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一、前言众所周知,金属的硬度是机械性能的综合描述。实践表明,海绵钛的布氏硬度(HB)与抗拉强度(б_b)、伸长率(δ％)、面缩率(ψ％)有下列关系: HB<200kg/mm~2时,б_b=0.2764(HB-150)+47.3608; HB<150kg/mm~2时,δ％=31.8003-0.4167(HB-150); HB=150-170kg/mm~2时,δ％二28.8071一0.1334(HB-150); HB>170kg/mm~2时,δ％二26.7179-0.0632(HB-150); HB≤170kg/mm~2时,ψ％=58.7690-0.5486(HB-150);
First, the preamble As we all know, the hardness of the metal is a comprehensive description of the mechanical properties. Practice shows that the Brinell hardness (HB) of titanium sponge has the following relationship with tensile strength (б_b), elongation (δ%) and reduction of area (ψ%): HB = 200kg / (HB-150) of 0.2764 (HB-150) +47.3608; δ% = 31.8003-0.4167 (HB-150) for HB <150 kg / 150); ψ% = 58.7690-0.5486 (HB-150) when HB is greater than 170 kg / mm 2, δ 26.7179-0.0632 (HB-150)