超塑性 m-δ关系曲线可以分为 m_L=m_(max)和 m_L=m_(min)两大类型。均可由下面的 C.L.(刘勤)m-σ方程表示:σ(％)=〔cε~(m-m_0)-1〕×100当σ=σ_0=0时,m=m_0≠0,C=C_0=κ_0/κ_0=1。当σ=σ_1(σ_(11),σ_(12),σ_(13),…,)时,m=m_1(m_(11),m_(12),m_(13),…),C=C_1(C_(11),C_(12),C_(13),…)=κ_1(κ_(11),κ_(12),κ_(13),…)/κ_0,当σ=σ_F时,m=m_F,C=C_F=κ_F/κ_0。对 C 值进行“规划”,得到的 C_1~(σ_O-σ_L)-(m_L=m_(max)),C_2~(σ_F-σ_L)-(m_L=m_(min)),C_3~(m_0-m_L)-(m_L=m_(max)和 C_4~(m_F-m_L)-(m_L=m_(min))四种类型的“规划”方程分别对 m_L=m_(max)和 m_L=m_(min)型 m-σ曲线适用。若 m-σ曲线属简单的下降式,C 及其“规划”值均可近似地取1。否则,C-σ关系是应加以研究的问题。m 和 k 值对σ值的效应可以分为动态(直接)和静态(间接)两种。最后的σ值是两种效应的综合结果。(注:m 和 κ 值见基本方程σ=κε~m) Superplastic m-δ curve can be divided into m_L = m_ (max) and m_L = m_ (min) two types. Can be expressed by the CL (Liu Qin) m-sigma equation below: σ (%) = [cε ~ (m-m_0) -1] × 100 When σ = σ_0 = 0, m = m_0 ≠ 0 and C = C_0 = κ_0 / κ_0 = 1. M = m_1 m_11, m_12, m_13, ...) when σ = σ_1 (σ_11, σ_12, σ_13, ...), C = C_1 (C_ (11), C_ (12), C_ (13), ...) = κ_1 (κ_ (11), κ_ (12), κ_ (13), ...) / κ_0 when m = m_F , C = C_F = κ_F / κ_0. C_ (σ_O-σ_L) - (m_L = m_max), C_2 ~ (σ_F-σ_L) - (m_L = m_min), C_3 ~ (m_0-m_L (m_L = m_max) and C_4 ~ (m_F-m_L) - (m_L = m_ (min)) for m_L = m max and m_L = m min If the m-sigma curve is of a simple descending type, both C and its “planning” values ​​can be approximated by 1. Otherwise, the C-σ relationship is a question that should be studied, and the values ​​of m and k for σ The effect of a value can be divided into two kinds: dynamic (direct) and static (indirect), and the final value of σ is the combined result of the two effects (Note: The basic equations σ and κ for m and κ are shown as σ = κε ~ m)