discuss elaborately the four main strengthening methods against plastic yield?
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ᴍᴇᴛʜᴏᴅs ʜᴀᴠᴇ ʙᴇᴇɴ ᴅᴇᴠɪsᴇᴅ ᴛᴏ ᴍᴏᴅɪғʏ ᴛʜᴇ ʏɪᴇʟᴅ sᴛʀᴇɴɢᴛʜ, ᴅᴜᴄᴛɪʟɪᴛʏ, ᴀɴᴅ ᴛᴏᴜɢʜɴᴇss ᴏғ ʙᴏᴛʜ ᴄʀʏsᴛᴀʟʟɪɴᴇ ᴀɴᴅ ᴀᴍᴏʀᴘʜᴏᴜs ᴍᴀᴛᴇʀɪᴀʟs. ᴛʜᴇsᴇ sᴛʀᴇɴɢᴛʜᴇɴɪɴɢ ᴍᴇᴄʜᴀɴɪsᴍs ɢɪᴠᴇ ᴇɴɢɪɴᴇᴇʀs ᴛʜᴇ ᴀʙɪʟɪᴛʏ ᴛᴏ ᴛᴀɪʟᴏʀ ᴛʜᴇ ᴍᴇᴄʜᴀɴɪᴄᴀʟ ᴘʀᴏᴘᴇʀᴛɪᴇs ᴏғ ᴍᴀᴛᴇʀɪᴀʟs ᴛᴏ sᴜɪᴛ ᴀ ᴠᴀʀɪᴇᴛʏ ᴏғ ᴅɪғғᴇʀᴇɴᴛ ᴀᴘᴘʟɪᴄᴀᴛɪᴏɴs. ғᴏʀ ᴇxᴀᴍᴘʟᴇ, ᴛʜᴇ ғᴀᴠᴏʀᴀʙʟᴇ ᴘʀᴏᴘᴇʀᴛɪᴇs ᴏғ sᴛᴇᴇʟ ʀᴇsᴜʟᴛ ғʀᴏᴍ ɪɴᴛᴇʀsᴛɪᴛɪᴀʟ ɪɴᴄᴏʀᴘᴏʀᴀᴛɪᴏɴ ᴏғ ᴄᴀʀʙᴏɴ ɪɴᴛᴏ ᴛʜᴇ ɪʀᴏɴ ʟᴀᴛᴛɪᴄᴇ. ʙʀᴀss, ᴀ ʙɪɴᴀʀʏ ᴀʟʟᴏʏ ᴏғ ᴄᴏᴘᴘᴇʀ ᴀɴᴅ ᴢɪɴᴄ, ʜᴀs sᴜᴘᴇʀɪᴏʀ ᴍᴇᴄʜᴀɴɪᴄᴀʟ ᴘʀᴏᴘᴇʀᴛɪᴇs ᴄᴏᴍᴘᴀʀᴇᴅ ᴛᴏ ɪᴛs ᴄᴏɴsᴛɪᴛᴜᴇɴᴛ ᴍᴇᴛᴀʟs ᴅᴜᴇ ᴛᴏ sᴏʟᴜᴛɪᴏɴ sᴛʀᴇɴɢᴛʜᴇɴɪɴɢ. ᴡᴏʀᴋ ʜᴀʀᴅᴇɴɪɴɢ (sᴜᴄʜ ᴀs ʙᴇᴀᴛɪɴɢ ᴀ ʀᴇᴅ-ʜᴏᴛ ᴘɪᴇᴄᴇ ᴏғ ᴍᴇᴛᴀʟ ᴏɴ ᴀɴᴠɪʟ) ʜᴀs ᴀʟsᴏ ʙᴇᴇɴ ᴜsᴇᴅ ғᴏʀ ᴄᴇɴᴛᴜʀɪᴇs ʙʏ ʙʟᴀᴄᴋsᴍɪᴛʜs ᴛᴏ ɪɴᴛʀᴏᴅᴜᴄᴇ ᴅɪsʟᴏᴄᴀᴛɪᴏɴs ɪɴᴛᴏ ᴍᴀᴛᴇʀɪᴀʟs, ɪɴᴄʀᴇᴀsɪɴɢ ᴛʜᴇɪʀ ʏɪᴇʟᴅ sᴛʀᴇɴɢᴛʜs.
ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ᴜʜ✌
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