbine containment ring components, advances in weldability using CM 939 Weldable filler wire and special application alloy modifications (DT1 & DT2) will also be presented.