Using PSCredential without User-Prompt

Using Powershell, You cannot use get-credential without some type of user-prompt. 

But! 

I found the method without user-prompt window!!

Here is my code

function Get-PSCredential

{

    param($userName, $password)    

    $secured_password = ConvertTo-SecureString $password -AsPlainText -Force

    New-object Management.Automation.PSCredential($userName, $secured_password)    

}

$cred = Get-PSCredential -userName "Administrator" -password "abcdefghijk"