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在微观力学行为分析的基础上,对90W合金宏观力学性能及其与微观结构因素(粘结相力学参数)之间的关系进行了计算机数值模拟研究.结果表明:钨合金性能与粘结相力学参数密切相关.随着粘结相弹性模量增加,合金的抗拉强度增加,但延伸率降低.当粘结相屈服强度800MPa时,合金抗拉强度随粘结相屈服强度增加而增大,在粘结相屈服度为800MPa时达到最大值.随粘结相抗拉强度增加,合金抗拉强度和延伸率均呈近似线性规律增加.合金延伸率对粘结相应变硬化模量极为敏感.
Based on the analysis of microscopic mechanical behavior, the numerical simulation of the relationship between the macroscopic mechanical properties of 90W alloy and the microstructure factors (binder phase mechanical parameters) was studied. The results show that the properties of tungsten alloy are closely related to the mechanical parameters of the binder phase. As the elastic modulus of the binder increases, the tensile strength of the alloy increases, but the elongation decreases. When the yield strength of the binder phase is 800 MPa, the tensile strength of the alloy increases with the increase of the yield strength of the binder phase and reaches the maximum value when the yield of the binder phase is 800 MPa. With the increase of the tensile strength of the binder phase, the tensile strength and elongation of the alloy showed an approximately linear increase. The elongation of the alloy is extremely sensitive to the corresponding modulus of hardening of the bond.